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AP1624WA Datasheet(PDF) 4 Page - Anachip Corp

Part # AP1624WA
Description  PWM/PFM Dual Mode Step-up DC/DC Controller
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Manufacturer  ANACHIP [Anachip Corp]
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AP1624WA Datasheet(HTML) 4 Page - Anachip Corp

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AP1624
PWM/PFM Dual Mode Step-up DC/DC Controller
Anachip Corp.
www.anachip.com.tw
Rev.1.1 Dec.23, 2004
4/7
Typical Application Circuit
(1) Normal Circuit
R1
NMOS
AF2302
2.5V~5.5V
EXT
CE
FB
GND
V
CC
SS240
10 H
V
IN
100K
0.1
R2
V
OUT
µ
470µ
470µ
µ
0.1µ
100
0.1µ
0.1µ
VOUT =1.23 × (1+
R2
R1
), R2=10K ~ 20K
(2) LV Circuit
220K
0.9V~2.5V
EXT
CE
FB
GND
V
CC
Schottky Diode
0.1
130K
C
P
3.3V
47µ
47µ
µ
L
100K
NPN
C
B
R
B
V
OUT
V
IN
RB=Adjust according to load and Tr.hFE levels
CB ≤ 1/(2π× RB× FOSC× 0.7)
(3) HV Circuit
330K
FDS6612
Above to 5V
EXT
CE
FB
GND
V
CC
SS240
10 H
V
IN
100K
0.1
V
OUT
µ
470µ
0.1µ
470µ
µ
0.1µ
R
24V/1A
ZD
5V
18K


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