DIODES AP1609S

AP1609
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
General Description
Features
•
•
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•
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The AP1609 is a high efficient step-up DC/DC converter. Large
output current is possible having a built in internal N channel
MOSFET, and using an external coil and diode.
Input Voltage Range: 2.5~6V
Output Voltage Range: 3.0~17V (±2.5%)
PWM/PFM Switching Control
Oscillator Frequency: 300KHz (±20%)
High Efficiency: 91% (Typ.)
Stand-by Current: ISTB 1 = µA (Typ.)
Built-in internal N-Channel MOS
Lead-Free and Green Package: SOP-8L
Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
Output voltage is programmable with 1.23V of standard voltage
supply internal, and using externally connected components,
output voltage (FB) can be set up at will.
With a 300KHz switching frequency, the size of the external
components can be reduced. Control switches from PFM to PWM
during light loads with the AP1609 (PWM/PFM switchable) and
the series are highly efficient from light loads to large output
currents.
During stand-by time (CE pin “Low”), current consumption is
reduced to 1µA.
Applications
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Electronic Information Organizers
Palmtops
Cellular and Portable Phones
Portable Audio Systems
Various Multi-Function Power Supplies
Ordering Information
AP1609 X X X
Package
Packing
Lead-Free
S : SOP-8L L : Lead-Free
G : Green
Note:
Note:
- U : Tube
-13 : Taping
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
(Note 2)
Package
Code
AP1609S
S
Packaging Quantity
SOP-8L
Tube
Part Number
Suffix
100
-U
13” Tape and Reel
Quantity
Part Number
Suffix
2500/Tape & Reel
-13
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP1609 Rev. 1
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© Diodes Incorporated
AP1609
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
Pin Descriptions
Pin Assignments
CE 1
8 GND
Vcc 2
7 GND
AP1609
FB 3
6 LX
PGND 4
5 LX
SOP-8L
Pin
Pin
Name Number
CE
1
Vcc
FB
PGND
2
3
4
LX
5, 6
GND
7, 8
Description
Chip Enable:
H: Enable
L: Disable
IC signal power supply pin
Feedback pin
Power MOSFET GND
Switch Pin. Connect external
inductor/diode here. Minimize
trace area at this pin to
reduce EMI.
GND Pin
Block Diagram
Vcc
FB
Phase
Compensation
+
+
-
CE
Vref with
CE
LX
Buffer,
Driver
-
PWM/PFM
Controller
PWM
Comparator
Ramp Wave
Generator,
OSC
GND
AP1609 Rev. 1
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PGND
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© Diodes Incorporated
AP1609
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
Absolute Maximum Ratings
Parameter
VIN Pin Voltage
FB Pin Voltage
CE Pin Voltage
Switch Voltage (LX to GND)
Switch Current
Continuous Total Power
Dissipation
Operating Ambient
Temperature
Storage Temperature
Symbol
VCC
VFB
VCE
VSW
ILX
Ratings
-0.3 ~ 7
-0.3 ~ VCC +0.3
-0.3 ~ VCC +0.3
-0.3 ~ 18
-3 ~ 0.2
Units
V
V
V
V
A
Pd
1200
mW
Topr
-20 ~ +80
o
-20 ~ +125
o
Tstg
C
C
Electrical Characteristics
AP1609
Parameter
FB Voltage
Input Voltage
Output Voltage
Maximum Switching
Output Current
Drain-Source On-State
Resistance
Quiescent Current
Shutdown Current
Symbol
Min.
Typ.
Max.
Units
VFB
VCC
VOUT
1.20
2.5
3.0
1.23
-
1.26
6
17
V
V
V
IOUT
2.4
-
-
A
ID = 2.4A
-
100
-
mΩ
No Load, FB = 2V, CE = High
No Load, CE = Low
Measuring of EXT Waveform,
VIN = Output Voltage +0.3V
-
80
1
130
-
µA
µA
240
300
360
kHz
80
15
25
35
%
%
0.65
-
-
*VCC
-
91
0.20
-
*VCC
%
RDS (ON)
ICCQ
ISD
Oscillator Frequency
Fosc
Maximum Duty Ratio
PFM Duty Ratio
MAXDTY
PFMDTY
CE “High” Voltage
VCEH
CE “Low” Voltage
Efficiency
VCEL
EFFI
AP1609 Rev. 1
Ta = 25 oC
( FOSC = 300kHz, VOUT = 5V )
Conditions
No Load
No External Components,
VFB = 0V,
Apply 0.65VCC (min.) to CE,
Chip Enable
Same as VCEH, Chip Disable
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© Diodes Incorporated
AP1609
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
Typical Application Circuit
(1) Normal Circuit
10uH
2.5V~6V
SS340
Vout
100
VCC
LX
CE
FB
R1
CBP
Option
330K
100u 0.1u 3.3u
0.1u
0.1u
PGND
GND
Vout = 1.23× (1+
R1
R2
100u
R2
) , R2= 10K~100K
(2) HV Circuit
10uH
above 5.5V
SS340
15V
R
VCC
LX
CE
FB
R1
330K
470u 0.1u
ZD
5V
3.3u
0.1u
0.1u
GND
PGND
Vout = 1.23× (1+
AP1609 Rev. 1
CBP
Option
R1
R2
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470u
R2
) , R2 = 10K~100K
JANUARY 2007
© Diodes Incorporated
AP1609
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
Typical Performance Characteristics
Vcc vs. Supply Current
210
VCE =Vcc
Load = 300mA
350
150
Frequency (KHz)
Supply Current (uA)
180
Vcc vs. Frequency
400
120
90
60
30
300
250
200
150
100
0
3
3.5
4
4.5
5
5.5
3
6
3.5
4
Vcc (V)
Load Regulation (%)
Line Regulation (%)
1.5
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
1
3
3.5
4
4.5
5
5.5
Vcc = 5V
0.5
0
-0.5
-1
-1.5
Load = 50mA
-1
-2
0
6
200
Vcc (V)
Load vs. Efficiency
100
400
600
800
Load (mA)
1000
Load vs. Efficiency
100
95
95
90
90
85
85
Efficiency
Efficiency
6
2
0.8
80
75
70
Vcc = 3.3V,Vout = 5V
65
80
75
Vcc = 5V,Vout = 12V
70
65
60
60
0
0.2
0.4
0.6
0.8
1
1.2
1.4
Load (A)
AP1609 Rev. 1
5.5
Load Regulation
Line Regulation
1
4.5
5
Vcc (V)
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0
0.2
0.4
0.6
0.8
Load (A)
1
1.2
1.4
JANUARY 2007
© Diodes Incorporated
AP1609
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
Typical Performance Characteristics
Temperature vs. Frequency
400
Supply Current (uA)
Frequency (KHz)
350
300
250
200
Load = 300mA
Vcc = 5V
150
100
-50
Vout / Vout (%)
( Continued )
-25
0
25
50
Temperature (oC)
75
100
200
180
160
140
120
100
80
60
40
20
0
Temperature vs. Supply Current
Vcc = 5V
-50
-25
0
25
50
75
100
Temperature (oC)
Temperature vs. Vout
5
4
3
2
1
0
-1
-2
-3
-4
-5
Vcc = 5V
Load = 100mA
-50
-25
0
25
50
o
75
100
Temperature ( C)
AP1609 Rev. 1
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AP1609
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
Marking Information
(1) SOP-8L
( Top View )
8
5
Logo
Part no.
L : Lead Free Package
G: Green Package
AP1609
YY WW X X
4
~
1
Internal code
Xth week: 01~52
Year: "01" =2001
"02" =2002
Device
Package
Identification Code
AP1609S
SOP-8L
AP1609
Package Information
( All Dimensions in mm )
0.254
0.08/0.25
5.79/6.20
3.70/4.10
Package Type: SOP-8L
Gauge Plane
Seating Plane
0.38/1.27
Detail "A"
7°~9°
0.20typ
1.75max.
1.30/1.50
0.35max. 45°
0.3/0.5
1.27typ
7°~9°
Detail "A"
3.70/4.10
4.80/5.30
AP1609 Rev. 1
7 of 8
www.diodes.com
JANUARY 2007
© Diodes Incorporated
AP1609
PWM/PFM DUAL MODE STEP-UP DC/DC CONVERTER
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the
President of Diodes Incorporated.
AP1609 Rev. 1
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© Diodes Incorporated