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LTC3129 Datasheet(PDF) 23 Page - Linear Technology

Part # LTC3129
Description  15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3關A Quiescent Current
PDF  30 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3129 Datasheet(HTML) 23 Page - Linear Technology

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LTC3129
23
3129fc
For more information www.linear.com/LTC3129
Typical applicaTions
Low Noise 3.6V Converter Using Bootstrap Diode to Extend Lower VIN Range
Hiccup Converter Powers Wireless Sensor from Indoor Lighting
Transmit Rate vs Light Level
(Fluorescent)
LIGHT LEVEL (Lx)
0
4.5
4.0
2.0
3.5
3.0
2.5
1.5
1.0
0.5
0
3129 TA02b
2000
800
1200
1600
400
BST1
VOUT
VOUT
3.6V
SW1
SW2
LTC3129
22nF
BST2
PGOOD
FB
GND
VCC
VIN
VIN
1.8V TO 15V
RUN
MPPC
PWM
VCC
NC
NC
22nF
6.8µH
2M
BAT54
976k
10µF
10µF
33pF
2.2µF
3129 TA03
PGND
VIN < 3.6V, IOUT = 100mA
VIN > 3.6V, IOUT = 200mA
BST1
VOUT
VOUT
3.6V
SW1
SW2
LTC3129
22nF
BST2
PGOOD
FB
PGOOD
GND
VCC
VIN
VIN
UVLO = 3.5V
RUN
MPPC
PWM
VCC
NC
NC
22nF
4.7µH
1M
2M
976k
2.37M
4.42M
470µF
6.3V
+
10pF
22µF
4.7µF
2.2µF
3129 TA02a
PGND
PV PANEL
SANYO AM-1815
4.9cm × 5.8cm
PULSED IOUT
25mA FOR 5ms



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