Datasheet

MAX1847
REF FB
GND
CS
EXT
PGND
FREQ
COMP
VL
IN
0.22µF
150kΩ
0.1µF
R2
10.0kΩ
1%
R1
95.3kΩ
1%
0.02Ω
1W
10µH
DO5022P-103
CMSH5-40
47µF
16V
FDS6375
3 x 22µF
10V
POL
SYNC
SHDN
10kΩ
47µF
16V
22kΩ
1
2
16
8
3
4
5
10, 11
6
12
13
14
15
7, 9
N.C.
V
IN
+3V to +5.5V
0.47µF
V
OUT
-12V AT 400mA
SANYO
16TPB47M
1200pF
220pF
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Maxim Integrated │ 9
MAX1846–MAX1847 High-Efciency, Current-Mode,
Inverting PWM Controller
Typical Application Circuit