Datasheet

LTC3129-1
23
31291fa
For more information www.linear.com/LTC3129-1
Typical applicaTions
3.3V Converter Provides Extremely Long Run Time in Low Drain Applications Using Lithium Thionyl Chloride Battery
Low Noise, Fixed Frequency, Wide V
IN
Range 12V Converter
BST1
V
OUT
V
OUT
12V
SW1 SW2
LTC3129-1
22nF
BST2
PGOOD
PGOOD
GND
V
CC
V
IN
V
IN
2.42V TO 15V
RUN
MPPC
PWM
VS1
V
CC
VS2
VS3
22nF
6.8µH
1M
4.7µF
10µF
16V
2.2µF
31291 TA02
PGND
V
IN
< 12V, I
OUT
= 30mA
V
IN
> 12V, I
OUT
= 200mA
BST1
V
OUT
V
OUT
3.3V
SW1 SW2
LTC3129-1
22nF
BST2
PGOOD
PGOOD
GND
V
CC
V
IN
V
IN
RUN
MPPC
PWM
VS1
V
CC
VS2
VS3
22nF
4.2µH
1M
Li-SoCl
2
AA
SAFT LS14500
TADIRAN TL-4903
22µF47µF
2.2µF
31291 TA03
PGND
RUN TIME
> 100,000 HRS (11.4 YEARS) AT 10µA (33µW) AVERAGE LOAD
> 34,000 HRS (3.9 YEARS) AT 50µA (165µW) AVERAGE LOAD