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LTC3544 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3544
Description  Quad Synchronous Step-Down Regulator
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3544 Datasheet(HTML) 6 Page - Linear Technology

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LTC3544
6
3544fa
VOUT100
1mV/DIV
VOUT200A
1mV/DIV
VOUT200B
1mV/DIV
VOUT300
50mV/DIV
40
μs/DIV
VIN = 3.6V
TA = 25°C
300mA LOAD STEP ON VOUT300
OTHER CHANNELS LOADED 50% OF MAXIMUM
3544 G17
TYPICAL PERFORMANCE CHARACTERISTICS
Load Step Response
100mA Channel
Load Step Crosstalk
VOUT100
50mV/DIV
AC COUPLED
IL
100mA/DIV
ILOAD
100mA/DIV
20
μs/DIV
VIN = 3.6V
VOUT = 1.2V
TA = 25°C
ILOAD = 400μA TO 100mA
3544 G16
PFET RDS(ON) vs Temperature
NFET RDS(ON) vs Temperature
TEMPERATURE (
°C)
–50
0
0.1
0.3
0.4
0.5
1.0
0.7
–10
30
50
3544 G18
0.2
0.8
0.9
0.6
–30
10
70
90
VIN = 3.6V
300
200B
200A
100
TEMPERATURE (
°C)
–50
0
0.2
0.3
0.4
0.5
0.6
0.7
0
50
3544 G19
0.8
0.9
1.0
VIN = 3.6V
0.1
100
300
200B
200A
100
PFET RDS(ON) vs Supply Voltage
NFET RDS(ON) vs Supply Voltage
VIN (V)
2
0
0.2
0.4
0.6
0.8
34
5
6
3544 G16
1.0
1.2
2.5
3.5
4.5
5.5
300
200B
200A
100
TA = 25°C
VIN (V)
2
0
0.1
0.3
0.4
0.5
1.0
0.7
3
4
3544 G17
0.2
0.8
0.9
0.6
5
6
300
200B
200A
100
TA = 25°C



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