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LTC3125 Datasheet(PDF) 14 Page - Linear Technology

Part # LTC3125
Description  1.2A Synchronous Step-Up DC/DC Converter with Input Current Limit
PDF  18 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3125 Datasheet(HTML) 14 Page - Linear Technology

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LTC3125
14
3125fa
TYPICAL APPLICATIONS
Stacked Supercap Charger
CS
2.2μH*
LTC3125
GND
VIN
2.74M
100k
100k
10μF
CER
VOUT
4.5V
30F**
2.3V
VIN
2.5V TO 5V
500mA MAX
1M
*TDK VLF4014ST-2R2M1R9
**PANASONIC EECHWOD306
3125 TA06a
SHDN
PROG
VOUT
FB
44.2k
SW
OFF ON
+
30F**
2.3V
+
Waveforms of Input Current, VOUT During Charging
VOUT
2V/DIV
SHDN
5V/DIV
LOAD CURRENT
200mA/DIV
20s/DIV
VIN = 4.5V
VOUT = 4.5V
COUT_SERIES = 15F
L = 2.2μH
RPROG = 44.2k
3125 TA06b



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