Datasheet

LTC3129-1
26
31291fa
For more information www.linear.com/LTC3129-1
Typical applicaTions
Solar Powered Converter Extends Battery Life in Low Power 3V Primary Battery Applications
Percentage of Added Battery Life vs Light Level and Load
(PowerFilm SP4.2-37, 30sq cm Panel)
LIGHT LEVEL (Lx)
100
ADDED BATTERY LIFE (%)
1000
100
10
1
31291 TA09b
10,0001,000
AVERAGE LOAD = 165µW
AVERAGE LOAD = 330µW
AVERAGE LOAD = 660µW
AVERAGE LOAD = 1650µW
AVERAGE LOAD = 3300µW
BST1
V
OUT
SW1 SW2
LTC3129-1
22nF
3.30V
BST2
PGOOD
GND
V
CC
V
CC
V
IN
RUN
MPPC
PWM
VS1
VS2
VS3
22nF
3.3µH
10pF
2.2µF
V
OUT
BAT54
470µF
6.3V
74LVC2G04
31291 TA09
PGND
FDC6312P
DUAL PMOS
PV PANEL
SANYO AM-1815
OR
PowerFilm SP4.2-37
4.7µF
V
IN
UVLO = 3.7V
4.99M
2.43M
D1 D2
S2S1
G2
CR2032
3V COIN CELL
V
OUT
3V TO 3.3V
G1
2.43M
22µF
2.2µF
+