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AP1603WG Datasheet(PDF) 3 Page - Diodes Incorporated

Part # AP1603WG
Description  STEP-UP DC/DC CONVERTER
PDF  10 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP1603WG Datasheet(HTML) 3 Page - Diodes Incorporated

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AP1603
STEP-UP DC/DC CONVERTER
AP1603
Document number: DS31131 Rev. 3 - 2
3 of 10
www.diodes.com
June 2010
© Diodes Incorporated
Pin Descriptions
Pin Name
Description
FB
Feedback.
GND
Ground.
REF
1.2V Reference Voltage. Bypass with a 0.1
μF capacitor.
LX
N-Channel and P-Channel Power MOSFET Drain.
OUT
Power Output. OUT provides bootstrap power to the IC.
SHDN
Shutdown Input. Drive high (>80% of VOUT) for operating mode. Drive low
(<20% of VOUT) for shutdown mode. Connect to OUT for normal operation.
Functional Block Diagram
S
Q
R
F/F
TRIG
One-Shot
Q
One-Shot
Q
TRIG
Maximum
On-Time
One-Shot
Current-Limit
Amplifier
Zero
Crossing
Amplifier
Minimum
Off-Time
One-Shot
LX
0.1uF
22uH
0.1uF
47uF
47uF
P
N
VIN
EN
Error
Amplifier
FB connects to
external feedback
resistors
FB connects to
Vcc or GND
FB
VOUT
GND
SHDN



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