Datasheet

LTC3129
25
3129fa
For more information www.linear.com/LTC3129
Li-Ion Powered 3V Converter with 3.1V Input UVLO Reduces Low Battery I
Q
to 3µA
15V Converter Operates from Three to Eight AA or AAA Cells
Typical applicaTions
BST1
V
OUT
V
OUT
3V
200mA
SW1 SW2
LTC3129
22nF
BST2
PGOOD
FB
GND
V
CC
V
CC
V
IN
Li-Ion
+
RUN
MPPC
PWM
NC
NC
22nF
4.7µH
2M
UVLO = 3.1V
1.27M
4.7µF
10pF
10µF
33pF
1.58M
2.2µF
3129 TA05
PGND
1.02M
V
CC
BST1
V
OUT
V
OUT
15V
25mA MINIMUM
SW1 SW2
LTC3129
22nF
BST2
PGOOD
FB
GND
V
CC
V
IN
V
IN
2.42V TO 15V
RUN
22nF
10µH
10µF
25V
3.01M
2.2µF
3129 TA06
PGND
THREE TO EIGHT
AA OR AAA
BATTERIES
MPPC
PWM
NC
NC
10µF
255k
22pF