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| LTC3129-1_15 Datasheet, PDF (26/30 Pages) Linear Technology – 15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3A Quiescent Current | |||
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LTC3129-1
Typical Applications
Solar Powered Converter Extends Battery Life in Low Power 3V Primary Battery Applications
VIN
UVLO = 3.7V
4.7µF 4.99M
PV PANEL
SANYO AM-1815
OR
PowerFilm SP4.2-37
470µF
6.3V
VCC
2.43M
10pF
22nF 3.3µH 22nF
BST1 SW1
VIN
SW2 BST2
VOUT
LTC3129-1
RUN
MPPC
PWM
VS1
VS2
VS3
GND
PGOOD
VCC
PGND
3.30V
22µF
2.43M
FDC6312P
DUAL PMOS
S1 S2
VOUT
3V TO 3.3V
D1
D2
2.2µF
G1
G2
VOUT
CR2032
3V COIN CELL
BAT54
2.2µF
74LVC2G04
31291 TA09
Percentage of Added Battery Life vs Light Level and Load
(PowerFilm SP4.2-37, 30sq cm Panel)
1000
100
10
1
100
AVERAGE LOAD = 165µW
AVERAGE LOAD = 330µW
AVERAGE LOAD = 660µW
AVERAGE LOAD = 1650µW
AVERAGE LOAD = 3300µW
1,000
LIGHT LEVEL (Lx)
10,000
31291 TA09b
26
For more information www.linear.com/LTC3129-1
31291fb
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