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LTC3523 Datasheet(PDF) 14 Page - Linear Technology

Part # LTC3523
Description  Synchronous 600mA Step-Up and 400mA Step-Down DC/DC Converters
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3523 Datasheet(HTML) 14 Page - Linear Technology

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LTC3523/LTC3523-2
14
3523fb
TYPICAL APPLICATIONS
VIN1
SW1
SW2
FB2
MODE
PGOOD2
SHDN2
FB1
PGOOD1
SHDN1
VOUT
10pF
10μF
VOUT2
STEP-DOWN
OUTPUT
2.5V
200mA
768k
243k
VIN
3523 TA03
768k
243k
4.7μH
10μH
VIN2
LTC3523
VBAT
GND1 GND2 GND3
4.7μF
Li-Ion
VIN
2.5V TO 4.2V
VOUT1
STEP-UP
OUTPUT
5V
150mA
10μF
OFF ON
OFF ON
+
Li-Ion to 5V/150mA, 2.5V/200mA
LOAD CURRENT (mA)
0
0
10
30
40
50
100
70
1
10
3523 TA03b
20
80
90
60
0
1
10
1000
100
100
1000
STEP-UP
STEP-DOWN
VIN = 3.6V
VOUT1 = 5V
VOUT2 = 2.5V
fOSC = 1.2MHz
EFFICIENCY
P0WER
LOSS
Efficiency and Power Loss
vs Load Current



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