TOREX XC9103

XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
June 25, 2003 Ver. 6
! Ceramic Capacitors Compatible
! Input Voltage Range: 0.9V~10.0V
! Output Voltage Externally Set-up
! Oscillation Frequency: 300kHz, 180kHz (±15%)
! PWM Control (XC9103)
PWM/PFM Automatic Switching Control (XC9104)
PWM/PFM Manual Switching Control (XC9105)
! SOT-25 / USP-6B Package
" APPLICATIONS
" GENERAL DESCRIPTION
" FEATURES
# PDAs
# Cellular Phones
# Palmtop Computers
# Portable Audio Systems
# Various Multi-function Power Supplies
The XC9103/9104/9105 series are PWM, PWM/PFM auto switching
/manual switching controlled multi-functional step-up DC/DC converter
controllers.
Output will be stable no matter which load capacitors are used but should a
low ESR capacitor be used, RSENSE of about 0.1Ω will be required and
phase compensation will be achieved. This makes the use of ceramic
capacitors much easier and allows for lower output ripple and reduced PCB
area requirements. Tantalum and electrolytic capacitors can also be used,
in which case, RSENSE becomes unnecessary.
With 0.9V of standard voltage supply internal, and using externally
connected components, output voltage can be set up freely within a range
of 1.5V to 30V. With 300kHz or 180kHz frequencies, the size of the
external components can be reduced. Oscillation frequencies of 100kHz
and 500kHz are also available as custom-designed products.
The XC9103 series are PWM controlled. Control switches from PWM
to PFM during light loads with the XC9104 and the series is highly
efficient from light loads to large output currents. By using external signals,
control of the XC9105 can be alternated between PWM and
PWM/PFM automatic switching and so, control suited to the
application can be selected.
Input Voltage Range:
0.9V ~ 10V
Power Supply Voltage Range:
1.8V ~ 10V
Output Voltage Range:
1.5V ~ 30V
Set up freely with a standard
voltage supply of 0.9V (±2.0%) &
external components
Oscillation Frequency:
300, 180kHz ±15%
100, 500kHz available as semi-custom
Output Current:
more than 400mA
(VIN=1.8V, VOUT=3.3V)
Controls:
PWM (XC9103)
PWM/PFM auto-switching (XC9104)
PWM/PFM manual switching (XC9105)
High Efficiency:
A current limiter circuit is built in to the IC (except with the 100kHz and
500kHz version) and monitors the ripple voltage on the FB pin. Operation
is shut down when the ripple voltage is more than 250mV(180kHz version).
The operations of the IC can be returned to normal with a toggle of the CE
pin or by turning the power supply back on.
85% (TYP.)
Stand-by Current:
ISTB=1.0µA (MAX.)
Load Capacitors:
Low ESR capacitors compatible
Current Limiter Function:
Operates when ripple voltage
=250mV (180kHz version)
Also available without current limiter
(100kHz and 500kHz types are
available only without current limiter)
SOT-25 / USP-6B
Packages :
" TYPICAL APPLICATION CIRCUIT
" TYPICAL PERFORMANCE CHARACTERISTICS
XC9105D093MR
VOUT=3.3V, CL=20uF
When PWM/PFM Automatic Switching
Tr: XP161A1355PR
100
RSENSE:100m Ω
for Ceramic CL
1.8V
L: 10µH
SD: MA737
IOUT=400mA
RFB1:
120k Ω
1
5
2
Ceramic CL
10µF for 200mA
10µFx2 for
400mA
3
CE
(CE/PWM)
Efficiency EFFI (%)
VOUT=3.3V
80
VIN
0.9V~
CFB: 47pF
RFB2:
45k Ω
2.7V
Nch Power
MOS FET
XP161A1355
4
60
1.2V
40
VIN=0.9V
1.5V
20
0
0.1
1
10
100
Output Current IOUT (mA)
1000
Semiconductor Ltd.
1
XC9103/04/05 Series
Ceramic Cap. Compatible
" PIN CONIGURATION
" PIN ASSIGNMENT
PIN NUMBER
SOT-25 USP-6B
5
1
4
2
Step-Up DC/DC Converters
1
6
2
5
3
4
1
2
3
USP-6B
(TOP VIEW)
SOT-25
(TOP VIEW)
PIN
NAME
FUNCTION
FB
Output Resistor Connection
6
2
3
4
4
5
-
3
1
5
VDD
Supply Voltage
CE
Chip Enable (Operates in "H" level)
Serves as both PWM/PFM switching pin
(/PWM) and CE pin for XC9105
CE
GND
Ground
EXT
External Transistor Connection
NC
No Connection
[SOT-23-5]
" ORDERING INFORMATION
XC9103123456
XC9104123456
XC9104 Series: PWM/PFM automatic switching control
XC9103 Series: PWM Control
1
2
3
4
(Same as XC9103 Series)
B
With Current Limiter
D
Without Current Limiter
(D type : 100kHz, 500kHz Only)
09
FB Voltage
3
Oscillation Frequency:
XC9105123456
XC9105 Series: PWM/PFM manual switching control
(Same as XC9103 Series)
300kHz
1
100kHz
2
180kHz
5
5
M
6
R
D
L
500kHz (D type only)
Package:
SOT-25 (1 reel = 3000 pcs.)
USP-6B (1 reel = 3000 pcs.)
Embossed Tape:
Standard Feed
Reverse Feed
" PACKAGING INFORMATION
$ SOT-25 (SOT-23-5)
$ USP-6B
2.0 + 0.15
(0.45) 0.5+0.1
3
5
4
O
45
(0.27)
2
A’
45 O
6
(0.27)
(
1.8+0.15
1
AAA
AAA
0.45)
1
A
(0.27)
φ
(0.05)
(0.45) (0.45)
O
+0.01
(0.05) -0.005
0.005+0.002
45
(0.65)+0.15
-0.05
(0.125)
45 O
1
6
1
1
1.0+0.1
0.25+0.1
2
1
.
0.5+0.1 0.5+0.1
5
1
1.6+0.15
4
2
00.1+0.03
3
1
0.2+0.05
5-0.2+0.05
0.7+0.03
0.25+0.1
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
" ABSOLUTE MAXIMUM RATINGS
Ta = 25OC
PARAMETER
SYMBOL
RATINGS
VDD pin Voltage
VDD
-0.3 ~ 12
UNITS
V
FB pin Voltage
FB
-0.3 ~ 12
V
V
CE pin Voltage
VCE
-0.3 ~ 12
EXT pin Voltage
VEXT
-0.3 ~ VDD + 0.3
V
EXT pin Current
IEXT/
±100
mA
SOT-25
150
USP-6B
100
Pd
Power Dissipation
mW
Operating Ambient Temperature
Topr
-40 ~ +85
O
C
Storage Temperature
Tstg
-40 ~ +125
O
C
" BLOCK DIAGRAM
FB
Current
Ripple Detect
and FB
Phase
Compensation
VDD
PWM
Comparator
Error Amp.
Vref with
Soft Start,
CE
PWM/PFM
Controller
Buffer,
Driver
Ramp Wave
Generator,
OSC
EXT
GND
CE(/PWM)
Note:
FB, CE : CMOS INPUT
EXT : CMOS OUTPUT
3
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
" ELECTRICAL CHARACTERISTICS
XC9103B092MR, XC9104B092MR, XC9105B092MR
XC9103D092MR, XC9104D092MR, XC9105D092MR
PARAMETER
SYMBOL
Output Voltage
VOUT
Output Voltage Range
VOUTSET
Ta=25OC
(FOSC=180 (kHz)
CONDITIONS
VIN=VOUTSET× 0.6, VDD=3.3V
MIN.
TYP.
MAX.
UNITS
CIRCUIT
3.234
3.300
3.366
V
1
1.5
-
30.0
V
2
0.882
0.900
0.918
V
1.8
-
10
V
4
-
-
-
0.9
V
3
-
-
0.8
V
4
-
-
0.7
V
3
IOUT=10mA, Using 2SD1628
*1
FB Control Voltage
VFB
Power Supply Voltage Range
VDD
Operation Start Voltage
VST1
Recommended Circuit using 2SD1628,
IOUT=1.0mA
*1
Oscillation Start Voltage
VST2
No external connections
CE connected to VDD, Voltage applied, FB=0V
Operation Holding Voltage
VHLD
Recommended Circuit using 2SD1628,
IOUT=1.0mA
Supply Current 1
IDD1
Same as VST2, VDD=3.300V
-
45
64
µA
Supply Current 2
IDD2
Same as IDD1, FB=1.2V
-
17
24
µA
Stand-by Current
ISTB
Same as IDD1, CE=0V
-
-
1.0
µA
Oscillation Frequency
FOSC
Same as IDD1
153
180
207
kHz
Maximum Duty Ratio
MAXDTY
Same as IDD1
75
81
87
%
PWM Duty Ratio
PFMDTY
20
28
36
%
4
4
5
4
4
1
170
250
330
mV
6
%
1
1
5
5
1
1
4
4
5
5
5
5
No Load
(XC9104B/D, 9105B/D)
Step input to FB ( Pulse width:2.0µS or more)
*3
Overcurrent SENSE Voltage
VLMT
EXT = Low level voltage
Efficiency
EFFI
Recommended Circuit using XP161A1355
(XC9103B, 9104B, 9105B)
85
Soft-start Time
TSS
5.0
10.0
20.0
mS
CE "High" Voltage
VCEH
Same as IDD1
0.65
-
-
V
CE "Low" Voltage
VCEL
Same as IDD1
-
-
0.20
V
*2
PWM "High" Voltage
VPWMH
IOUT=1.0mA
(XC9105B/D)
VDD - 0.2
-
*2
PWM "Low" Voltage
VPWML
IOUT=1.0mA
(XC9105B/D)
-
EXT "High" ON Resistance
REXTH
Same as IDD1, VEXT=VOUT-0.4V
-
EXT "Low" ON Resistance
REXTL
Same as IDD1, VEXT=0.4V
CE "High" Current
ICEH
CE "Low" Current
ICEL
FB "High" Current
FB "Low" Current
V
VDD - 1.0
V
24
36
Ω
-
16
24
Ω
Same as IDD2, CE=VDD
-
-
0.1
µA
Same as IDD2, CE=0V
-
-
-0.1
µA
IFBH
Same as IDD2, FB=VDD
-
-
0.1
µA
IFBL
Same as IDD2, FB=0V
-
-
-0.1
µA
Test Conditions: Unless otherwise stated, CL: ceramic capacitor, recommended MOS FET should be connected.
VOUT=3.30 (V), VIN=2.00 (V), IOUT=170 (mA)
" NOTES
*1
Although the IC starts step-up operations from a VDD of 0.8V, the output voltage and oscillation frequency are stabilized at
VDD ≥ 1.8V. Therefore, a VDD of more than 1.8V is recommended when VDD is supplied from VIN or other power sources.
*2
With the XC9105 series, the CE pin also serves as a PWM/PFM switching pin. In operation, PWM control is selected when the voltage at the CE pin is
more than VDD -0.2V. On the other hand, PWM/PFM automatic switching control at a duty = 25% is selected when the voltage at the CE pin is less than
VDD -1.0V and more than VCEH.
*3
The overcurrent limit circuit of this IC is designed to monitor the ripple voltage so please select your external components carefully to prevent VLMT
being reached under low temperature conditions as well as normal operating conditions. Following current limiter circuit operations, which in turn causes
the IC's operations to stop, the operations of the IC can be returned to normal with a toggle of the CE pin or by turning the power supply back on.
4
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
" ELECTRICAL CHARACTERISTICS (Continued)
XC9103B093MR, XC9104B093MR, XC9105B093MR
XC9103D093MR, XC9104D093MR, XC9105D093MR
PARAMETER
SYMBOL
Output Voltage
VOUT
Output Voltage Range
VOUTSET
Ta=25OC
(FOSC=300 (kHz)
CONDITIONS
VIN=VOUTSET× 0.6, VDD=3.3V
MIN.
TYP.
MAX.
UNITS
CIRCUIT
3.234
3.300
3.366
V
1
1.5
-
30.0
V
2
0.882
0.900
0.918
V
1.8
-
10
V
4
-
-
-
0.9
V
3
-
-
0.8
V
4
-
-
0.7
V
3
IOUT=10mA, Using 2SD1628
*1
FB Control Voltage
VFB
Power Supply Voltage Range
VDD
Operation Start Voltage
VST1
Recommended Circuit using 2SD1628,
IOUT=1.0mA
*1
Oscillation Start Voltage
VST2
No external connections
CE connected to VDD, Voltage applied, FB=0V
Operation Holding Voltage
VHLD
Recommended Circuit using 2SD1628,
IOUT=1.0mA
Supply Current 1
IDD1
Same as VST2, VDD=3.300V
62
88
µA
Supply Current 2
IDD2
Same as IDD1, FB=1.2V
16
22
µA
Stand-by Current
ISTB
Same as IDD1, CE=0V
1.0
µA
Oscillation Frequency
FOSC
Same as IDD1
255
300
345
kHz
Maximum Duty Ratio
MAXDTY
Same as IDD1
75
81
87
%
PWM Duty Ratio
PFMDTY
No Load
24
32
40
%
4
4
5
4
4
1
220
300
380
mV
6
1
1
5
5
1
1
4
4
5
5
5
5
(XC9104B/D, 9105B/D)
Step input to FB ( Pulse width:2.0µS or more)
*3
Overcurrent SENSE Voltage
VLMT
EXT = Low level voltage
(XC9103B, 9104B, 9105B)
Recommended Circuit using XP161A1355
-
85
-
%
5.0
10.0
20.0
mS
0.20
V
V
Efficiency
EFFI
Soft-start Time
TSS
CE "High" Voltage
VCEH
Same as IDD1
0.65
-
Same as IDD1
-
-
V
CE "Low" Voltage
VCEL
*2
PWM "High" Voltage
VPWMH
IOUT=1.0mA
(XC9105B/D)
VDD - 0.2
-
-
*2
PWM "Low" Voltage
VPWML
IOUT=1.0mA
(XC9105B/D)
-
-
VDD - 1.0
V
EXT "High" ON Resistance
REXTH
Same as IDD1, VEXT=VOUT-0.4V
-
24
36
Ω
EXT "Low" ON Resistance
REXTL
Same as IDD1, VEXT=0.4V
-
16
24
Ω
CE "High" Current
ICEH
Same as IDD2, CE=VDD
-
-
0.1
µA
CE "Low" Current
ICEL
Same as IDD2, CE=0V
-
-
-0.1
µA
FB "High" Current
IFBH
Same as IDD2, FB=VDD
-
-
0.1
µA
FB "Low" Current
IFBL
Same as IDD2, FB=0V
-
-
-0.1
µA
Test Conditions: Unless otherwise stated, CL: ceramic, recommended MOS FET should be connected.
VOUT=3.30 (V), VIN=2.00 (V), IOUT=170 (mA)
" NOTES
*1
Although the IC starts step-up operations from a VDD of 0.8V, the output voltage and oscillation frequency are stabilized at
VDD ≥ 1.8V. Therefore, a VDD of more than 1.8V is recommended when VDD is supplied from VIN or other power sources.
*2
With the XC9105 series, the CE pin also serves as a PWM/PFM switching pin. In operation, PWM control is selected when the voltage at the CE pin is
more than VDD -0.2V. On the other hand, PWM/PFM automatic switching control at a duty = 25% is selected when the voltage at the CE pin is less than
VDD -1.0V and more than VCEH.
*3
The overcurrent limit circuit of this IC is designed to monitor the ripple voltage so please select your external components carefully to prevent VLMT
being reached under low temperature conditions as well as normal operating conditions. Following current limiter circuit operations, which in turn causes
the IC's operations to stop, the operations of the IC can be returned to normal with a toggle of the CE pin or by turning the power supply back on.
5
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
" TYPICAL APPLICATION CIRCUIT
RSENSE
VOUT
RFB1
L
SD
VIN
CFB
RFB2
1
5
3
CE
(CE/PWM)
Cb
Nch Power
MOS FET
2
CL
Rb
4
When obtaining VDD from a source other than
VOUT, please insert a capacitor CIN between
the VDD pin and the GND pin in order to provide
stabler operations.
Please wire CL & CIN between the VOUT/VDD
pin and the GND pin. Strengthen the wiring
sufficiently.
Insert Rb and CB when using a
bipolar NPN Transistor.
" HOW TO USE
VDD
RM1
CE/PWM
RM2
SPWM
SCE
SCE
SPWM
CONDITIONS
ON
ON or OFF
Chip Disable
OFF
ON
Duty=25%, PWM/PFM automatic switching
OFF
OFF
PWM
By using external signals, the control of the XC9105 series can be switched between PWM control
and PWM/PFM automatic switching control. By inputting a voltage of more than VDD -0.2V to the
CE/PWM pin, PWM control can be selected. On the other hand, PWM/PFM automatic switching
control can be selected by inputting a voltage of less than VDD -1.0V.
With the XC9105, by connecting resistors of the same value (RM1, RM2) as shown in the diagram
to the left, it is possible to obtain chip disable with SCE ON and, SPWM ON or OFF, PWM/PFM
auto switching at Duty=25% with SCE OFF & SPWM ON, & PFM control with both switches OFF.
Note:
When operating at VDD -1.8V and below (stepping-up from VIN=0.9V), it is necessary to pull-up to
VDD in order to allow the CE/PWM pin reach the VCEH voltage level. Please make sure that the
IC is in PWM control (SPWM=OFF) when operations start. If SPWM is ON, there are times when
chip enable might not operate.
* Please select your external components carefully (refer to the page 8).
6
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
" NOTE ON HOW TO USE B TYPE
When applying voltage to VDD through CE pin with the series' B type product, the
limiter circuit may operate when a power supply is on, and the operation may not
start. In this case, as the right circuit indicates, please connect a resistor and a
capacitor with the CE pin. By the time constant, the CE pin will be chip enable after
VDD rise so that IC will be in the stable condition.
Please set time constant equal to 10ms by the following equation.
FB
EXT
Time constant : τ (s) = R (Ω) x C (F)
VDD
[ Example of Equation ]
τ (s)
GND
R = 100kΩ, C = 0.1µF
R
= R (Ω) x C (F)
CE/PWM
= 100kΩ x 0.1µF = 10ms
C
" OPERATIONAL DESCRIPTION
The XC9103/04/05 series are step-up DC/DC converter controller ICs with built-in high speed, low ON resistance drivers.
<Error Amp.>
Error Amplifier is designed to monitor the output voltage, comparing the feedback voltage (FB) with the reference voltage Vref. In response to feedback
of a voltage lower than the reference voltage Vref, the output voltage of the error amp. decreases.
<OSC Generator>
This circuit generates the internal reference clock.
<Ramp Wave Generator>
The Ramp Wave Generator generates a saw-tooth waveform based on outputs from the OSC Generator.
<PWM Comparator>
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>
This circuit generates PFM pulses.
The PWM/PFM automatic switching mode switches between PWM and PFM automatically depending on the load. The PWM/PFM automatic switching
mode is selected when the voltage of the CE pin is less than VDD - 1.0V, and the control switches between PWM and PFM automatically depending on
the load. PWM/PFM control turns into PFM control when threshold voltage becomes lower than voltage of error amps. PWM control mode is selected
when the voltage of the CE pin is more than VDD - 0.2V. Noise is easily reduced with PWM control since the switching frequency is fixed. The series is
suitable for noise sensitive portable audio equipment as PWM control can suppress noise during operation and PWM/PFM switching control can reduce
consumption current during light load in stand-by.
<Vref 1 with Soft Start>
The reference voltage, Vref (FB pin voltage)=0.9V, is adjusted and fixed by laser trimming (for output voltage settings, please refer to the notes on page
8). 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 the error amps, the operation maintains a balance between the two inputs of the error amps and controls the EXT pin's ON
time so that it doesn't increase more than is necessary.
<Enable Function>
This function controls the operation and shutdown of the IC. When the voltage of the CE pin is 0.2V or less, the mode will be disable, the channel's
operations will stop and the EXT1 pin will be kept at a low level (the external N-type MOSFET will be OFF). When the IC is in a state of disable, current
consumption will be no more than 1.0µA.
When the CE pin's voltage is 0.65V or more, the mode will be enable and operations will recommence.
Semiconductor Ltd.
7
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
" FUNCTIONAL SETTINGS
< Output Voltage Setting>
Output voltage can be set by adding external split resistors. Output voltage is determined by the following equation, based on the values of RFB1 and
RFB2. The sum of RFB1 and RFB2 should normally be 2 MΩ or less.
VOUT = 0.9 x (RFB1 + RFB2) / RFB2
The value of CFB1, speed-up capacitor for phase compensation, should result in fzfb = 1/(2 π × CFB × RFB1) equal to 5 to 30kHz. Adjustments
are required depending on the application, value of inductance (L), and value of load capacity (CL).
fzfb = 30kHz (L=10µH)
[ Example of Equation ]
fzfb = 20kHz (L=22µH)
RFB1 : 120kΩ
fzfb = 10kHz (L=47µH)
CFB :
RFB2 : 45kΩ
47pF
(fzfb = 30kHz, L = 10µH)
68pF
(fzfb = 20kHz, L = 22µH)
130pF
(fzfb = 10kHz, L = 47µH)
< The use of ceramic capacitor CL >
The circuit of the XC9103/04/05 series is organized by a specialized circuit which reenacts negative feedback of both voltage and current. Also
by insertion of approximately 100mΩ of a low and inexpensive sense resistor as current sense, a high degree of stability is possible even using
a ceramic capacitor, a condition which used to be difficult to achieve. Compared to a tantalum condenser, because the series can be operated
in a very small capacity, it is suited to use of the ceramic capacitor which is cheap and small.
< External Components >
Tr:
SD:
L, CL:
L:
*When a MOSFET is used :
*When a NPN Tr. Is used :
XP161A1355PR (TOREX Nch. Power MOSFET)
Note* : As the breakdown voltage of XP161A1355 is 8V, take
care with the power supply voltage. With output voltages over
6V, use the XP161A1265 with a breakdown voltage of 12V.
VST1: XP161A1355 PR =1.2V (max.)
XP161A1265PR = 1.5V (max.)
2SD1628 (Sanyo)
Rb
: 500Ω (adjust with Tr's HSE or load)
Cb
: 2200pF (ceramic type)
Cb ≤ 1 / (2π × Rb× FOSC × 0.7)
MA2Q737 (Schottky type, MATSUSHITA)
When using ceramic type
22µH (SUMIDA CDRH5D28, FOSC = 100, 180kHz)
10µH (SUMIDA CDRH5D18, FOSC = 300, 500kHz)
CL:
10V 10µF (ceramic type, TAIYO YUDEN LMK325BJ106ML))
Use the formula below when step-up ratio and output current is large.
CL = (CL standard value) x (IOUT(mA) / 300mA x VOUT / VIN)
RSENSE:
100mΩ (FOSC = 180, 300, 500kHz)
50mΩ (FOSC = 100kHz)
CL:
L:
Tantalum Type
22µH (SUMIDA CDRH5D28, FOSC = 300kHz)
47µH (SUMIDA CDRH5D28, FOSC = 100, 180kHz)
Except when IOUT(mA) / 100mA × VOUT / VIN > 2 → 22µH
10µH (SUMIDA CDRH5D18, FOSC = 500kHz)
CL:
16V 47µF (tantalum type NICHICHEMI 16MCE476MD2)
Use the formula below when step-up ratio and output current is large.
CL = (CL standard value) × (IOUT(mA) / 300mA × VOUT / VIN)
RSENSE:
Not required, but short out the wire.
CL:
AL Electrolytic Type
L:
22µH (SUMIDA CDRH5D28, FOSC = 300kHz)
47µH (SUMIDA CDRH5D28, FOSC = 100, 180kHz)
Except when IOUT(mA) / 100mA × VOUT / VIN > 2 → 22µH
CL:
16V 100µF (AL electrolytic type) + 10V 2.2µF (ceramic type)
RSENSE:
Not required, but short out the wire.
CFB:
Set up so that fzfb = 100kHz.
Strengthen appropriately when step-up ratio and output current is large.
8
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
" TEST CIRCUITS
CIRCUIT 1
CIRCUIT 4
SD
RP
VOUT
RSENSE
L
CP
OSC
A
EXT
VDD
CFB
RFB1
VIN
A
CL
Tr
CIN
V
FB
CE
GND
OSC
EXT
RFB2
VDD
RL
CE
CDD
FB
A
GND
CIRCUIT 2
CIRCUIT 5
A
A
SD
VDD
EXT
C
CE
FB
E
A
A
GND
RSENSE
L
CB
A
OSC
EXT
VDD
CFB
RFB1
CIN
V
FB
CE
RB
VIN
A
CL
Tr
GND
RFB2
RL
CIRCUIT 6
CIRCUIT 3
SD
RSENSE
EXT
L
CB
A
VDD
CFB
RFB1
RB
RFB1
V
FB
CE
GND
FB
CE
A
CL
Tr
CIN
CFB
0.1uF
EXT
VIN
V DD
OSC
GND
RFB2
RFB2
RL
9
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
" TYPICAL PERFORMANCE CHARACTERISTICS
(1) Output Voltage vs. Output Current
XC9103D092MR (PWM,180kHz,3.3V)
XC9104D092MR (PWM/PFM,180kHz,3.3V)
L=22mH(CDRH5D28),CL=20mF(ceramic)
SD:MA2Q737 Tr:XP161A1355P
3.5
L=22µH(CDRH5D28),CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
3.5
Output Voltage VOUT(V)
Output Voltage VOUT(V)
2.0V
3.4
3.3
1.8V
VIN=0.9V
3.2
1.2V
1.5V
3.1
0.1
VIN=0.9V
1.8V
3.2
1.2V 1.5V
3.1
1
10
100
0.1
1000
1
10
100
1000
Output Current I OUT(mA)
Output Current IOUT(mA)
XC9103D093MR (PWM,300kHz,3.3V)
XC9104D093MR (PWM/PFM,300kHz,3.3V)
L=10µH(CDRH5D18),CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
L=10µH(CDRH5D18),CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
3.5
3.5
2.7V
2.0V
Output Voltage VOUT(V)
Output Voltage VOUT(V)
3.3
3.0
3.0
3.4
3.3
3.2
VIN=0.9V
1.8V
1.2V
3.1
1.5V
3.0
3.4
3.3
VIN=0.9V
3.2
1.2V 1.5V
1.8V
3.1
3.0
0.1
1
10
100
1000
0.1
1
10
100
1000
Output Current IOUT(mA)
Output Current IOUT(mA)
XC9103D091MR (PWM,100kHz,3.3V)
XC9104D091MR (PWM/PFM,100kHz,3.3V)
L=22µH(CDRH5D28),CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
Output Voltage VOUT(V)
2.0V
3.4
3.3
3.2
VIN=0.9V
1.2V
L=22µH(CDRH5D28),CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
3.5
3.5
Output Voltage VOUT(V)
2.0V
3.4
1.8V
1.5V
3.1
3.0
2.0V
3.4
3.3
3.2
VIN=0.9V
3.1
1.2V
1.8V
1.5V
3.0
0.1
1
10
100
Output Current IOUT(mA)
1000
0.1
10
1
10
100
Output Current IOUT(mA)
1000
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
(1) Output Voltage vs. Output Current (Contd.)
XC9104D095MR (PWM/PFM,500kHz,3.3V)
XC9103D095MR (PWM,500kHz,3.3V)
3.5
3.5
2.0V
2.0V
3.4
Output Voltage VOUT(V)
Output Voltage VOUT(V)
L=10µH(CDRH5D18), CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
L=10µH(CDRH5D18), CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
3.3
VIN=0.9V
1.8V
3.2
1.2V 1.5V
3.1
3.0
3.4
3.3
VIN=0.9V
3.1
1
10
100
1000
Output Current I OUT(mA)
0.1
1
10
100
Output Current I OUT(mA)
XC9103D092MR (PWM,180kHz,3.3V)
XC9104D092MR (PWM/PFM,180kHz,3.3V)
L=22µH(CDRH5D28),CL=47µF(tantalum)
SD:MA2Q737, Tr:XP161A1355P
1000
L=22µH(CDRH5D28), CL=47µF(tantalum)
SD:MA2Q737, Tr:XP161A1355P
3.5
3.5
2.0V
Output Voltage VOUT(V)
Output Voltage VOUT(V)
1.5V 1.8V
3.0
0.1
3.4
3.3
1.5V
3.2
VIN=0.9V
1.2V
1.8V
3.1
2.0V
3.4
3.3
VIN=0.9V
3.2
1.2V
1.8V
1.5V
3.1
3.0
3.0
0.1
1
10
100
Output Current IOUT(mA)
0.1
1000
10
100
1000
XC9104D093MR (PWM/PFM,300kHz,3.3V)
L=22µH(CDRH5D28), CL=94µF(tantalum)
SD:MA2Q737, Tr:XP161A1355P
L=22µH(CDRH5D28), CL=94µF(tantalum)
SD:MA2Q737, Tr:XP161A1355P
3.5
1
Output Current I OUT(mA)
XC9103D093MR (PWM,300kHz,3.3V)
3.5
2.0V
2.0V
Output Voltage VOUT(V)
Output Voltage VOUT(V)
1.2V
3.2
3.4
3.3
VIN=0.9V
3.2
1.2V
1.8V
3.1
3.0
3.4
3.3
3.2
VIN=0.9V
1.2V
1.8V
1.5V
3.1
3.0
0.1
1
10
100
1000
0.1
Output Current I OUT(mA)
1
10
100
1000
Output Current I OUT(mA)
11
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
(2) Efficiency vs. Output Current
XC9104D092MR (PWM/PFM,180kHz,3.3V)
XC9103D092MR (PWM,180kHz,3.3V)
L=22µH(CDRH5D28), CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
L=22µH(CDRH5D28),CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
100
100
2.0V
80
Efficiency EFFI(%)
Efficiency EFFI(%)
2.0V
60
VIN=0.9V
1.8V
40
1.2V 1.5V
20
80
60
VIN=0.9V
40
1.5V
20
0
0
0.1
1
10
100
0.1
1000
1
10
L=10µH(CDRH5D18),CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
L=10µH(CDRH5D18), CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
100
100
2.7V
80
Efficiency EFFI(%)
Efficiency EFFI(%)
2.0V
60
1.8V
1.2V
1.5V
VIN=0.9V
1000
XC9104D093MR (PWM/PFM,300kHz,3.3V)
XC9103D093MR (PWM,300kHz,3.3V)
40
100
Output Current IOUT(mA)
Output Current IOUT(mA)
20
80
60
1.2V
1.8V
40
VIN=0.9V
1.5V
20
0
0
0.1
1
10
100
0.1
1000
XC9103D091MR (PWM,100kHz,3.3V)
1000
100
2.0V
Efficiency EFFI(%)
80
60
VIN=0.9V
1.8V
1.2V
100
L=22µH(CDRH5D28), CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
2.0V
40
10
XC9104D091MR (PWM/PFM,100kHz,3.3V)
L=22µH(CDRH5D28), CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
100
1
Output Current IOUT(mA)
Output Current IOUT(mA)
Efficiency EFFI(%)
1.8V
1.2V
1.5V
20
0
80
60
1.8V
VIN=0.9V
40
1.2V
1.5V
20
0
0.1
1
10
100
1000
0.1
Output Current IOUT(mA)
1
10
100
1000
Output Current IOUT(mA)
12
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
(2) Efficiency vs. Output Current (Contd.)
XC9104D095MR (PWM/PFM,500kHz,3.3V)
XC9103D095MR (PWM,500kHz,3.3V)
L=10µH(CDRH5D18), CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
L=10µH(CDRH5D18), CL=20µF(ceramic)
SD:MA2Q737, Tr:XP161A1355P
100
100
2.0V
80
Efficiency EFFI(%)
Efficiency EFFI(%)
2.0V
60
1.8V
40
1.2V
20
1.5V
0
80
60
VIN=0.9V
1.8V
40
1.2V
1.5V
20
0
0.1
1
10
100
1000
0.1
Output Current IOUT(mA)
10
100
XC9104D092MR (PWM/PFM,180kHz,3.3V)
L=22µH(CDRH5D28), CL=47µF(tantalum)
SD:MA2Q737, Tr:XP161A1355P
L=22µH(CDRH5D28),CL=47µF(tantalum)
SD:MA2Q737, Tr:XP161A1355P
100
2.0V
80
Efficiency EFFI(%)
Efficiency EFFI(%)
2.0V
60
1.8V
1.2V
40
VIN=0.9V
1.5V
20
0
80
60
VIN=0.9V 1.2V
1.8V
40
1.5V
20
0
0.1
1
10
100
1000
0.1
1
10
100
1000
Output Current I OUT(mA)
Output Current I OUT(mA)
XC9103D093MR (PWM,300kHz,3.3V)
XC9104D093MR (PWM/PFM,300kHz,3.3V)
L=22µH(CDRH5D28), CL=94µF(tantalum)
SD:MA2Q737, Tr:XP161A1355P
L=22µH(CDRH5D28),CL=94µF(tantalum)
SD:MA2Q737, Tr:XP161A1355P
100
100
2.0V
2.0V
80
Efficiency EFFI(%)
Efficiency EFFI(%)
1000
Output Current I OUT(mA)
XC9103D092MR (PWM,180kHz,3.3V)
100
1
60
1.8V
40
VIN=0.9V 1.2V
1.5V
20
80
60
1.8V
1.2V
40
VIN=0.9V
1.5V
20
0
0
0.1
1
10
100
0.1
1000
Output Current IOUT(mA)
1
10
100
1000
Output Current IOUT(mA)
13
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
(3) Load Transient Response
XC9103D092MR(PWM,180kHz,3.3V)
XC9103D092MR(PWM,180kHz,3.3V)
VIN=1.98V, CL=20µF(ceramic), IOUT=100µA→100mA
3.4
400
Output Voltage
300
3.3
200
3.2
100
3.1
Output Voltage
3.3
300
3.2
200
100mA
Output Current
100µA
Time (2.0msec/div)
Time (1.0msec/div)
XC9104D092MR(PWM/PFM,180kHz,3.3V)
XC9104D092MR(PWM/PFM,180kHz,3.3V)
VIN=1.98V, CL=20µF(ceramic), IOUT=100µA→100mA
400
Output Voltage
3.3
300
3.2
200
100mA
3.1
100
Output Voltage VOUT(V)
3.4
Output Current IOUT(mA)
Output Voltage VOUT(V)
3.5
500
3.4
3.3
300
3.2
200
3.1
VIN=1.98V, CL=20µF(ceramic), IOUT=100µA→100mA
500
3.3
300
3.2
200
100mA
100
Output Voltage VOUT(V)
400
Output Voltage
500
3.5
Output Current IOUT(mA)
Output Voltage VOUT(V)
0
XC9103D093MR(PWM,300kHz,3.3V)
VIN=1.98V, CL=20µF(ceramic), IOUT=100µA→100mA
400
3.4
Output Voltage
3.3
300
3.2
200
100mA
100
3.1
100µA
Output Current
3.0
Output Current
Time (2.0msec/div)
XC9103D093MR(PWM,300kHz,3.3V)
3.1
100
3.0
Time (1.0msec/div)
3.4
100mA
100µA
0
3.5
400
Output Voltage
Output Current
3.0
500
Output Current IOUT(mA)
VIN=1.98V, CL=20µF(ceramic), IOUT=100µA→100mA
3.5
0
3.0
0
100µA
100
3.1
100µA
3.0
100µA
400
3.4
Output Current
0
3.0
0
Output Current IOUT(mA)
100mA
Output Current
500
Output Current IOUT(mA)
500
Output Voltage VOUT(V)
3.5
3.5
Output Current IOUT(mA)
Output Voltage VOUT(V)
VIN=1.98V, CL=20µF(ceramic), IOUT=100µA→100mA
Time (10.0msec/div)
Time (1.0msec/div)
14
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
(3) Load Transient Response (Contd.)
XC9104D093MR(PWM/PFM,300kHz,3.3V)
XC9104D093MR(PWM/PFM,300kHz,3.3V)
400
Output Voltage
3.3
300
3.2
200
100mA
100
3.3
300
3.2
200
3.1
Output Current
100µA
3.4
400
Output Voltage
3.3
300
3.2
200
100mA
100
VIN=1.98V, CL=47µF(tantalum), IOUT=100µA→100mA
3.3
300
3.2
200
3.1
0
VIN=1.98V, CL=47µF(tantalum), IOUT=100µA→100mA
500
3.3
300
3.2
200
100mA
100
Output Current
Output Voltage VOUT(V)
400
Output Voltage
3.5
Output Current IOUT(mA)
Output Voltage VOUT(V)
Output Current
XC9104D092MR(PWM/PFM,180kHz,3.3V)
VIN=1.98V, CL=47µF(tantalum), IOUT=100µA→100mA
3.0
100
Time (4.0msec/div)
XC9104D092MR(PWM/PFM,180kHz,3.3V)
100µA
100mA
3.0
Time (1.0msec/div)
3.1
400
Output Voltage
100µA
0
3.4
500
3.4
Output Current
3.5
0
3.5
Output Voltage VOUT(V)
500
Output Current IOUT(mA)
Output Voltage VOUT(V)
VIN=1.98V, CL=47µF(tantalum), IOUT=100µA→100mA
3.5
100µA
Output Current
XC9103D092MR(PWM,180kHz,3.3V)
XC9103D092MR(PWM,180kHz,3.3V)
3.0
100
Time (10.0msec/div)
Time (1.0msec/div)
3.1
100mA
3.0
0
3.0
400
Output Voltage
Output Current IOUT(mA)
100µA
3.4
500
3.4
400
Output Voltage
3.3
300
3.2
200
100mA
3.1
100
100µA
0
Output Current
3.0
Time (1.0msec/div)
Output Current IOUT(mA)
3.1
500
Output Current IOUT(mA)
3.4
VIN=1.98V, CL=20µF(ceramic), IOUT=100µA→100mA
3.5
Output Voltage VOUT(V)
500
Output Current IOUT(mA)
Output Voltage VOUT(V)
VIN=1.98V, CL=20µF(ceramic), IOUT=100µA→100mA
3.5
0
Time (4.0msec/div)
15
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
(4) Output Voltage vs. Power Supply Voltage
Step-Up DC/DC Converters
(5) Supply Current 1 vs. Power Supply Voltage
XC9105D092MR (180kHz,3.3V)
XC9105D092MR(180kHz)
L=22µH(CDRH5D28), CL=20µF(ceramic)
SD:MA2Q737, TXP161A1355P
300
3.35
Supply Current 1 IDD1(µA)
Output Voltage VOUT(V)
3.40
-40OC
3.30
85OC
Ta=25OC
3.25
VIN=1.98V
IOUT=170mA
3.20
250
200
Ta=25ΟC
150
100
-40OC
50
0
0
2
4
6
8
10
0
(6) Supply Current 2 vs. Power Supply Voltage
4
6
8
10
(7) Stand-by Current vs. Power Supply Voltage
XC9105D092MR(180kHz)
XC9105D092MR(180kHz)
2.0
Stand-by Current ISTB (µA)
50
Supply Current 2 IDD2(µA)
2
Supply Voltage VDD(V)
Supply Voltage VDD(V)
40
Ta=25OC
30
85OC
20
-40OC
10
1.5
85OC
1.0
0.5
Ta=25, -40OC
0.0
0
0
2
4
6
8
0
10
(8) Oscillation Frequency vs. Power Supply Voltage
Maximum Duty Ratio PFMDTY(%)
85OC
200
-40OC
100
Ta=25OC
0
4
6
8
6
8
10
XC9105D092MR(180kHz)
300
2
4
(9) Maximum Duty Ration vs. Power Supply Voltage
XC9105D092MR(180kHz)
0
2
Supply Voltage VDD(V)
Supply Voltage VDD(V)
Oscillation Frequency FOSC(kHz)
85OC
100
Ta=25OC
90
-40OC
80
85OC
70
0
10
2
4
6
8
10
Supply Voltage VDD(V)
Supply Voltage VDD(V)
16
Semiconductor Ltd.
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
(10) PFM Duty Ratio vs. Power Supply Voltage
(11) Overcurrent SENSE Voltage vs. Power Supply Voltage
XC9105D092MR(180kHz)
Overcurrent SENSE Voltage VLMT (mV)
XC9105D092MR(180kHz)
PFM Duty Ratio PFMDTY (%)
40
35
85OC
30
-40OC
25
Ta=25OC
20
15
10
0
2
4
6
8
Ta=25OC
350
300
250
200
150
10
0
Supply Voltage VDD(V)
CE"H", "L" Voltage VDEH, L (V)
Soft Start Time Tss(ms)
-40OC
O
Ta=25 C
10
85OC
5
0
4
6
8
0.8
Ta=25OC
0.6
-40OC
0.4
85OC
0.2
0
EXT "H" ON Resistance REXTH (Ω)
PWM"H", "L" Voltage VPWMH, L (V)
85OC
-0.4
-0.6
-40OC
-0.8
-1.0
8
6
8
10
XC9105D092MR(180kHz)
-0.2
6
4
(15) EXT "H" ON Resistance vs. Power Supply Voltage
Ta=25OC
4
2
Supply Voltage VDD(V)
XC9105D092MR(180kHz)
2
10
0.0
10
(14) PWM "H" "L" Voltage vs. Power Supply Voltage
0
8
1.0
Supply Voltage VDD(V)
VD
0.0
D
6
XC9105D092MR(180kHz)
20
2
4
(13) CE "H" "L" Voltage vs. Power Supply Voltage
XC9105D092MR(180kHz)
0
2
Supply Voltage VDD(V)
(12) Soft Start Time vs. Power Supply Voltage
15
Step-Up DC/DC Converters
50
40
Ta=25OC
30
85OC
20
-40OC
10
0
0
10
Supply Voltage VDD(V)
2
4
6
8
10
Supply Voltage VDD(V)
17
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
(16) EXT "L" ON Resistance vs. Power Supply Voltage
Step-Up DC/DC Converters
(17) Operation Start Voltage vs. Ambient Temperature
XC9105D092MR (180kHz,3.3V)
XC9105D092MR(180kHz)
1.2
50
Operation Start Voltage VST1 (V)
EXT "L" ON Resistance REXTL (Ω)
L=22µH(CDRH5D28),CL=20µF(ceramic)
SD:MA2Q737, Tr:2SD1628G
40
30
Ta=25OC
20
85OC
10
-40OC
1.0
0.8
0.6
0.4
IOUT=1mA
0.2
0.0
0
0
2
4
6
8
-40 -20 0
20 40 60 80 100
Ambient Temperature Ta ( OC)
10
Supply Voltage VDD(V)
(18) Operation Hold Voltage vs. Ambient Temperature
(19) Oscillation Start Voltage vs. Ambient Temperature
XC9105D092MR (180kHz,3.3V)
XC9105D092MR (180kHz,3.3V)
0.8
Oscillation Start Voltage VST2 (V)
Operation Hold Voltage VHLD (V)
L=22µH(CDRH5D28), CL=20µF(ceramic)
SD:MA2Q737, Tr:2SD1628G
0.6
0.4
0.2
IOUT=1mA
0.0
1.0
0.8
0.6
0.4
0.2
0.0
-40 -20 0
20 40 60 80 100
Ambient Temperature Ta ( OC)
(20) Supply Current 1 vs. Power Supply Voltage
-40 -20 0
20 40 60 80 100
Ambient Temperature Ta ( OC)
(21) Supply Current 2 vs. Power Supply Voltage
XC9105D093/095MR(300,500kHz)
Ta=25OC
500
400
300
Ta=25OC
50
Supply Current 2 IDD2 (µA)
600
Supply Current 1 IDD1 (µA)
XC9105D093/095MR(300,500kHz)
500kHz
200
300kHz
100
40
30
500kHz
20
300kHz
10
0
0
0
2
4
6
8
Supply Voltage VDD(V)
0
10
2
4
6
8
10
Supply Voltage VDD(V)
18
Semiconductor Ltd.
XC9103/04/05 Series
Ceramic Cap. Compatible
(22) Oscillation Frequency vs. Power Supply Voltage
(23) Maximum Duty Ratio vs. Power Supply Voltage
XC9105D093/095MR(300,500kHz)
XC9105D093/095MR (300,500kHz)
Ta=25OC
600
Ta=25OC
Maximum Duty Ratio PFMDTY (%)
Oscillation Frequency FOSC (kHz)
Step-Up DC/DC Converters
500kHz
500
400
300
300kHz
200
100
0
100
90
300kHz
80
500kHz
70
0
2
4
6
8
10
0
Supply Voltage VDD(V)
2
4
6
8
10
Supply Voltage VDD(V)
(24) PFM Duty Ratio vs. Power Supply Voltage
XC9105D093/095MR(300,500kHz)
Ta=25OC
PFM Duty Ratio PFMDTY (%)
40
500kHz
35
30
300kHz
25
20
15
10
0
2
4
6
8
10
Supply Voltage VDD(V)
19
Semiconductor Ltd.