Datasheet

LTC3523/LTC3523-2
13
3523fb
TYPICAL APPLICATIONS
+
V
IN1
SW1 SW2
FB2
MODE
PGOOD2
SHDN2
FB1
PGOOD1
SHDN1
V
OUT
10pF
V
IN
10μF
V
OUT2
STEP-DOWN
OUTPUT
1.2V
200mA
511k
511k
100k
3523 TA02a
634k
365k
4.7μH
4.7μH
V
IN2
LTC3523
V
BAT
GND1 GND2 GND3
4.7μF
2-CELL
ALKALINE
V
IN
1.8V TO 3.2V
V
OUT1
STEP-UP
OUTPUT
3.3V
200mA
4.7μF
OFF ON
Power Sequence Operation
V
OUT1
2V/DIV
PGOOD2
SHDN2
500μs/DIV
3523 TA02b
V
OUT2
1V/DIV