APW7037 查看數據表（PDF） - Anpec Electronics
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APW7037 Datasheet PDF : 11 Pages
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APW7037A/B
Block Diagram
Max .
64uA
SS
3.3V
20uA
VCC
4.5V Regulator
POR Pow er
On Reset
25k
FB
Under-Voltage
V FBUV
PWM
Gate
Control
V CC
25k
V REF
Error
Amp.
OSC
FOSC
COMP
GND
VC
HDRV
LDRV
Typical Application Circuit
1. Dual supply voltage(5V and 12V) application
Q2
APM2300
A
Shutdown
C7
0.1uF
R3
24k
C8
2200pF
R4
3
C1
1uF
VCC
C2
1uF
VC
8 SS
HDRV 5
U1
APW7037A/B
7 COMP
3
LDRV
GND
FB 1
C5
1uF
C4
100uF
L3
1uH
+12V
VIN
+5V
C3
47uF
Q1A
APM7313
Q1B
APM7313
L4
3.3uH
R1
249
VOUT
1.5V/5 A
C6,C9
2 x 150uF
R2
1.24k
Copyright © ANPEC Electronics Corp.
5
Rev. A.7 - Jun., 2008
www.anpec.com.tw
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