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LTC3543 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3543
Description  600mA Synchronous Step Down Buck Regulator with PLL, Soft-Start and Spread Spectrum
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3543 Datasheet(HTML) 4 Page - Linear Technology

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LTC3543
4
3543f
INPUT VOLTAGE (V)
2.5
1.8
2.0
2.2
2.4
3.0
3.5
4.0
4.5
3543 G10
5.0
2.6
2.8
1.9
2.1
2.3
2.5
2.7
5.5
TEMPERATURE (
°C)
–40
2.25
2.30
2.35
125
3543 G11
2.15
2.00
–10 5
–25
20
50
35
80
65
110
95
2.40
2.20
2.10
2.05
VIN = 3.6V
OUTPUT VOLTAGE (V)
0
1.52
1.54
1.56
800
3543 G12
1.50
1.48
1.46
200
400
600
1000
VIN = 3.6V
VIN = 2.7V
VIN = 4.2V
INPUT VOLTAGE (V)
2.5
594
608
610
612
3.5
4.5
5.0
3543 G13
590
604
598
600
592
606
588
602
596
3.0
4.0
5.5
TEMPERATURE (
°C)
–40
588
592
596
600
604
612
–10
20
50
80
3543 G14
110 125
–25
535
65
95
608
590
594
598
602
610
606
VIN = 3.6V
TEMPERATURE (
°C)
–40
500
600
700
125
3543 G15
300
0
–10 5
–25
20
50
35
80
65
110
95
800
400
200
100
VIN = 5.5V
RUN = 0V
SYNCHRONOUS SWITCH
MAIN SWITCH
INPUT VOLTAGE (V)
3543 G16
ILOAD = 0A
VOUT = 1.5V
PULSE SKIP MODE
Burst Mode OPERATION
2.5
0
100
200
300
400
3.0
3.5
4.0
4.5
5.0
5.5
TEMPERATURE (
°C)
–40
250
300
350
125
3543 G17
150
0
–10 5
–25
20
50
35
80
65
110
95
400
200
100
50
INPUT VOLTAGE (V)
2.5
0
200
400
600
3.0
3.5
4.0
4.5
3543 G18
5.0
800
1000
100
300
500
700
900
5.5
RUN = 0V
SYNCHRONOUS SWITCH
MAIN SWITCH
Switching Frequency
vs Input Voltage (VIN)
Switching Frequency
vs Temperature
Output Voltage vs Load Current
Feedback Voltage (VFB)
vs Input Voltage (VIN)
Feedback Voltage (VFB) vs
Temperature
Switch Leakage (ISW) vs
Temperature
Dynamic Supply Current
vs Input Voltage (VIN)
Dynamic Supply Current
vs Temperature
Switch Leakage (ISW) vs Input
Voltage (VIN)
TYPICAL PERFOR A CE CHARACTERISTICS T
A = 25°C unless otherwise noted.



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