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Número de pieza
componentes Descripción
APW7065C Ver la hoja de datos (PDF) - Anpec Electronics
Número de pieza
componentes Descripción
Fabricante
APW7065C
Synchronous Buck PWM Controller
Anpec Electronics
APW7065C Datasheet PDF : 19 Pages
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APW7065C
Block Diagram
VCC
GND
Power-
On-Reset
Digital
Soft Start
O.C.P
Comparator
Error Amp
50%V
REF
:2
Sense Low Side
0.29V
U.V.P
Comparator
PWM
Comparator
Gate
Control
BOOT
UGATE
PHASE
LGATE
V
REF
Oscillator
Sawtooth
Wave
F
OSC
300KHz
FB
COMP
Typical Application Circuit
12V
1N4148
2.2R
1
µ
F
Q3
2N7002
ON/OFF
8.2nF
33nF
2.7K
5
VCC
BOOT
1
7
COMP
UGATE
2
PHASE
8
4
LGATE
6
FB
GND
3
1K
V
IN
(12V)
1
µ
H
0.1
µ
F
1
µ
F
470
µ
Fx2 470
µ
F
Q1
APM2510
1
µ
H
V
OUT
(1.2V)
Q2
APM2556
470
µ
Fx2
2K
18R 68nF
Copyright
©
ANPEC Electronics Corp.
9
Rev. A.2 - Mar., 2008
www.anpec.com.tw
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