Datasheet

MAX1856
Wide Input Range, Synchronizable,
PWM SLIC Power Supply
16 ______________________________________________________________________________________
CS
EXT
1
4
FB
LDO
FREQ
INPUT
4.5V TO 24V
D1: Central Semiconductor CMR1U-02
M1: International Rectifier IRLL2705
T1: ICE Components ICA-0635
R
OSC
200kΩ
C4
1µF
9
10
1
2
3
7
C
LDO
1µF
R
CS
33mΩ
C
IN
(2x) 10µF
25V
GND
REF
V
CC
PGND
SYNC/SHDN
MAX1856
OUTPUT
-48V
M1
8
6
5
4
T1
D1
C5
1nF
R6
100Ω
R5
10Ω
R4
220Ω
R1
332kΩ
R3
8.66kΩ
C
REF
2.2µF
C
FB
1nF
C1
100µF
Sanyo
100MV100AX
C3
330pF
Figure 4. -48V Output Application Circuit