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| LTC3129_15 Datasheet, PDF (25/30 Pages) Linear Technology – 15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3A Quiescent Current | |||
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TYPICAL APPLICATIONS
Li-Ion Powered 3V Converter with 3.1V Input UVLO Reduces Low Battery IQ to 3µA
LTC3129
22nF 4.7µH 22nF
UVLO = 3.1V
+
Li-Ion
4.7µF
2M
VCC
1.27M
10pF
BST1 SW1
VIN
SW2 BST2
VOUT
LTC3129
RUN
MPPC
PWM
NC
NC
GND
FB
PGOOD
VCC
PGND
10µF
33pF
VOUT
3V
200mA
1.58M
1.02M
2.2µF
3129 TA05
15V Converter Operates from Three to Eight AA or AAA Cells
22nF 10µH 22nF
VIN
2.42V TO 15V
THREE TO EIGHT
AA OR AAA
BATTERIES
10µF
VCC
BST1 SW1
VIN
SW2 BST2
VOUT
LTC3129
RUN
MPPC
PWM
NC
NC
GND
FB
PGOOD
VCC
PGND
10µF
25V
3.01M
255k
2.2µF
3129 TA06
VOUT
15V
25mA MINIMUM
22pF
For more information www.linear.com/LTC3129
3129fb
25
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