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| LTC3129_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
TYPICAL APPLICATIONS
Energy Harvesting Converter Operates from a Variety of Weak Sources
INPUT SOURCES:
⢠RF
⢠AC
⢠PIEZO
⢠COIL-MAGNET
BAS 70-05
BAS 70-06
22nF 4.7µH 22nF
UVLO = 3.3V
4.99M
100µF
CERAMIC
VCC
3.01M
10pF
BST1 SW1
VIN
SW2 BST2
VOUT
LTC3129
RUN
MPPC
PWM
NC
NC
GND
FB
PGOOD
VCC
PGND
10µF
3.32M
1.02M
2.2µF
3129 TA07
VOUT
5V
22pF
Solar Powered Converter Extends Battery Life in Low Power 3V Primary Battery Applications
TOKO DEM2812C
22nF 3.3µH 22nF
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
BST1 SW1
VIN
SW2 BST2
VOUT
LTC3129
RUN
FB
MPPC
PWM
NC
NC
GND
PGOOD
VCC
PGND
3.20V
22µF
4.22M
R4
2.43M
15pF
2.43M
FDC6312P
DUAL PMOS
S1 S2
VOUT
3V TO 3.2V
D1
D2
2.2µF
G1
G2
VOUT
CR2032
3V COIN CELL
BAT54
2.2µF
74LVC2G04
3129 TA09
26
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
3129 TA09b
For more information www.linear.com/LTC3129
3129fb
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