TOREX XC9505_1

XC9505 Series
ETR0705_002
2 ch.Step-Down / Inverting DC/DC Controller ICs.
☆GO-Compatible
■GENERAL DESCRIPTION
XC9505 series are PWM controlled, PWM/PFM switching 2 channel (step-down and inverting) DC/DC controller ICs. With 0.9V of
standard voltage supply internal, and using externally connected components, the output 1 voltage (step-down DC/DC controller)
can be set freely within a range of 0.9V to 6.0V. Since output 2 (inverting DC/DC controller) has a built-in 0.9V reference voltage
(accuracy ±2%), a negative voltage can be set with the external components.
With a 180kHz frequency, the size of the external components can be reduced. Switching frequencies of 300kHz and 500kHz are
also available as custom designed products.
The control of the XC9505 series can be switched between PWM control and PWM/PFM automatic switching control using external
signals. Control switches from PWM to PFM during light loads when automatic switching is selected and the series is highly
efficient from light loads through to large output currents. Noise is easily reduced with PWM control since the frequency is fixed.
The series gives freedom of control selection so that control suited to the application can be selected. Soft-start time is internally set
to 10msec (output1) which offers protection against rush currents and voltage overshoot when the power is switched on.
■APPLICATIONS
●PDAs
●Palm top computers
●Digital cameras
●Various power supplies
■TYPICAL APPLICATION CIRCUIT
<XC9505B092A
Input: 2 cell, VOUT: 3.3V, VOUT: - 5.0V >
■FEATURES
2 ch. DC/DC Controller (Step-Down / Inverting)
<Output 1: Step-Down DC/DC Controller>
Output Voltage Range
: 0.9V ~ 6.0V (set by FB1 pin)
Output Current
: More than 1000mA
(VIN=5.0V, VOUT=3.3V)
Maximum Duty Ciycle
: 100%
Soft-Start Internally Set-Up
<Output 2: Inverting DC/DC Controller>
Output Voltage Range
: -30V ~ 0V (set by FB2 pin)
Output Current
: More than -100mA
(VIN=5.0V, VOUT= - 3.3V)
Maximum Duty Cycle
: 80% (TYP.)
<Common>
Operating Voltage Range : 2.0V ~ 10.0V
Oscillation Frequency
: 180kHz (±15%)
* 300kHz, 500kHz custom
Control Method
: PWM or PWM/PFM Selectable
Stand-by Function
: 3.0μF (MAX.)
Packages
: MSOP-10, USP-10
■TYPICAL PERFORMANCE
CHARACTERISTICS
●Efficiency vs. Output Current
1/50
XC9505 Series
■PIN CONFIGURATION
1 EXT1
EXT2 10
2 VDD
GND 9
3 FB1
FB2 8
4 PWM1
PWM2 7
EN2 6
CE2
5 CE1
EN1
USP-10
(BOTTOM VIEW)
MSOP-10
(TOP VIEW)
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTIONS
1
EXT 1
2
VDD
Supply Voltage
3
FB1
Channel 1: Output Voltage Monitor Feedback Pin <Threshold value: 0.9V. Output voltage
can be set freely by connecting split resistors between VOUT1 and Ground.>
4
PWM1
Channel 1: PWM/PFM Switching Pin <Control Output 1. PWM control when connected to
VDD, PWM / PFM auto switching when connected to Ground. >
5
EN1
6
EN2
7
PWM2
8
FB2
9
GND
Ground
10
EXT2/
Channel 2: External Transistor Drive Pin <Connected to P-ch Power MOSFET Gate>
Channel 1: External Transistor Drive Pin <Connected to P-ch Power MOSFET Gate>
Channel 1: Enable Pin <Connected to Ground when Output 1 is in stand-by mode.
Connected to VDD when Output 1 is active. EXT1 is high when in stand-by mode.>
Channel 2: Enable Pin <Connected to Ground when Output 2 is in stand-by mode.
Connected to VDD when Output 2 is active. EXT2/ is high when in stand-by mode.>
Channel 2: PWM/PFM Switching Pin <Control Output 2. PWM control when connected to
VDD, PWM / PFM auto switching when connected to Ground.>
Channel 2: Output Voltage Monitor Feedback Pin <Threshold value: 0.9V. Output voltage
can be set freely by connecting split resistors between VOUT2 and VOUT1.>
■PRODUCT CLASSIFICATION
●Ordering Information
XC9505①②③④⑤⑥
MARK
DESCRIPTION
2/50
SYMBOL
DESCRIPTION
①
Type of DC/DC Controller
B
: Standard type (10 pin)
② ③
Output Voltage
09
: FB products→②=0, ③=9 fixed
④
Oscillation Frequency
⑤
Package
⑥
Device Orientation
2
: 180kHz
3
: 300kHz (custom)
5
: 500kHz (custom)
A
D
R
: MSOP-10
: USP-10
: Embossed tape, standard feed
L
: Embossed tape, reverse feed
XC9505
Series
■BLOCK DIAGRAM
PW M/PFM
Controller1
EXT1
PWM/PFM
Controller2
EXT2/
PWM
Comparator2
PWM
Comparator1
GND
-
+
FB1
-
+
VDD
+
-
-
+
Error Amp1
Ramp W ave
Gene rator1
Ramp Wave
Gene rator2
FB2
Error Amp2
PW M1
PWM2
OSC
Gene rator
Vref1=0.9V
with Soft Start1,
CE1
EN1
EN1
EN1 to
internal circuit
EN2 to
internal circuit
Vref2=0.9V,
EN2
CE2
EN
■ABSOLUTE MAXIMUM RATINGS
Ta=25℃
PARAMETER
SYMBOL
RATINGS
UNITS
VDD Pin Voltage
VDD
- 0.3 ~ 12.0
V
FB1, 2 Pin Voltage
VFB
- 0.3 ~ 12.0
V
EN1, 2 Pin Voltage
VEN
- 0.3 ~ 12.0
V
PWM1, 2 Pin Voltage
VPWM
- 0.3 ~ 12.0
V
EXT1, 2 Pin Voltage
VEXT
- 0.3 ~ VDD + 0.3
V
EXT1, 2 Pin Current
IEXT
± 100
mA
Power Dissipation
MSOP-10
USP-10
Pd
150
150
mW
Operating Temperature Range
Topr
- 40 ~ + 85
℃
Storage Temperature Range
Tstg
- 55 ~ + 125
℃
3/50
XC9505 Series
■ELECTRICAL CHARACTERISTICS
XC9505B092A
Common Characteristics
PARAMETER
SYMBOL
Supply Voltage
VDD
Output Voltage Range(*1)
VOUTSET
Supply Current 1
Supply Current 1-1
Supply Current 1-2
Supply Current 1-3
Supply Current 1-4
Supply Current 2
Stand-by Current
Oscillation Frequency
EN1, 2 "High" Voltage
EN1, 2 "Low" Voltage
EN1, 2 "High" Current
EN1, 2 "Low" Current
PWM1, 2 "High" Current
PWM1, 2 "Low" Current
FB1, 2 "High" Current
FB1, 2 "Low" Current
IDD1
IDD1-1
IDD1-2
IDD1-3
IDD1-4
IDD2
ISTB
FOSC
VENH
VENL
IENH
IENL
IPWMH
IPWML
IFBH
VFBL
CONDITIONS
VDD≧2.0V, IOUT1, 2=1mA
VOUT1
VOUT2
FB=0V, FB2=1.2V
EN1=3.0V, EN2=0, FB1=0V
EN2=3.0V, EN1=0, FB2=1.2V
FB1=0V, FB2=0V
FB1=1.2V, FB2=1.2V
FB1=1.2V, FB2=0V
Same as IDD1, EN1=EN2=0V
Same as IDD1
FB1=0V, FB2=3.0V
FB1=0V, FB2=3.0V
FB1=3.0V, FB2=0V
EN1, 2=0V, FB1=3.0V, FB2=0V
FB1=3.0V, FB2=0V, PWM1, 2=3.0V
FB1=3.0V, FB2=0V, PWM1, 2=0V
FB1=3.0V, FB2=0.8V
FB1=1.0V, FB2=0V
Ta=25℃
MIN.
TYP.
MAX.
UNITS
CIRCUIT
2.0
0.9
153
0.65
-
80
50
60
70
80
70
1.0
180
-
10.0
VIN
0.0
160
110
120
120
150
130
3.0
207
0.20
0.50
-0.50
0.50
-0.50
0.50
-0.50
V
-
V
①
μA
μA
kHz
V
V
μA
μA
μA
μA
μA
μA
②
②
②
②
②
②
②
②
②
②
②
②
②
②
②
②
MIN.
TYP.
MAX.
UNITS
CIRCUIT
0.882
100
22
0.900
30
0.918
2.0
0
38
V
V
%
%
%
③
①
②
②
④
-
92
-
%
④
5.0
10.0
20.0
ms
④
-
28
47
Ω
⑤
0.65
-
22
-
30
0.20
Ω
V
V
⑤
④
④
μA
μA
μA
μA
μA
Unless otherwise stated, VDD=3.0V, PWM1, 2=3.0V, EN1, 2 = 3.0V
Output 1 Characteristics
Step-Down Controller
PARAMETER
SYMBOL
FB1 Voltage
Minimum Operating Voltage
Maximum Duty Ratio1
Minimum Duty Ratio1
PFM Duty Ratio1
VFB1
VINmin1
MINDTY1
MAXDTY1
PFMDTY1
Efficiency1 (*2)
EFFI1
Soft-Start Time1
TSS1
EXT1 "High"
ON Resistance
EXT1 "Low"
ON Resistance
PWM1 "High" Voltage
PWM1 "Low" Voltage
CONDITIONS
VDD=3.0V, VIN=1.5V, IOUT1=10mA
Same as IDD1
Same as IDD2
No Load, VPWM1=0V
IOUT1= 250mA, Pch MOSFET:
XP162A12A6P
VOUT1×0.95V, EN1=0V→0.65V
REXTBH1
FB1=0V, EXT1=VDD -0.4V
REXTBL1
VPWMH1
VPWML1
EN1=FB1=1.2V, EXT1=0.4V
No Load
No Load
Ta=25℃
Unless otherwise stated, VDD=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, VIN=1.8V
Output 2 Characteristics
Inverting DC/DC Controller
Ta=25℃
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
CIRCUIT
FB2 Voltage
VFB2
0.882
0.900
0.918
V
②
Operation Start Voltage2
VST1-2
-
-
2.0
V
①
Oscillation Start Voltage2
Maximum Duty Ratio2
Minimum Duty Ratio2
PFM Duty Ratio2
Efficiency2 (*2)
VST2-2
MAXDTY2
MINDTY3
PFMDTY2
EFFI2
VDD=3.0V
IOUT2=1.0mA, RFB11=200kΩ,
RFB12=75kΩ
RFB21=17.5kΩ, RFB22=10kΩ,
EN1=PWM1=3.0V
FB2=1.2V
Same as IDD1
Same as IDD2
No Load, VPWM2=0V
IOUT2= -150mA, Pch MOSFET: XP162A12A6P
75
22
-
80
30
76
2.0
87
0
38
-
V
%
%
%
%
②
②
②
⑥
⑥
REXTBH2
EN2=FB2= 0V, EXT2=VDD-0.4V
-
28
47
Ω
⑤
REXTBL2
VPWMH2
VPWML2
FB2=3.0V, EXT2=0.4V
No Load
No Load
0.65
-
22
-
30
0.20
Ω
V
V
⑤
⑥
⑥
EXT2 "High"
ON Resistance
EXT2 "Low" ON Resistance
PWM2 "High" Voltage
PWM2 "Low" Voltage
Unless otherwise stated, VDD=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, VIN=3.0V
NOTE: *1: Please be careful not to exceed the breakdown voltage level of the peripheral parts.
*2: EFFI1, 2={ [ (output voltage) x (output current) ] / [ (input voltage) x (input current) ] } x 100
4/50
XC9505
Series
■ELECTRICAL CHARACTERISTICS (Continued)
XC9505B093A
Common Characteristics
PARAMETER
SYMBOL
Supply Voltage
VDD
Output Voltage Range(*1)
VOUTSET
Supply Current 1
Supply Current 1-1
Supply Current 1-2
Supply Current 1-3
Supply Current 1-4
Supply Current 2
Stand-by Current
Oscillation Frequency
EN1, 2 "High" Voltage
EN1, 2 "Low" Voltage
EN1, 2 "High" Current
EN1, 2 "Low" Current
PWM1, 2 "High" Current
PWM1, 2 "Low" Current
FB1, 2 "High" Current
FB1, 2 "Low" Current
IDD1
IDD1-1
IDD1-2
IDD1-3
IDD1-4
IDD2
ISTB
FOSC
VENH
VENL
IENH
IENL
IPWMH
IPWML
IFBH
VFBL
CONDITIONS
VDD≧2.0V, IOUT1, 2=1mA
VOUT1
VOUT2
FB=0V, FB2=1.2V
EN1=3.0V, EN2=0, FB1=0V
EN2=3.0V, EN1=0, FB2=1.2V
FB1=0V, FB2=0V
FB1=1.2V, FB2=1.2V
FB1=1.2V, FB2=0V
Same as IDD1, EN1=EN2=0V
Same as IDD1
FB1=0V, FB2=3.0V
FB1=0V, FB2=3.0V
FB1=3.0V, FB2=0V
EN1, 2=0V, FB1=3.0V, FB2=0V
FB1=3.0V, FB2=0V, PWM1, 2=3.0V
FB1=3.0V, FB2=0V, PWM1, 2=0V
FB1=3.0V, FB2=0.8V
FB1=1.0V, FB2=0V
Ta=25℃
MIN.
TYP.
MAX.
UNITS
CIRCUIT
2.0
0.9
255
0.65
-
100
60
80
80
100
80
1.0
300
-
10.0
VIN
0.0
190
120
150
140
180
150
3.0
345
0.20
0.50
-0.50
0.50
-0.50
0.50
-0.50
V
-
V
①
μA
②
②
②
②
②
②
②
②
②
②
②
②
②
②
②
②
μA
μA
μA
μA
μA
μA
kHz
V
V
μA
μA
μA
μA
μA
μA
Unless otherwise stated, VDD=3.0V, PWM1, 2=3.0V, EN1, 2 = 3.0V
Output 1 Characteristics
Step-Down Controller
PARAMETER
SYMBOL
FB1 Voltage
VFB1
VINmin1
MINDTY1
MAXDTY2
PFMDTY1
EFFI1
TSS1
Same as IDD1
Same as IDD2
No Load, VPWM1=0V
IOUT1= 250mA, Pch MOSFET: XP162A12A6P
VOUT1×0.95V, EN1=0V→0.65V
REXTBH1
FB1=0V, EXT1=VDD -0.4V
REXTBL1
VPWMH1
VPWML1
EN1=FB1=1.2V, EXT1=0.4V
No Load
No Load
Minimum Operating Voltage
Maximum Duty Ratio1
Minimum Duty Ratio1
PFM Duty Ratio1
Efficiency1 (*2)
Soft-Start Time1
EXT1 "High"
ON Resistance
EXT1 "Low" ON Resistance
PWM1 "High" Voltage
PWM1 "Low" Voltage
CONDITIONS
VDD=3.0V, VIN=1.5V, IOUT1=10mA
Ta=25℃
MIN.
TYP.
MAX.
UNITS
CIRCUIT
0.882
22
5.0
0.900
30
92
10.0
0.918
2.0
100
38
20.0
V
V
%
%
%
%
ms
③
①
②
②
④
④
④
0.65
-
28
22
-
47
30
0.20
Ω
Ω
V
V
⑤
⑤
④
④
Unless otherwise stated, VDD=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, VIN=1.8V
Output 2 Characteristics
Inverting DC/DC Controller
Ta=25℃
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
CIRCUIT
FB2 Voltage
VFB2
0.882
0.900
0.918
V
②
Operation Start Voltage2
VST1-2
-
-
2.0
V
①
Oscillation Start Voltage2
Maximum Duty Ratio2
Minimum Duty Ratio2
PFM Duty Ratio2
Efficiency2 (*2)
VST2-2
MAXDTY2
MINDTY3
PFMDTY2
EFFI2
VDD=3.0V
IOUT2=1.0mA, RFB11=200kΩ,
RFB12=75kΩ
RFB21=17.5kΩ, RFB22=10kΩ,
EN1=PWM1=3.0V
FB2=1.2V
Same as IDD1
Same as IDD2
No Load, VPWM2=0V
IOUT2= -150mA, Pch MOSFET: XP162A12A6P
75
22
-
80
30
75
2.0
87
0
38
-
V
%
%
%
%
②
②
②
⑥
⑥
REXTBH2
EN2=FB2= 0V, EXT2=VDD-0.4V
-
28
47
Ω
⑤
REXTBL2
VPWMH2
VPWML2
FB2=3.0V, EXT2=0.4V
No Load
No Load
0.65
-
22
-
30
0.20
Ω
V
V
⑤
⑥
⑥
EXT2 "High"
ON Resistance
EXT2 "Low" ON Resistance
PWM2 "High" Voltage
PWM2 "Low" Voltage
Unless otherwise stated, VDD=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, VIN=3.0V
NOTE: *1: Please be careful not to exceed the breakdown voltage level of the peripheral parts.
*2: EFFI1, 2={ [ (output voltage) x (output current) ] / [ (input voltage) x (input current) ] } x 100
5/50
XC9505 Series
■ELECTRICAL CHARACTERISTICS (Continued)
XC9505B095A
Common Characteristics
PARAMETER
SYMBOL
Supply Voltage
VDD
Output Voltage Range(*1)
VOUTSET
Supply Current 1
Supply Current 1-1
Supply Current 1-2
Supply Current 1-3
Supply Current 1-4
Supply Current 2
Stand-by Current
Oscillation Frequency
EN1, 2 "High" Voltage
EN1, 2 "Low" Voltage
EN1, 2 "High" Current
EN1, 2 "Low" Current
PWM1, 2 "High" Current
PWM1, 2 "Low" Current
FB1, 2 "High" Current
FB1, 2 "Low" Current
IDD1
IDD1-1
IDD1-2
IDD1-3
IDD1-4
IDD2
ISTB
FOSC
VENH
VENL
IENH
IENL
IPWMH
IPWML
IFBH
VFBL
CONDITIONS
VDD≧2.0V, IOUT1, 2=1mA
VOUT1
VOUT2
FB=0V, FB2=1.2V
EN1=3.0V, EN2=0, FB1=0V
EN2=3.0V, EN1=0, FB2=1.2V
FB1=0V, FB2=0V
FB1=1.2V, FB2=1.2V
FB1=1.2V, FB2=0V
Same as IDD1, EN1=EN2=0V
Same as IDD1
FB1=0V, FB2=3.0V
FB1=0V, FB2=3.0V
FB1=3.0V, FB2=0V
EN1, 2=0V, FB1=3.0V, FB2=0V
FB1=3.0V, FB2=0V, PWM1, 2=3.0V
FB1=3.0V, FB2=0V, PWM1, 2=0V
FB1=3.0V, FB2=0.8V
FB1=1.0V, FB2=0V
Ta=25℃
MIN.
TYP.
MAX.
UNITS
CIRCUIT
2.0
0.9
-
130
80
110
100
140
100
10.0
VIN
0.0
250
150
220
170
230
190
V
-
V
①
μA
425
0.65
-
1.0
500
-
3.0
575
0.20
0.50
-0.50
0.50
-0.50
0.50
-0.50
μA
kHz
V
V
μA
μA
μA
μA
μA
μA
②
②
②
②
②
②
②
②
②
②
②
②
②
②
②
②
MIN.
TYP.
MAX.
UNITS
CIRCUIT
0.882
22
5.0
0.65
-
0.900
30
91
10.0
28
22
-
0.918
2.0
100
0
38
20.0
47
30
0.20
V
V
%
%
%
%
ms
Ω
Ω
V
V
③
①
②
②
④
④
④
⑤
⑤
④
④
μA
μA
μA
μA
μA
Unless otherwise stated, VDD=3.0V, PWM1, 2=3.0V, EN1, 2 = 3.0V
Output 1 Characteristics
PARAMETER
Step-Down Controller
SYMBOL
FB1 Voltage
VFB1
Minimum Operating Voltage
VINmin1
Maximum Duty Ratio1
MINDTY1
Minimum Duty Ratio1
MAXDTY2
PFM Duty Ratio1
PFMDTY1
Efficiency1 (*2)
EFFI1
Soft-Start Time1
TSS1
EXT1 "High" ON Resistance REXTBH1
EXT1 "Low" ON Resistance
REXTBL1
PWM1 "High" Voltage
VPWMH1
PWM1 "Low" Voltage
VPWML1
CONDITIONS
VDD=3.0V, VIN=1.5V, IOUT1=10mA
Same as IDD1
Same as IDD2
No Load, VPWM1=0V
IOUT1= 250mA, P-ch MOSFET: XP162A12A6P
VOUT1×0.95V, EN1=0V→0.65V
FB1=0V, EXT1=VDD -0.4V
EN1=FB1=1.2V, EXT1=0.4V
No Load
No Load
Ta=25℃
Unless otherwise stated, VDD=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, VIN=1.8V
Output 2 Characteristics
Inverting DC/DC Controller
Ta=25℃
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
CIRCUIT
FB2 Voltage
VFB2
0.882
0.900
0.918
V
②
Operation Start Voltage2
VST1-2
-
-
2.0
V
①
Oscillation Start Voltage2
Maximum Duty Ratio2
Minimum Duty Ratio2
PFM Duty Ratio2
Efficiency2 (*2)
VST2-2
MAXDTY2
MINDTY3
PFMDTY2
EFFI2
VDD=3.0V
IOUT2=1.0mA, RFB11=200kΩ,
RFB12=75kΩ
RFB21=17.5kΩ, RFB22=10kΩ,
EN1=PWM1=3.0V
FB2=1.2V
Same as IDD1
Same as IDD2
No Load, VPWM2=0V
IOUT2= -150mA, P-ch MOSFET: XP162A12A6P
75
22
-
80
30
71
2.0
87
0
38
-
V
%
%
%
%
②
②
②
⑥
⑥
REXTBH2
EN2=FB2= 0V, EXT2=VDD-0.4V
-
28
47
Ω
⑤
REXTBL2
VPWMH2
VPWML2
FB2=3.0V, EXT2=0.4V
No Load
No Load
0.65
-
22
-
30
0.20
Ω
V
V
⑤
⑥
⑥
EXT2 "High"
ON Resistance
EXT2 "Low" ON Resistance
PWM2 "High" Voltage
PWM2 "Low" Voltage
Unless otherwise stated, VDD=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, VIN=3.0V
NOTE: *1: Please be careful not to exceed the breakdown voltage level of the peripheral parts.
*2: EFFI1, 2={ [ (output voltage) x (output current) ] / [ (input voltage) x (input current) ] } x 100
6/50
XC9505
Series
■OPERATIONAL DESCRIPTION
The XC9505 series are dual DC/DC (step-down + inverting) converter controller ICs with built-in high speed, low ON
resistance buffers.
<Error Amp. 1>
Error amplifier 1 is designed to monitor the output voltage and it compares the feedback voltage 1 (FB1) with the reference
voltage Vref1. In response to feedback of a voltage lower than the reference voltage Vref1, the output voltage of the error
amp. decreases.
<Error Amp. 2>
Error amplifier 2 is designed to monitor the output voltage and it compares the feedback voltage 2 (FB2) with the reference
voltage Vref 2. In response to feedback of a voltage lower than the reference voltage Vref2, the output voltage of the
error amp. decreases.
<OSC Generator>
This circuit generates the internal reference clock.
<Ramp Wave Generator 1, 2>
The ramp wave generator generates a saw-tooth waveform based on outputs from the OSC generator.
<PWM Comparator 1, 2>
The PWM comparator compares outputs from the error amp. and saw-tooth waveform. When the voltage from the error
amp's output is low, the external switch will be set to ON.
<PWM/PFM Controller 1, 2>
This circuit generates PFM pulses.
Control can be switched between PWM control and PWM/PFM automatic switching control using external signals.
The PFM/PWM automatic switching mode is selected when the voltage of the PWM1 (2) pin is less than 0.2V, and the
control switches between PWM and PFM automatically depending on the load. As the PFM circuit generates pulses
based on outputs from the PWM Comparator, shifting between modes occurs smoothly. PWM control mode is selected
when the voltage of the PWM1 (2) pin is more than 0.65V. Noise is easily reduced with PWM control since the switching
frequency is fixed. Control suited to the application can easily be selected which is useful in audio applications, for
example, where traditionally, efficiencies have been sacrificed during stand-by as a result of using PWM control (due to the
noise problems associated with the PFM mode in stand-by).
<Vref 1 with Soft Start 1>
The reference voltage, Vref1 (FB1 pin voltage)=0.9V, is adjusted and fixed by laser trimming (for output voltage settings,
please refer to the functional settings on next page.). To protect against inrush current, when the power is switched on, and
also to protect against voltage overshoot, soft-start time is set internally to 10ms. It should be noted, however, that this
circuit does not protect the load capacitor (CL) from inrush current. With the Vref voltage limited, and depending upon the
input to error amp 1, the operation maintains a balance between the two inputs of error amps and controls the EXT pin's
ON time so that it doesn't increase more than is necessary.
<Vref 2>
The reference voltage, Vref2 (FB2 pin voltage)=0.9V, is adjusted and fixed by laser trimming.
<Enable Function 1,2>
This function controls the operation and shutdown of the IC. When the voltage of the EN1 or EN2 pins is 0.2V or less, the
mode will be disable, the channel's operations will stop and the EXT1 and the EXT2 pin will be kept at a high level (the
external P-ch MOSFET will be OFF). When both EN1 and EN2 are in a state of chip disable, current consumption will be
no more than 3.0μA. When the EN1 or EN2 pin's voltage is 0.65V or more, the mode will be enable and operations will
recommence. With channel one (output 1) soft-start, 95% of the set output voltage will be reached within 10msec (TYP.)
from the moment of enable.
7/50
XC9505 Series
■OPERATING EXPLANATION
< Output Voltage Setting, Ch.1 (Step-up DC/DC Converter Controller) >
Output voltage can be set by adding external split resistors. Output voltage is determined by the following equation,
based on the values of RFB11 and RFB12. The sum of RFB11 and RFB12 should normally be 1MΩ or less.
VOUT1=0.9 × (RFB11+RFB12) / RFB12
The speed-up capacitor for phase compensation's (CFB1) value should be adjusted using the formula
fzfb=1/(2×π×CFB1×RFB11) so that it equals 12kHz. Depending on the application, the inductance value L, and the load
capacity value CL, adjustments to this value are suggested so that the value is somewhere between 1kHz to 50kHz.
[Calculation Example]
When RFB11=200kΩ and RFB12=75kΩ : VOUT1=0.9 × (200k+75k) / 75k=3.3V.
[Typical Example]
VOUT
(V)
1.0
1.5
1.8
2.0
2.2
RFB11
(kΩ)
30
220
220
330
390
RFB12
(kΩ)
270
330
220
270
270
CFB1
(pF)
430
62
62
39
33
VOUT
(V)
2.5
2.7
3.0
3.3
5.0
RFB11
(kΩ)
390
360
560
200
82
RFB12
(kΩ)
220
180
240
75
18
CFB1
(pF)
33
33
24
62
160
< Output Voltage Setting, Ch.2 (Inverting DC/DC Converter) >
Output voltage can be set by adding reference voltage and split resistors externally. Output voltage is determined using
the following equation and is based on the values of RFB21 and RFB22. The sum of RFB21 and RFB22 should normally be
500kΩ or less. The equation uses Ch 1's (VOUT1) output voltage calculation method for the reference voltage.
VOUT2 = (0.9 - VOUT1) x (RFB21 / RFB22) + 0.9V
[Calculation Example]
When RFB21=17.5kΩ RFB22=10kΩ, VOUT1=3.3V, VOUT2= - 3.3V
The value of speed-up capacitor for phase compensation CFB21:
[Conditions: Heavy load (when coil current is continuous.)]
fzfb2 = 1/2 x π x CFB21 x RFB21) = 10kHz
Depending on the application, the inductance value L, and the load capacity value CL, adjustments to this value are
suggested so that the value is somewhere between 0.1kHz to 50kHz.
[Conditions: Light load (when coil current is discontinuous.)]
Less than CFB21=0.1μF
Depending on the application, the inductance value L, and the load capacity value CL, adjustments to this value are
suggested.
> Example Circuit 1:
Using voltage of Ch 1 (Step-Down)
Channel 1 (Step-Down) circuits should be enable by setting
EN1 to High level so that a stable voltage is provided.
Inrush current to the inverter when the supply voltage VDD
of the IC is 2.0 V or higher can be controlled by setting EN 1
and EN 2 to enable (“H” level) simultaneously.
> Example Circuit 2:
Using a positive regulator
A stable positive voltage produced by a positive-voltage
regulator or by other means is usable.
VOUT2 = (0.9 - VROUT) x (RFB21 / RFB22) + 0.9V
8/50
XC9505
Series
■EXTERNAL COMPONENTS
Conditions: Light load (when coil current is discontinuous)
Channel One (Step-Down DC/DC Converter Controller)
Channel Two (Inverter DC/DC Controller)
Tr 1 :
Tr 2 :
SD 1 :
L1 :
CL1 :
* MOSFET
(P-ch Power MOSFET, TOREX)
XP152A12C0
Note : VGS Breakdown Voltage of this Tr. is 12V so
please be careful with the power supply voltage.
CRS02
(Schottky, TOSHIBA)
10μH
(CDRH4D18C, SUMIDA,
D412F, TOKO, FOSC = 500kHz)
15μH
(CDRH4D18C, SUMIDA,
D412F, TOKO, FOSC = 300kHz)
22μH
(CDRH4D18C, SUMIDA,
D412F, TOKO, FOSC = 180kHz)
Please set so that the coil current is discontinuous.
10V, 4.7μF
(Ceramic)
*PNP Tr
2SA1213
RB1 :
500Ω
CB1 :
2200pF
(TOSHIBA)
Adjust in accordance with load &
Tr.'s HFE
RB1≦(VIN-0.7) x (hFE/IC-REXTBL)
(Ceramic)
SD 2 :
L2 :
CL2 :
* MOSFET
XP152A12C0
(P-ch Power MOSFET, TOREX)
Note: VGS Breakdown Voltage of this Tr. is 12V so
please be careful with the power supply voltage.
CRS02
(Schottky, TOSHIBA)
10μH
(CDRH4D18C, SUMIDA,
D412F, TOKO, FOSC = 500kHz)
15μH
(CDRH4D18C, SUMIDA,
D412F, TOKO, FOSC = 300kHz)
22μH
(CDRH4D18C, SUMIDA,
D412F, TOKO, FOSC = 180kHz)
Please set so that the coil current is discontinuous.
10V, 4.7μF
(Ceramic)
*PNP Tr
2SA1213
RB2 :
500Ω
CB2 :
2200pF
CB1≦(2π x RB1 x FOSC x 0.7)
(TOSHIBA)
Adjust in accordance with load &
Tr.'s HFE
RB2≦(VIN-0.7) x (hFE/IC-REXTBL)
(Ceramic)
CB2≦(2π x RB2 x FOSC x 0.7)
Conditions: Heavy load (when coil current is continuous)
Channel One (Step-Down DC/DC Converter Controller)
Channel Two (Inverter DC/DC Controller)
Tr 1 :
Tr 2 :
SD
1:
L1 :
* MOSFET
XP162A12A6P (P-ch Power MOSFET, TOREX)
Note: VGS Breakdown Voltage of this Tr. is 12V so
please be careful with the power supply voltage.
SD 2 :
MA2Q737
(Schottky, MATSUSHITA)
L2 :
CMS02
10μH
22μH
CL1 :
* MOSFET
XP162A12A6P (P-ch Power MOSFET, TOREX)
Note: VGS Breakdown Voltage of this Tr. is 12V so
please be careful with the power supply voltage.
47μH
16V, 47μF
(Schottky, TOSHIBA)
(CDRH5D28, SUMIDA,
FOSC = 500kHz)
(CDRH5D28, SUMIDA,
FOSC = 300kHz)
(CDRH5D28, SUMIDA,
FOSC = 180kHz)
(Tantalum)
MA2Q737
CRS02,
CMS02
10μH
15μH
CL2 :
22μH
16V, 47μF
(Schottky, MATSUSHITA)
(Schottky, TOSHIBA)
(CDRH5D28, SUMIDA,
FOSC = 500kHz)
(CDRH5D28, SUMIDA,
FOSC = 300kHz)
(CDRH5D28, SUMIDA,
FOSC = 180kHz)
(Tantalum)
CL=(CL standard value ) x (IOUT1 (mA)/500mA x VOUT1/VIN)
CL=(CL standard value ) x (IOUT2 (mA)/150mA x VOUT2/VIN)
RB1 :
*PNP Tr
2SA1213
500Ω
RB2 :
*PNP Tr
2SA1213
500Ω
CB1 :
2200pF
CB2 :
2200pF
(TOSHIBA)
Adjust in accordance with load &
Tr.'s HFE
RB1≦(VIN-0.7) x (hFE/IC-REXTBL)
(Ceramic)
CB1≦(2π x RB2 x FOSC x 0.7)
(TOSHIBA)
Adjust in accordance with load &
Tr.'s HFE
RB2≦(VIN-0.7) x (hFE/IC-REXTBL)
(Ceramic)
CB2≦(2π x RB2 x FOSC x 0.7)
9/50
XC9505 Series
■NOTES ON USE
●Application Hint
1. Channel 2 (Inverting) Soft start circuit
Channel 2 (inverting) is subject to the overshoot of output voltage 2 (VOUT2) at start-up. It is possible to control the
overshoot of output voltage 2 (VOUT2), as shown by circuit example 1 in “Output Voltage Settings for Channel 2” in
“Function Settings.” In this circuit configuration, EN 1 and EN 2 are enabled (set to “H” level) simultaneously. This lets
output voltage 1 (VOUT1) of channel 1 increase gently as soft start, thereby controlling the overshoot.
> Example of Typical application circuit: Improved Soft start
This example is effective when EN 1 and EN 2 are enabled with different timings under light load condition (the coil current
being discontinuous).
VOUT1
Inside of
XC9505 IC
FB2
Pch
MOSFET1
Time to make soft start time is calculated by the equation below.
R1
RFB22
Time SS 2 = - R FB21 x C CFB 21 / Ln
Nch
MOSFET2
1-
(0.9 - V OUT2 ) x R FB22 )
(V OUT1 - 0.9) x R FB21
EN2
ON/OFF
signal
SBD2
2. Channel 2 (Inverting)
CL2
RFB21
CFB21
VOUT2
Example )
When VOUT1 = 3.3V and VOUT2 = - 7.5V,
RFB21 = 350kΩ, RFB22 = 100kΩ by the equation below.
VOUT2 = (0.9 - VOUT1) x (RFB21 / RFB22) + 0.9
When the light load, CFB21=0.1μF or lower value can be used.
Therefore, when CFB21=0.027μF,
Time_ss2 = 5.0mS and VOUT2 = 95% of setting value
Withstand voltage of transistor
The voltage applied between the drain and source is the sum of VIN and VOUT 2.
Select a transistor with an absolute VDSS rating that is suitable for your operating conditions.
Example: The voltage applied across VDS of a transistor will be 20.0V if VIN = 5.0 V and VOUT 2 = -15.0 V.
Under this condition, a transistor with VDSS higher than 20.0V should be selected. (Use a transistor with VDSS that is 1.5
times the applied voltage or more, as a standard.)
10/50
XC9505
Series
■TEST CIRCUITS
Circuit ①
Circuit ④
Circuit ②
Circuit ⑤
Circuit ③
Circuit ⑥
11/50
XC9505 Series
■EXTERNAL COMPONENTS OF TEST CIRCUITS
Circuit ①
L1, L2:
SD1, SD2 :
CL1, CL2 :
CIN :
PNP Tr 1 :
PNP Tr 2 :
RFB :
CFB :
22μH (CDRH5D28, SUMIDA) : XC9505B092A
15μH (CDRH5D28, SUMIDA) : XC9505B093A
10μH (CDRH5D28, SUMIDA) : XC9505B095A
CRS02 (Schottky, TOSHIBA)
EC10QS06 (Schottky, NIHON INTER)
16MCE476MD2 (Tantalum, NIHON CHEMICON)
35MCE335MB x 3 (Tantalum, NIHON CHEMICON)
16MCE476MD2
2SA1213 (TOSHIBA)
2SA1213 (TOSHIBA)
Please use by the conditions as below.
RFB11 + RFB12≦1MΩ
RFB21 + RFB22≦1MΩ
RFB11 / RFB12 = (Setting Output Voltage / 0.9) - 1
VOUT2 = (0.9 - VOUT1) / (RFB21 / RFB22) + 0.9V
fzfb = 1 /(2 xπx CFB1 x RFB11) = 1kHz to 50kHz (12kHz usual)
fzfb = 1 /(2 xπx CFB2 x RFB21) = 1kHz to 50kHz (12kHz usual).
Circuit ③
L1 :
SD 1 :
CL1 :
CIN :
Pch MOSFET :
22μH (SUMIDA CDRH5D28)
MA2Q737 (Schottky, MATSUSHITA)
16MCE476MD2 (Tantalum, NIHONCHEMICON)
16MCE476MD2 (Tantalum, NIHONCHEMICON)
XP162A12A6P (TOREX)
Circuit ④
L1 :
SD 1 :
CL1 :
CIN :
Pch MOSFET :
22μH (CDRH5D28, SUMIDA) : XC9505B092A
15μH (CDRH5D28, SUMIDA) : XC9505B093A
10μH (CDRH5D28, SUMIDA) : XC9505B095A
MA2Q737 (Schottky, MATSUSHITA)
16MCE476MD2 (Tantalum, NIHONCHEMICON)
16MCE476MD2 (Tantalum, NIHONCHEMICON)
XP162A12A6P (TOREX)
Circuit ⑥
L2 :
SD 2 :
CL2 :
CIN :
Pch MOSFET :
12/50
22μH (CDRH5D28, SUMIDA) : XC9505B092A
15μH (CDRH5D28, SUMIDA) : XC9505B093A
10μH (CDRH5D28, SUMIDA) : XC9505B095A
MA2Q737 (Schottky, MATSUSHITA)
16MCE476MD2 (Tantalum, NIHONCHEMICON)
16MCE476MD2 (Tantalum, NIHONCHEMICON)
XP162A12A6P (TOREX)
XC9505
Series
■NOTES ON USE
1. Checking for Intermittent Oscillation
The XC9505 series is subject to intermittent oscillation in the proximity of the MAX. duty if the step-down ratio is low (e.g.,
from 4.2 V to 3.3 V) or a heavy load is applied where the duty ratio becomes high. Check waveforms at EXT under your
operating conditions. A remedy for this problem is to raise the inductance of coil L or increase the load capacitance CL.
2. PWM/PFM Automatic Switching
If PWM/PFM automatic switching control is selected and the step-down ratio is high (e.g., from 10.0 V to 1.0 V), the control
mode remains in PFM setting over the whole load range, since the duty ratio under continuous-duty condition is smaller
than the PFM duty ratio of the XC9505series. The output voltage's ripple voltage becomes substantially high under
heavy load conditions, with the XC9505 series appearing to be producing an abnormal oscillation. If this operation
becomes a concern, set pins PWM to High to set the control mode to PWM setting. For use under the above-mentioned
condition, measured data of PWM/PFM automatic switching control shown on the data sheets are available up to IOUT =
100 mA.
3. Ratings
Use the XC9505 series and peripheral components within the limits of their ratings.
13/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS
< 1 ch Step-Down DC/DC Controller >
(1) Output Voltage vs. Output Current
FOSC=180kHz, VOUT1=1.0V
FOSC=180kHz, VOUT1=1.0V
L1=47μH(CDRH6D38), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
1.2
PWM/PFM Switching Control
1.1
10V
Output Voltage1 V OUT1 (V)
Output Voltage1 V OUT1 (V)
L1=47μH(CDRH6D38), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
1.2
PWM Control
1.0
0.9
VIN=2.7V 3.3V 4.2V
5.0V 6.0V 8.0V
0.8
1.1
10V
1.0
0.9
4.2V 5.0V 6.0V 8.0V
VIN=2.7V 3.3V
0.8
0.7
0.7
0.1
1
10
100
Output Current1 IOUT1 (mA)
0.1
1000
PWM/PFM Switching Control
PWM Control
Output Voltage1 V OUT1 (V)
5.1
3.3
3.2
VIN=4.2V 5.0V 6.0V 8.0V 10V
3.1
3.0
0.1
1
10
100
5.0
4.9
VIN= 6.0V 8.0V 10V
4.8
4.7
1000
0.1
Output Current1 IOUT1 (mA)
10
100
1000
FOCS=300kHz, VOUT1=1.0V
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
1.2
1
Output Current1 IOUT1 (mA)
FOSC=300kHz, VOUT1=1.0V
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
1.2
PWM Control
PWM/PFM Switching Control
Output Voltage1 V OUT1 (V)
1.1
1.0
0.9
VIN=2.7V 3.3V 4.2V 5.0V
6.0V 8.0V 10V
0.8
0.7
1.1
5.0V
VIN=2.7V 3.3V
1.0
4.2V 6.0V 8.0V 10V
0.9
0.8
0.7
0.1
1
10
100
Output Current1 IOUT1 (mA)
1000
0.1
1
10
100
Output Current1 IOUT1 (mA)
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V,
CL=94μF (Tantalum) + 100μF (OS Capacitor)
14/50
1000
L1=47μH(CDRH6D38), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
5.2
3.4
Output Voltage1 V OUT1 (V)
100
FOSC=180kHz, VOUT1=5.0V
L1=47μH(CDRH6D38), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
PWM/PFM Switching Control
PWM Control
Output Voltage1 V OUT1 (V)
10
Output Current1 IOUT1 (mA)
FOSC=180kHz, VOUT1=3.3V
3.5
1
1000
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch Step-Down DC/DC Controller > (Continued)
(1) Output Voltage vs. Output Current (Continued)
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V
CL=94μF (Tantalum) + 100μF (OS Capacitor)
15/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch Step-Down DC/DC Controller > (Continued)
(1) Output Voltage vs. Output Current (Continued)
FOSC=300kHz, VOUT1=5.0V
5.2
PWM Control
5.1
VIN= 6.0V 8.0V
4.9
4.8
4.7
0.1
1
10
100
5.1
5.0
VIN= 6.0V 8.0V
4.9
4.8
4.7
1000
0.1
10
100
Output Current1 IOUT1 (mA)
FOSC=500kHz, VOUT1=1.0V
FOSC=500kHz, VOUT1=1.0V
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
PWM Control
PWM/PFM Switching Control
1.1
1.0
VIN=2.7V 3.3V 4.2V 5.0V
6.0V 8.0V 10V
0.9
0.8
VIN=2.7V 3.3V 4.2V 5.0V
1.1
1.0
0.9
6.0V 8.0V 10V
0.8
0.7
0.1
1
10
100
1000
0.1
Output Current1 IOUT1 (mA)
10
100
1000
FOSC=500kHz, VOUT1=3.3V
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
3.5
1
Output Current1 IOUT1 (mA)
FOSC=500kHz, VOUT1=3.3V
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
3.5
PWM Control
PWM/PFM Switching Control
Output Voltage1 V OUT1 (V)
3.4
3.3
VIN=4.2V 5.0V 6.0V 8.0V 10V
3.2
3.1
3.0
10V
3.4
3.3
VIN=4.2V 5.0V 6.0V 8.0V
3.2
3.1
3.0
0.1
1
10
100
Output Current1 IOUT1 (mA)
1000
0.1
1
10
100
Output Current1 IOUT1 (mA)
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V,
CL=94μ F (Tantalum) + 100μF (OS Capacitor)
16/50
1000
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
1.2
0.7
Output Voltage1 V OUT1 (V)
1
Output Current1 IOUT1 (mA)
Output Voltage1 V OUT1 (V)
Output Voltage1 V OUT1 (V)
PWM/PFM Switching Control
10.0V
5.0
1.2
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
10.0V
Output Voltage1 V OUT1 (V)
Output Voltage1 V OUT1 (V)
5.2
FOSC=300kHz, VOUT1=5.0V
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
1000
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch Step-Down DC/DC Controller > (Continued)
(1) Output Voltage vs. Output Current (Continued)
FOSC=500kHz, VOUT1=5.0V
Output Voltage1 V OUT1 (V)
5.2
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
PWM/PFM Switching Control
PWM Control
5.1
5.0
VIN= 6.0V 8.0V 10V
4.9
4.8
4.7
0.1
1
10
100
1000
Output Current1 IOUT1 (mA)
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V,
CL=94μF (Tantalum) + 100μF (OS Capacitor)
17/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch Step-Down DC/DC Controller > (Continued)
(2) Efficiency vs. Output Current
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V,
CL=94μF (Tantalum) + 100μF (OS Capacitor)
18/50
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch Step-Down DC/DC Controller > (Continued)
(2) Efficiency vs. Output Current (Continued)
FOSC=300kHz, VOUT1=1.8V
FOSC=300kHz, VOUT1=1.8V
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
80
VIN= 2.7V
Efficiency1 EFFI1 (%)
Efficiency1 EFFI1 (%)
80
60
3.3V
40
4.2V
20
10V
60
VIN=5.0V
8.0V
40
6.0V
20
0
0
0.1
1
10
100
1000
0.1
1
10
100
Output Current1 IOUT1 (mA)
Output Current1 IOUT1 (mA)
FOSC=300kHz, VOUT1=2.5V
FOSC=300kHz, VOUT1=2.5V
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
1000
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
80
VIN=2.7V
60
Efficiency1 EFFI1 (%)
Efficiency1 EFFI1 (%)
80
3.3V
40
4.2V
20
10V
60
VIN=5.0V
40
8.0V
6.0V
20
PWM/PFM Switching Control
PWM Control
0
0
0.1
1
10
100
1000
0.1
100
FOSC=300kHz, VOUT1=3.3V
FOSC=300kHz, VOUT1=5.0V
100
1000
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
80
10V
Efficiency1 EFFI1 (%)
Efficiency1 EFFI1 (%)
10
Output Current1 IOUT1 (mA)
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
80
1
Output Current1 IOUT1 (mA)
60
8.0V
40
6.0V
20
VIN=4.2V
5.0V
60
10V
40
8.0V
VIN=6.0V
20
0
0
0.1
1
10
100
Output Current1 IOUT1 (mA)
1000
0.1
1
10
100
1000
Output Current1 IOUT1 (mA)
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V,
CL=94μF (Tantalum) + 100μF (OS Capacitor)
19/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch Step-Down DC/DC Controller > (Continued)
(2) Efficiency vs. Output Current (Continued)
FOSC=500kHz, VOUT1=1.0V
100
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
80
Efficiency1 EFFI1 (%)
80
Efficiency1 EFFI1 (%)
FOSC=500kHz, VOUT1=1.0V
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
60
4.2V
40
3.3V
VIN=2.7V
20
VIN=5.0V
60
10V
40
8.0V
6.0V
20
0
0
0.1
1
10
100
0.1
1000
FOSC=500kHz, VOUT1=3.3V
PWM/PFM Switching Control
PWM Control
80
Efficiency1 EFFI1 (%)
Efficiency1 EFFI1 (%)
1000
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
10V
8.0V
60
6.0V
5.0V
40
VIN=4.2V
20
60
10V
40
8.0V
VIN=6.0V
20
0
0
0.1
1
10
100
Output Current1 IOUT1 (mA)
1000
0.1
1
10
100
Output Current1 IOUT1 (mA)
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V,
CL=94μF (Tantalum) + 100μF (OS Capacitor)
20/50
100
FOSC=500kHz, VOUT1=3.3V
PWM/PFM Switching Control
PWM Control
80
10
Output Current1 IOUT1 (mA)
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
1
Output Current1 IOUT1 (mA)
1000
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch Step-Down DC/DC Controller > (Continued)
(3) Ripple Voltage vs. Output Current
FOSC=180kHz, VOUT1=1.0V
FOSC=180kHz, VOUT1=1.0V
L1=47μH(CDRH6D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
L1=47μH(CDRH6D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
80
Ripple Voltage1 (mV)
Ripple Voltage1 (mV)
80
VIN=2.7V 3.3V 4.2V 5.0V
6.0V 8.0V 10V
60
40
60
VIN=2.7V
40
8.0V
3.3V
0
0
0.1
1
10
100
0.1
1000
1
100
1000
FOSC=180kHz, VOUT1=3.3V
FOSC=180kHz, VOUT1=3.3V
100
10
Output Current1 IOUT1 (mA)
Output Current1 IOUT1 (mA)
L1=47μH(CDRH6D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
L1=47μH(CDRH6D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM Control
PWM/PFM Switching Control
80
Ripple Voltage1 (mV)
80
Ripple Voltage1 (mV)
10V 5.0V 6.0V
20
20
60
10V
40
8.0V
VIN=4.2V 6.0V
20
5.0V
60
40
VIN=4.2V
5.0V
6.0V
8.0V
10V
20
0
0
0.1
1
10
100
0.1
1000
FOSC=180kHz, VOUT1=5.0V
10
100
1000
FOSC=180kHz, VOUT1=5.0V
L1=47μH(CDRH6D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
1
Output Current1 IOUT1 (mA)
Output Current1 IOUT1 (mA)
L1=47μH(CDRH6D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM Control
PWM/PFM Switching Control
80
80
Ripple Voltage1 (mV)
Ripple Voltage1 (mV)
4.2V
60
40
10V
8.0V
VIN=6.0V
20
60
40
VIN=6.0V
8.0V
10V
20
0
0
0.1
1
10
100
Output Current1 IOUT1 (mA)
1000
0.1
1
10
100
1000
Output Current1 IOUT1 (mA)
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V,
CL=94μF (Tantalum) + 100μF (OS Capacitor)
21/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch Step-Down DC/DC Controller > (Continued)
(3) Ripple Voltage vs. Output Current (Continued)
FOSC=300kHz, VOUT1=1.0V
FOSC=300kHz, VOUT1=1.0V
L1=22μH(CDRH5D28), CL1=94μF(Tantaum)
SD1:CMS02, Tr1:XP162A12A6P
100
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
80
60
Ripple Voltage1 (mV)
Ripple Voltage1 (mV)
80
VIN=2.7V 3.3V 5.0V 6.0V
40
8.0V 10V
4.2V
20
VIN=2.7V
60
6.0V 5.0V
40
1
10
100
1000
0.1
1
10
100
Output Current1 IOUT1 (mA)
Output Current1 IOUT1 (mA)
FOSC=300kHz, VOUT1=1.8V
FOSC=300kHz, VOUT1=1.8V
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
PWM Control
PWM/PFM Switching Control
80
60
Ripple Voltage1 (mV)
VIN=2.7V 3.3V 4.2V 5.0V
6.0V 8.0V 10V
40
60
5.0V 4.2V
10V 8.0V 6.0V
40
3.3V VIN=2.7V
20
20
0
0
0.1
1
10
100
0.1
1000
1
FOSC=300kHz, VOUT1=2.5V
100
1000
FOSC=300kHz, VOUT1=2.5V
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
10
Output Current1 IOUT1 (mA)
Output Current1 IOUT1 (mA)
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM Control
PWM/PFM Switching Control
80
80
Ripple Voltage1 (mV)
VIN=2.7V 3.3V 4.2V 5.0V
6.0V 8.0V 10V
60
40
20
60
VIN=2.7V
10V
40
8.0V 6.0V 5.0V
4.2V
3.3V
20
0
0
0.1
1
10
100
Output Current1 IOUT1 (mA)
1000
0.1
1
10
100
Output Current1 IOUT1 (mA)
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V,
CL=94μF (Tantalum) + 100μF (OS Capacitor)
22/50
1000
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
80
Ripple Voltage1 (mV)
8.0V 3.3V
0
0.1
Ripple Voltage1 (mV)
4.2V
20
0
100
10V
1000
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch Step-Down DC/DC Controller > (Continued)
(3) Ripple Voltage vs. Output Current (Continued)
FOSC=300kHz, VOUT1=3.3V
FOSC=300kHz, VOUT1=3.3V
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
80
VIN=4.2V 5.0V 6.0V
8.0V 10V
60
Ripple Voltage1 (mV)
Ripple Voltage1 (mV)
80
40
60
VIN=4.2V
20
20
0
0
0.1
100
1
10
100
0.1
1000
10
100
Output Current1 IOUT1 (mA)
FOSC=300kHz, VOUT1=5.0V
FOSC=300kHz, VOUT1=5.0V
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
1000
L1=22μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
80
Ripple Voltage1 (mV)
Ripple Voltage1 (mV)
1
Output Current1 IOUT1 (mA)
80
60
VIN=6.0V
40
8.0V
10V
60
40
VIN=6.0V
10.0V
8.0V
20
20
0
0
0.1
1
10
100
0.1
1000
1
100
1000
FOSC=500kHz, VOUT1=1.0V
FOSC=500kHz, VOUT1=1.0V
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
10
Output Current1 IOUT1 (mA)
Output Current1 IOUT1 (mA)
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
80
Ripple Voltage1 (mV)
80
Ripple Voltage1 (mV)
5.0V 6.0V 8.0V 10.0V
40
VIN=2.7V 3.3V 4.2V 5.0V
6.0V 8.0V 10V
60
40
60
VIN=2.7V
40
8.0V 10V 5.0V
6.0V
4.2V
3.3V
20
20
0
0
0.1
1
10
100
Output Current1 IOUT1 (mA)
1000
0.1
1
10
100
1000
Output Current1 IOUT1 (mA)
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V,
CL=94μF (Tantalum) + 100μF (OS Capacitor)
23/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch Step-Down DC/DC Controller > (Continued)
(3) Ripple Voltage vs. Output Current (Continued)
FOSC=500kHz, VOUT1=3.3V
100
FOSC=500kHz, VOUT1=3.3V
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
100
PWM Control
PWM/PFM Switching Control
80
Ripple Voltage1 (mV)
80
Ripple Voltage1 (mV)
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
60
8.0V 10V
6.0V
40
5.0V
VIN=4.2V
20
60
VIN=4.2V
5.0V
40
6.0V
8.0V
20
0
0
0.1
1
10
100
1000
Output Current1 IOUT1 (mA)
0.1
1
10
L1=10μH(CDRH5D28), CL1=94μF(Tantalum)
SD1:CMS02, Tr1:XP162A12A6P
PWM Control
Ripple Voltage1 (mV)
80
60
40
10V
8.0V
VIN=6.0V
20
0
0.1
1
10
100
1000
Output Current1 IOUT1 (mA)
* When setting VOUT1=1.0V, VIN=8.0V or 10.0V,
CL=94μF (Tantalum) + 100μF (OS Capacitor)
24/50
100
Output Current1 IOUT1 (mA)
FOSC=500kHz, VOUT1=5.0V
100
10V
1000
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller >
<Ceramic capacitor and compact inductor use>
(4) Output Voltage vs. Output Current
FOSC=180kHz, VOUT2= -7.5V
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(LLB2520), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
-7.3
L2=22μH(LLB2520), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
-9.6
PWM/PFM Switching Control
PWM Control
Output Voltage 2 VOUT2 (V)
Output Voltage 2 VOUT2 (V)
PWM/PFM Switching Control
PWM Control
-7.4
-7.5
-7.6
VIN=2.7V 3.3V 4.2V 5.0V
-7.7
-7.8
-9.8
-10.0
-10.2
VIN=2.7V 3.3V 4.2V 5.0V
-10.4
-10.6
0.1
1
10
Output Current 2 IOUT2 (mA)
0.1
1
10
Output Current 2 IOUT2 (mA)
FOSC=300kHz, VOUT2= -7.5V
L2=47μH(LLB2520), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
-7.3
Output Voltage 2 VOUT2 (V)
PWM/PFM Switching Control
PWM Control
-7.4
-7.5
-7.6
VIN=2.7V 3.3V 4.2V 5.0V
-7.7
-7.8
0.1
1
10
Output Current 2 IOUT2 (mA)
25/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(4) Output Voltage vs. Output Current (Continued)
<Ceramic capacitor use>
FOSC=180kHz, VOUT2= -7.5V
L2=100μH(CDRH4D18C), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
Output Voltage 2 VOUT2 (V)
-7.3
PWM/PFM Switching Control
PWM Control
-7.4
5.0V
4.2V
-7.5
-7.6
VIN=2.7V
3.3V
-7.7
-7.8
0.1
1
10
Output Current 2 IOUT2 (mA)
100
FOSC=180kHz, VOUT2= -7.5V
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(CDRH4D18C), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
-7.3
L2=15μH(CDRH4D18C), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
-9.6
PWM/PFM Switching Control
PWM Control
-7.4
Output Voltage 2 VOUT2 (V)
Output Voltage 2 VOUT2 (V)
PWM/PFM Switching Control
PWM Control
4.2V 5.0V
-7.5
-7.6
VIN=2.7V 3.3V
-7.7
-7.8
-10.0
-10.2
VIN=2.7V 3.3V 4.2V 5.0V
-10.4
-10.6
0.1
1
10
Output Current 2 IOUT2 (mA)
26/50
-9.8
100
0.1
1
10
Output Current 2 IOUT2 (mA)
100
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(4) Output Voltage vs. Output Current (Continued)
<Ceramic capacitor use>
FOSC=180kHz, VOUT2= -7.5V
-7.3
L2=22μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:MA2Q737, Tr2:XP162A12A6P
-9.6
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
-7.4
Output Voltage 2 VOUT2 (V)
Output Voltage 2 VOUT2 (V)
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:MA2Q737, Tr2:XP162A12A6P
4.2V 5.0V
-7.5
-7.6
VIN=2.7V 3.3V
-7.7
-7.8
-9.8
-10.0
-10.2
VIN=2.7V 3.3V 4.2V 5.0V
-10.4
-10.6
0.1
1
10
100
1000
0.1
Output Current 2 IOUT2 (mA)
FOSC=300kHz, VOUT2= -5.0V
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
5.0V
-5.0
-5.1
-7.3
Output Voltage 2 VOUT2 (V)
Output Voltage 2 VOUT2 (V)
PWM/PFM Switching Control
PWM Control
-4.9
VIN=2.7V 3.3V
-5.2
PWM/PFM Switching Control
PWM Control
-7.4
-7.5
-7.6
VIN=2.7V 3.3V
5.0V
-7.7
-7.8
-5.3
0.1
1
10
100
0.1
1000
FOSC=300kHz, VOUT2= -10.0V
10
100
1000
FOSC=300kHz, VOUT2= -15.0V
L2=15μ H(CDRH5D28), CL2=94μ F(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
-9.6
1
Output Current 2 IOUT2 (mA)
Output Current 2 IOUT2 (mA)
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
-14.6
PWM/PFM Switching Control
PWM Control
-9.8
Output Voltage 2 VOUT2 (V)
Output Voltage 2 VOUT2 (V)
1000
FOSC=300kHz, VOUT2= -7.5V
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
-4.8
1
10
100
Output Current 2 IOUT2 (mA)
-10.0
-10.2
VIN=2.7V 3.3V 5.0V
-10.4
-10.6
0.1
1
10
100
Output Current 2 IOUT2 (mA)
1000
PWM/PFM Switching Control
PWM Control
-14.8
5.0V
-15.0
VIN=2.7V 3.3V
-15.2
-15.4
-15.6
0.1
1
10
100
1000
Output Current 2 IOUT2 (mA)
27/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(5) Efficiency vs. Output Current
<Ceramic capacitor and compact inductor use>
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(CDRH5D28), CL2=94μF(Tantalum)
SD2: MA2Q737, Tr2:XP162A12A6P
L2=22μH(CDRH5D28), CL2=94μF(Tantalum)
SD2: MA2Q737, Tr2:XP162A12A6P
100
(%)
(%)
Efficiency 2: EFFI２
Efficiency 2: EFFI２
PWM/PFM Switching Control
PWM Control
80
60
5.0V
4.2V
40
3.3V
Vin=2.7V
20
0
0.1
Output Current 2: IOUT２
(mA)
100
(mA)
PWM/PFM Switching Control
PWM Control
Efficiency22:EFFI
2 (%)(%)
Efficiency
EFFI２
(%)
Efficiency2 EFFI 2 (%)
Efficiency 2: EFFI２
1000
L2=15μH(CDRH4D18C),
L2=15μH(CDRH4D18C),CL2=10μF(Ceramic)
CL2=10μF(ceramic)
SD2:CRS02,
SD2:CRS02,Tr2:XP152A12C0MR
Tr2:XP152A12C0MR
PWM/PFM Switching Control
PWM Control
80
4.2V
60
5.0V
3.3V
VIN=2.7V
20
0
80
5.0V
60
4.2V
3.3V
40
VIN=2.7V
20
0
0.1
1
10
Output
Current 2 IOUT2
(mA)
Output
Currentt2:
IOUT２
(mA)
28/50
100
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(CDRH4D18C),
L2=22μH(CDRH4D18C), CL2=10μF(Ceramic)
CL2=10μF(ceramic)
SD2:CRS02,
SD2:CRS02,Tr2:XP152A12C0MR
Tr2:XP152A12C0MR
40
10
Output Current 2: IOUT２
FOSC=180kHz, VOUT2= -7.5V
100
1
100
0.1
1
10
Output Current
2 IOUT2
(mA) (mA)
Output
Current
2: IOUT２
100
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(5) Efficiency vs. Output Current (Continued)
<Ceramic capacitor use>
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(CDRH5D28), CL2=94μF(Tantalum)
SD2: MA2Q737, Tr2:XP162A12A6P
100
Efficiency2 EFFI 2 (%)
PWM/PFM Switching Control
PWM Control
80
60
5.0V
4.2V
40
3.3V
Vin=2.7V
20
0
0.1
1
10
100
1000
Output Current 2 IOUT2 (mA)
FOSC=180kHz, VOUT2= -7.5V
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(CDRH4D18C), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
L2=15μH(CDRH4D18C), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
80
4.2V
60
Efficiency2 EFFI 2 (%)
Efficiency2 EFFI 2 (%)
80
5.0V
3.3V
40
VIN=2.7V
20
0
5.0V
60
4.2V
3.3V
40
VIN=2.7V
20
0
0.1
1
10
Output Current 2 IOUT2 (mA)
100
0.1
1
10
100
Output Current 2 IOUT2 (mA)
29/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(5) Efficiency vs. Output Current (Continued)
<Tantalum capacitor use>
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:MA2Q737, Tr2:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
Efficiency2 EFFI 2 (%)
80
60
5.0V
4.2V
40
3.3V
VIN=2.7V
20
0
0.1
1
10
100
1000
Output Current 2 IOUT2 (mA)
FOSC=300kHz, VOUT2= -5.0V
FOSC=300kHz, VOUT2= -7.5V
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
100
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
60
5.0V
3.3V
40
VIN=2.7V
20
5.0V
VIN=2.7V
60
40
20
0
0
0.1
1
10
100
1000
0.1
Output Current 2 IOUT2 (mA)
100
1000
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
80
Efficiency2 EFFI 2 (%)
80
Efficiency2 EFFI 2 (%)
10
FOSC=300kHz, VOUT2= -15.0V
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
100
1
Output Current 2 IOUT2 (mA)
FOSC=300kHz, VOUT2= -10.0V
60
5.0V
3.3V
40
VIN=2.7V
20
60
5.0V
40
3.3V
VIN=2.7V
20
0
0
0.1
1
10
100
Output Current 2 IOUT2 (mA)
30/50
3.3V
80
Efficiency2 EFFI 2 (%)
Efficiency2 EFFI 2 (%)
80
1000
0.1
1
10
100
Output Current 2 IOUT2 (mA)
1000
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
<Ceramic capacitor and compact inductor use>
(6) Ripple Voltage vs. Output Current
FOSC=180kHz, VOUT2= -7.5V
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(LLB2520), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
L2=22μH(LLB2520), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
80
Ripple Voltage2 (mV)
Ripple Voltage2 (mV)
80
60
VIN=2.7V
40
5.0V
4.2V 3.3V
20
60
40
4.2V
3.3V
5.0V
VIN=2.7V
20
0
0.1
1
10
Output Current 2 IOUT2 (mA)
0
0.1
1
10
Output Current 2 IOUT2 (mA)
FOSC=300kHz, VOUT2= -7.5V
L2=22μH(LLB2520), C L2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
PWM/PFM Switching Control
PWM Control
Ripple Voltage2 (mV)
80
VIN=2.7V
3.3V
5.0V
60
40
20
0
0.1
1
10
Output Current 2 IOUT2 (mA)
31/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(6) Ripple Voltage vs. Output Current (Continued)
<Ceramic capacitor use>
FOSC=180kHz, VOUT2= -7.5V
FOSC=180kHz, VOUT2= -10.0V
L2=100μH(CDRH4D18C), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
L2=100μH(CDRH4D18C), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
80
Ripple Voltage2 (mV)
Ripple Voltage2 (mV)
80
VIN=2.7V
3.3V
4.2V
5.0V
60
40
20
VIN=2.7V
3.3V
4.2V
5.0V
60
40
20
0
0
0.1
1
10
100
0.1
Output Current 2 IOUT2 (mA)
FOSC=180kHz, VOUT2= -7.5V
PWM/PFM Switching Control
PWM Control
80
60
Ripple Voltage2 (mV)
80
5.0V
VIN=2.7V
40
4.2V
20
5.0V
60
3.3V
VIN=2.7V
40
20
4.2V
3.3V
0
0
0.1
1
10
Output Current 2 IOUT2 (mA)
32/50
100
L2=15μH(CDRH4D18C), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
PWM/PFM Switching Control
PWM Control
Ripple Voltage2 (mV)
10
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(CDRH4D18C), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
1
Output Current 2 IOUT2 (mA)
100
0.1
1
10
Output Current 2 IOUT2 (mA)
100
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(6) Ripple Voltage vs. Output Current (Continued)
<Tantalum capacitor use>
FOSC=180kHz, VOUT2= -7.5V
FOSC=180kHz, VOUT2= -10.0V
L2=22μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:MA2Q737, Tr2:XP162A12A6P
100
L2=22μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:MA2Q737, Tr2:XP162A12A6P
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
80
60
Ripple Voltage2 (mV)
Ripple Voltage2 (mV)
80
VIN=2.7V
5.0V
40
4.2V
3.3V
60
40
3.3V 5.0V
20
20
0
0
VIN=2.7V
4.2V
PWM/PFM Switching Control
PWM Control
0.1
1
10
100
1000
0.1
Output Current 2 IOUT2 (mA)
FOSC=300kHz, VOUT2= -5.0V
1000
PWM/PFM Switching Control
PWM Control
80
80
60
Ripple Voltage2 (mV)
Ripple Voltage2 (mV)
100
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
100
PWM/PFM Switching Control
PWM Control
5.0V
40
VIN=2.7V
3.3V
60
5.0V
40
3.3V
VIN=2.7V
20
20
0
0
0.1
1
10
100
0.1
1000
FOSC=300kHz, VOUT2= -10.0V
10
100
1000
FOSC=180kHz, VOUT2= -15.0V
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
100
1
Output Current 2 IOUT2 (mA)
Output Current 2 IOUT2 (mA)
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
80
Ripple Voltage2 (mV)
80
Ripple Voltage2 (mV)
10
FOSC=300kHz, VOUT2= -7.5V
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:CRS02, Tr2:XP152A12C0MR
100
1
Output Current 2 IOUT2 (mA)
60
40
3.3V
5.0V
VIN=2.7V
20
60
5.0V
40
VIN=2.7V
3.3V
20
0
0
0.1
1
10
100
Output Current 2 IOUT2 (mA)
1000
0.1
1
10
100
1000
Output Current 2 IOUT2 (mA)
33/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(7) Breakdown of Output Voltage
FOSC=300kHz,VIN= 3.3V
FOSC=300kHz,VIN= 3.3V
L2=47μH(LLB2520), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
L2=47μH(LLB2520), CL2=10μF(ceramic)
SD2:CRS02, Tr2:XP152A12C0MR
100
PWM/PFM Switching Control
PWM Control
PWM/PFM Switching Control
PWM Control
80
-10.0V
-7.5V
Ripple Voltage2 (mV)
Efficiency2 EFFI 2 (%)
80
60
40
-15.0V
VOUT= -5.0V
20
VOUT= - 5.0V
-7.5V
-10.0V
-15.0V
60
40
20
0
0
0.1
1
10
0.1
Output Current 2 IOUT2 (mA)
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:MA2Q737,Tr2:XP162A12A6P
-7.5V
-10.0V
40
-15.0V
Ripple Voltage2 (mV)
60
-7.5V
-10.0V
60
-15.0V
40
20
20
0
0
0.1
1
10
100
0.1
1000
L2=10μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:MA2Q737,Tr2:XP162A12A6P
1000
VOUT=-5.0V
PWM Control
60
-7.5V
-10.0V
-15.0V
Ripple Voltage2 (mV)
80
Efficiency2 EFFI 2 (%)
100
80
40
100
L2=10μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:MA2Q737, Tr2:XP162A12A6P
VOUT=-5.0V
PWM Control
10
FOSC=500kHz,VIN= 3.3V
FOSC=500kHz,VIN= 3.3V
100
1
Output Current 2 IOUT2 (mA)
Output Current 2 IOUT2 (mA)
-7.5V
60
-10.0V
-15.0V
40
20
20
0
0
0.1
1
10
100
Output Current 2 IOUT2 (mA)
34/50
VOUT=-5.0V
PWM Control
80
80
Efficiency2 EFFI 2 (%)
L2=15μH(CDRH5D28), CL2=94μF(Tantalum)
SD2:MA2Q737, Tr2:XP162A12A6P
100
VOUT=-5.0V
PWM Control
10
FOSC=300kHz,VIN= 3.3V
FOSC=300kHz,VIN= 3.3V
100
1
Output Current 2 IOUT2 (mA)
1000
0.1
1
10
100
Output Current 2 IOUT2 (mA)
1000
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(8) Breakdown of Coil Inductance Value
FOSC=300kHz,VIN3.3V,Output2= -7.5V
FOSC=300kHz,VIN=3.3V,Output2= -7.5V
L2=CDRH5D28, CL2=94μF(Tantalum)
SD2:MA2Q737, Tr2:XP162A12C0MR
100
L2=CDRH5D28, CL2=94μ F(Tantalum)
SD2:MA2Q737, Tr2:XP162A12A6P
100
PWM Control
100uH
80
Ripple Voltage2 (mV)
Efficiency2 EFFI 2 (%)
PWM Control
80
L=15uH
60
22uH
40
100uH
20
60
47uH
22uH
40
L=15uH
20
47uH
0
0
0.1
1
10
100
Output Current 2 IOUT2 (mA)
1000
1
10
100
1000
Output Current 2 IOUT2 (mA)
35/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(9) Supply Current 1 vs. Supply Voltage
(10) Supply Current 1-1 vs. Supply Voltage
(11) Supply Current 1-2 vs. Supply Voltage
(12) Supply Current 1-3 vs. Supply Voltage
(13) Supply Current 1-4 vs. Supply Voltage
(14) Supply Current 2 vs. Supply Voltage
36/50
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(15) Stand-by Current vs. Supply Voltage
(16) Oscillation Frequency vs. Supply Voltage
(17) PWM1, 2 'H''L' Voltage vs. Supply Voltage
(18) EN1, 2 'H''L' Voltage vs. Supply Voltage
(19) MAX. Duty Ratio 2 vs. Supply Voltage
(20) Soft-start Time vs. Supply Voltage
37/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(21) EXT1, 2 High ON Resistance vs. Supply Voltage
(22) EXT1, 2 Low ON Resistance vs. Supply Voltage
XC9505B092 (180kHz)
XC9505B092 (180kHz)
50
Topr=85℃
25℃
- 40℃
40
EXT1, 2 L ON Resistance (Ω)
EXT1, 2 H ON Resistance (Ω)
50
30
20
10
Topr=85℃
25℃
- 40℃
40
30
20
10
0
0
0
2
4
6
8
0
10
(23) Output Voltage vs. Ambient Temperature
10
40
PFM Duty Ratio1, 2 (%)
Output Voltage VOUT (V)
3.3
3.2
VIN=5.0V
IOUT=200mA
Topr=85℃
25℃
- 40℃
35
30
25
20
-20
10
40
70
Ambient Temterature Ta ( ℃)
38/50
8
XC9505B092(180kHz)
L=22uH(CDRH5D28), CL=94uF(Tantalum)
Tr:XP162A12A6, SD:CMS02
3.4
3.0
-50
6
(24) PFM Duty Ratio1, 2 vs. Supply Voltage
XC9505B093(300kHz)
3.1
4
Supply Voltage VDD (V)
Supply Voltage VDD (V)
3.5
2
100
0
2
4
6
8
Supply Voltage VDD (V)
10
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch. Step-Up DC/DC Controller >
(25) Load Transient Response
< VOUT1 = 3.3 V, VIN = 5.0V, IOUT1 = 100μA ⇔ 300mA >
● PWM Control
FOSC = 300kHz, VOUT1 = 3.3V
VIN = 5.0V, IOUT1 = 300mA→100μA
FOSC = 300kHz, VOUT1 = 3.3V
VIN = 5.0V, IOUT1 = 100μA→300mA
CH1
3.3V
CH1
3.3V
300mA
CH2
100μA
300mA
100μA
CH2
200μsec/div
10msec/div
CH1: VOUT1, AC-COUPLED, 100mV/div
CH2: IOUT1, 150mA/div
CH1: VOUT1, AC-COUPLED, 50mV/div
CH2: IOUT1, 150mA/div
● PWM/PFM Switching Control
FOSC=300kHz, VOUT1 =3.3V
VIN=5.0V, IOUT1 =100μA→300mA
CH1
FOSC=300kHz, VOUT1=3.3V
VIN=5.0V, IOUT1=300mA→100μA
3.3V
CH1
3.3V
300mA
300mA
100μA
CH2
200μsec/div
CH1: VOUT1, AC-COUPLED, 100mV/div
CH2:IOUT1, 150mA/div
100μA
CH2
10msec/div
CH1: VOUT1, AC-COUPLED, 100mV/div
CH2: IOUT1, 150mA/div
39/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch. Step-Up DC/DC Controller > (Continued)
(25) Load Transient Response (Continued)
< VOUT1 = 3.3V, VIN = 5.0V, IOUT1 =10mA ⇔ 300mA >
● PWM Control
FOSC=300kHz, VOUT1 =3.3V
VIN=5.0V, IOUT1=10mA→300mA
CH1
FOSC=300kHz, VOUT1=3.3V
VIN=5.0V, IOUT1=300mA→10mA
3.3V
3.3V
CH1
300mA
300mA
CH2
10mA
CH2
200μsec/div
10mA
400μsec/div
CH1: VOUT1, AC-COUPLED, 50mV/div
CH2: IOUT1, 150mA/div
CH1: VOUT1, AC-COUPLED, 50mV/div
CH2: IOUT1, 150mA/div
● PWM/PFM Switching Control
FOSC=300kHz, VOUT1 =3.3V
VIN=5.0V, IOUT1 =10mA→300mA
CH1
FOSC=300kHz, VOUT1=3.3V
VIN=5.0V, IOUT1 =300mA→10mA
3.3V
3.3V
CH1
300mA
CH2
10mA
200μsec/div
CH1: VOUT1, AC-COUPLED, 100mV/div
CH2: IOUT1, 150mA/div
40/50
300mA
CH2
10mA
200μsec/div
CH1: VOUT1, AC-COUPLED, 50mV/div
CH2: IOUT1, 150mA/div
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch. Step-Up DC/DC Controller > (Continued)
(25) Load Transient Response (Continued)
< VOUT1 = 0.9V, VIN = 3.3V, IOUT1 =100μA ⇔ 300mA >
● PWM Control
FOSC=300kHz, VOUT1 =0.9V
VIN=3.3V, IOUT1 =100μA→300mA
CH1
FOSC=300kHz, VOUT1 =0.9V
VIN=3.3V, IOUT1 =300mA→100μA
0.9V
0.9V
CH1
300mA
CH2
100μA
300mA
CH2
100μA
4msec/div
200μsec/div
CH1: VOUT1, AC-COUPLED, 20mV/div
CH2: IOUT1, 150mA/div
CH1: VOUT1, AC-COUPLED, 20mV/div
CH2: IOUT1, 150mA/div
● PWM/PFM Switching Control
FOSC=300kHz, VOUT1 =0.9V
VIN=3.3V, IOUT1,=100μA→300mA
CH1
FOSC=300kHz, VOUT1=0.9V
VIN=3.3V, IOUT1 =300mA→100μA
0.9V
CH1
0.9V
300mA
CH2
100μA
200μsec/div
CH1: VOUT1, AC-COUPLED, 20mV/div
CH2: IOUT1, 150mA/div
300mA
CH2
100μA
4msec/div
CH1: VOUT1, AC-COUPLED, 20mV/div
CH2: IOUT1, 150mA/div
41/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch. Step-Up DC/DC Controller > (Continued)
(25) Load Transient Response (Continued)
< VOUT1 = 0.9V, VIN = 3.3V, IOUT1 =10mA ⇔ 300mA >
● PWM Control
FOSC=300kHz, VOUT1 =0.9V
VIN=3.3V, IOUT1=10mA→300mA
CH1
FOSC=300kHz, VOUT1=0.9V
VIN=3.3V, IOUT1=300mA→10mA
0.9V
0.9V
CH1
300mA
CH2
10mA
300mA
10mA
CH2
100μsec/div
CH1: VOUT1, AC-COUPLED, 20mV/div
CH2: IOUT1, 150mA/div
100μsec/div
CH1: VOUT1, AC-COUPLED, 20mV/div
CH2: IOUT1, 150mA/div
● PWM/PFM Switching Control
FOSC=300kHz, VOUT1=0.9V
VIN=3.3V, IOUT1 =300mA→10mA
FOSC=300kHz, VOUT1 =0.9V
VIN=3.3V, IOUT1 =10mA→300mA
CH1
0.9V
0.9V
CH1
300mA
10mA
CH2
200μsec/div
CH1: VOUT1, AC-COUPLED, 20mV/div
CH2: IOUT1, 150mA/div
42/50
300mA
10mA
CH2
200μsec/div
CH1: VOUT1, AC-COUPLED, 20mV/div
CH2: IOUT1, 150mA/div
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 1 ch. Step-Up DC/DC Controller > (Continued)
(25) Load Transient Response (Continued)
< PWM Control ⇔ PWM / PFM Switching Control >
FOSC=300kHz, VOUT1 =3.3V
VIN=5.0V, IOUT1=5mA, PWM1 ’L’→’H’
CH1
FOSC=300kHz, VOUT1 =3.3V
VIN=5.0V, IOUT1=5A, PWM1 ’H→’L’
3.3V
CH1
3.3V
0.65V
CH2
0.65V
0V
CH2
0V
200μsec/div
400μsec/div
CH1: VOUT1, AC-COUPLED, 20mV/div
CH2: PWM1, 0.5V/div
CH1: VOUT1, AC-COUPLED, 10mV/div
CH2: PWM1, 0.5V/div
< Soft-Start Wave Form >
FOSC=300kHz, VOUT1 =3.3V
VIN=5.0V, IOUT1=300mA
N1 ’L’→’H’, CIN=47μF
FOSC=300kHz, VOUT1=3.3V
VIN=5.0V, IOUT1=100mA
EN1 ’L’→’H’, CIN=47μF
3.3V
CH1
3.3V
CH1
200mA
75mA
CH2
CH2
0.65V
CH3
4ms/div
0.65V
CH3
4ms/div
CH1: VOUT1, 2.0V/div
CH2: IIN1, 50mA/div
CH3: EN1, 0.5V/div
CH1: VOUT1, 2.0V/div
CH2: IIN1, 100mA/div
CH3: EN1, 0.5V/div
* EN2=GND
43/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller >
(25) Load Transient Response (Continued)
< VOUT2 = - 7.5V, VIN = 3.3V, IOUT2 = - 100μA ⇔ - 50mA >
(Tantalum capacitor use)
● PWM Control
FOSC=180kHz, VOUT2 =-7.5V
VIN=3.3V, IOUT2=100μA→-50mA
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-50mA→-100μA
-7.5V
CH1
CH1
-7.5V
-50mA
-50mA
CH2
-100μA
-100μA
CH2
200μsec/div
10msec/div
CH1: VOUT2, AC-COUPLED, 50mV/div
CH2: IOUT2, 50mA/div
CH1: VOUT2, AC-COUPLED, 50mV/div
CH2: IOUT2, 50mA/div
● PWM/PFM Switching Control
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-50mA→-100μA
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-100μA→-50mA
-7.5V
CH1
-7.5V
CH1
-50mA
-100μA
CH2
10msec/div
CH1: VOUT2, AC-COUPLED, 50mV/div
CH2: IOUT2, 50mA/div
44/50
-50mA
-100μA
CH2
200μsec/div
CH1: VOUT2, AC-COUPLED, 50mV/div
CH2: IOUT2, 50mA/div
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(25) Load Transient Response (Continued)
< VOUT2 = - 7.5V, VIN = 3.3V, IOUT2 = - 100μA ⇔ - 20mA >
(Ceramic capacitor use when coil current is discontinued.)
● PWM Control
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-100μA→-20mA
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-20mA→-100μA
-7.5V
CH1
-7.5V
CH1
-20mA
-20mA
-100μA
CH2
CH2
-100μA
200μsec/div
1msec/div
CH1: VOUT2, AC-COUPLED, 20mV/div
CH2: IOUT2, 10mA/div
CH1: VOUT2, AC-COUPLED, 20mV/div
CH2: IOUT2, 10mA/div
● PWM/PFM Switching Control
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-100μA→-20mA
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-20mA→-100μA
-7.5V
CH1
-7.5V
CH1
-20mA
-20mA
-100μA
CH2
2msec/div
CH1: VOUT2, AC-COUPLED, 50mV/div
CH2: IOUT2, 10mA/div
CH2
-100μA
200μsec/div
CH1: VOUT2, AC-COUPLED, 50mV/div
CH2: IOUT2, 10mA/div
45/50
XC9505 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(25) Load Transient Response (Continued)
< VOUT2 = - 7.5V, VIN = 3.3V, IOUT2 = - 1mA ⇔ - 20mA >
● PWM Control
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-1mA→-20mA
CH1
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-20mA→-1mA
-7.5V
-7.5V
CH1
-20mA
CH2
-1mA
-20mA
-1mA
CH2
200μsec/div
200μsec/div
CH1: VOUT2, AC-COUPLED, 20mV/div
CH2: IOUT2, 10mA/div
CH1: VOUT2, AC-COUPLED, 20mV/div
CH2: IOUT2, 10mA/div
● PWM/PFM Switching Control
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-20mA→-1mA
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2=-1mA→ -20mA
CH1
-7.5V
CH1
-7.5V
-20mA
-20mA
CH2
400μsec/div
CH1: VOUT2, AC-COUPLED, 20mV/div
CH2: IOUT2, 10mA/div
46/50
-1mA
-1mA
CH2
400μsec/div
CH1: VOUT2, AC-COUPLED, 20mV/div
CH2: IOUT2, 10mA/div
XC9505
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
< 2 ch. Inverting DC/DC Controller > (Continued)
(25) Load Transient Response (Continued)
< PWM Control
PWM / PFM Switching Control >
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2= - 5mA, PWM2 ’L’→ ‘H’
-7.5V
CH1
FOSC=180kHz, VOUT2=-7.5V
VIN=3.3V, IOUT2= - 5mA PWM2 ’H’→ ‘L’
CH1
-7.5V
0.65V
CH2
0V
200μsec/div
CH1: VOUT2, AC-COUPLED, 20mV/div
CH2: PWM2, 0.5V/div
0.65V
CH2
0V
200μsec/div
CH1: VOUT2, AC-COUPLED, 20mV/div
CH2: PWM2, 0.5V/div
47/50
XC9505 Series
■PACKAGING INFORMATION
●MSOP-10
●USP-10
* Soldering fillet surface is not formed
because the sides of the pins are not
plated.
●USP-10 Recommended Pattern Layout
2.3
48/50
●USP-10 Recommended Metal Mask Design
XC9505
Series
■MARKING RULE
① Represents product series
●MSOP-10, USP-10
10 9 8 7 6
MARK
PRODUCT SERIES
5
XC9505B09xxx
② Represents type of DC/DC controller
① ②③
④ ⑤⑥
MARK
PRODUCT SERIES
B
XC9505B09xxx
③,④ Represents FB voltage
MARK
1 2 3 4 5
MSOP-10
(TOP-VIEW)
USP-10
(TOP-VIEW)
③
④
0
9
VOLTAGE (V)
PRODUCT SERIES
0.9
XC9505B09xxx
⑤ Represents oscillation frequency
2
OSCILLATION FREQUENCY
(kHz)
180
3
300
XC9505B093xx
5
500
XC9505B095xx
MARK
PRODUCT SERIES
XC9505B092xx
⑥ Represents production lot number
0 to 9, A to Z repeated (G, I, J, O, Q, W excepted)
Note: No character inversion used.
49/50
XC9505 Series
1. The products and product specifications contained herein are subject to change without
notice to improve performance characteristics.
Consult us, or our representatives
before use, to confirm that the information in this catalog is up to date.
2. We assume no responsibility for any infringement of patents, patent rights, or other
rights arising from the use of any information and circuitry in this catalog.
3. Please ensure suitable shipping controls (including fail-safe designs and aging
protection) are in force for equipment employing products listed in this catalog.
4. The products in this catalog are not developed, designed, or approved for use with such
equipment whose failure of malfunction can be reasonably expected to directly
endanger the life of, or cause significant injury to, the user.
(e.g. Atomic energy; aerospace; transport; combustion and associated safety
equipment thereof.)
5. Please use the products listed in this catalog within the specified ranges.
Should you wish to use the products under conditions exceeding the specifications,
please consult us or our representatives.
6. We assume no responsibility for damage or loss due to abnormal use.
7. All rights reserved. No part of this catalog may be copied or reproduced without the
prior permission of Torex Semiconductor Ltd.
50/50