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LTC3548EKD-1-PBF Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3548EKD-1-PBF
Description  Dual Synchronous, Fixed Output 2.25MHz Step-Down DC/DC Regulator
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3548EKD-1-PBF Datasheet(HTML) 4 Page - Linear Technology

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LTC3548-1
4
35481fb
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Input Voltage
Oscillator Frequency
vs Temperature
Oscillator Frequency
vs Input Voltage
Output Voltage Error
vs Temperature
RDS(ON) vs Input Voltage
RDS(ON) vs Junction Temperature
Efficiency vs Load Current
Load Regulation
Line Regulation
TA = 25°C unless otherwise specified.
INPUT VOLTAGE (V)
2
80
90
6
3548-1 G04
70
60
3
4
5
2.5
3.5
4.5
5.5
100
IOUT = 1mA
IOUT = 10mA
IOUT = 100mA
IOUT = 800mA
75
85
65
95
2.5
2.4
2.3
2.2
2.1
2.0
TEMPERATURE (°C)
–50
25
75
3548-1 G05
–25
0
50
100
125
VIN = 3.6V
10
8
6
4
2
0
–2
–4
–6
–8
–10
INPUT VOLTAGE (V)
2
3548-1 G06
3
45
6
TEMPERATURE (°C)
–50
–1
–0.8
–0.4
–0.2
0
1
0.4
0
50
75
3548-1 G07
–0.6
0.6
0.8
0.2
–25
25
100
125
VIN = 3.6V
INPUT VOLTAGE (V)
1
500
450
400
350
300
250
200
46
3548-1 G08
2
3
57
MAIN
SWITCH
SYNCHRONOUS
SWITCH
JUNCTION TEMPERATURE (°C)
–50
550
500
450
400
350
300
250
200
150
100
25
75
3548-1 G09
–25
0
50
100
150
125
MAIN SWITCH
SYNCHRONOUS SWITCH
VIN = 3.6V
VIN = 4.2V
VIN = 2.7V
LOAD CURRENT (mA)
1
60
65
70
75
80
85
90
95
100
10
100
1000
3548-1 G11
VOUT1 = 1.8V
VOUT2 = 1.575V
LOAD CURRENT (mA)
1
0
1.0
2.0
10
100
1000
3548-1 G12
–1.0
–0.5
0.5
1.5
–1.5
–2.0
VOUT1 = 1.8V
VOUT2 = 1.575V
LOAD CURRENT (mA)
2.5
–0.5
–0.3
–0.1
0.1
3
3.5
4
4.5
3548-1 G15
5
0.3
0.5
–0.4
–0.2
0
0.2
0.4
5.5
VOUT1 = 1.8V
VOUT2 = 1.575V


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