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LTC3852 Datasheet(PDF) 8 Page - Linear Technology

Part # LTC3852
Description  Low Input Voltage, Synchronous Step-Down DC/DC Controller
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3852 Datasheet(HTML) 8 Page - Linear Technology

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LTC3852
8
3852f
TYPICAL PERFORMANCE CHARACTERISTICS
Charge Pump
SHDN LO-to-HI Threshold
vs Temperature
Charge Pump
SHDN HI-to-LO Threshold
vs Temperature
Charge Pump Short-Circuit
Current vs Supply Voltage
TEMPERATURE ( C)
–50
150
0
50
100
3852 G32
0.7
0.8
0.6
0.5
0.9
VIN = 3.2V
VIN = 2.4V
TEMPERATURE ( C)
–50
150
3852 G33
0
50
100
0.6
0.7
0.5
0.4
0.8
VIN = 3.2V
VIN = 2.4V
SUPPLY VOLTAGE (V)
350
300
250
200
150
100
50
0
3852 G34
1.5
2.0
2.5
3.0
3.5
4.0
4.5
DEVICE CYCLES
IN AND OUT OF
THERMAL SHUTDOWN
Charge Pump Load Regulation
Charge Pump Output Load
Capability at 4% Below Regulation
Charge Pump Effective Open-Loop
Output Resistance vs Temperature
3852 G35
LOAD CURRENT (mA)
0
5.20
5.10
5.00
4.90
4.80
4.70
4.60
4.50
300
100
200
400
500
VIN = 4.2V
VIN = 2.7V
VIN = 3.6V
3852 G36
SUPPLY VOLTAGE (V)
2.4
2.9
3.4
3.9
500
450
400
350
300
250
200
150
100
50
0
125°C
85°C
25°C
–45°C
TEMPERATURE ( C)
100
050
VIN = 2.7V
VOUT = 4.5V
–50
8
7
6
5
4



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