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LTC3542IS6 数据表(PDF) 5 Page - Linear Integrated Systems

部件名 LTC3542IS6
功能描述  500mA, 2.25MHz Synchronous Step-Down
Download  16 Pages
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制造商  LINEAR [Linear Integrated Systems]
网页  http://www.linearsystems.com
标志 LINEAR - Linear Integrated Systems

LTC3542IS6 数据表(HTML) 5 Page - Linear Integrated Systems

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LTC3542
5
3542fa
RDS(ON) vs Temperature
Switch Leakage vs Input Voltage
Efficiency vs Input Voltage
TEMPERATURE (
°C)
–50
0
0.1
0.3
0.4
0.5
50
0.9
3542 G13
0.2
0
–25
75
100
25
125
0.6
0.7
0.8
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
SYNCHRONOUS
SWITCH
MAIN SWITCH
Switch Leakage vs Temperature
TEMPERATURE (
°C)
–50
200
250
300
25
75
3542 G15
150
100
–25
0
50
100
125
50
0
MAIN SWITCH
SYNCHRONOUS SWITCH
VIN (V)
0
0
200
400
600
1
2
34
3542 G14
5
800
1000
100
300
500
700
900
6
SYNCHRONOUS
SWITCH
MAIN SWITCH
INPUT VOLTAGE (V)
2.5
100
90
80
70
60
50
40
30
45
3542 G16
3
3.5
4.5
5.5
IOUT = 500mA
IOUT = 100mA
IOUT = 10mA
IOUT = 1mA
IOUT = 0.1mA
VOUT = 1.8V
Burst Mode OPERATION
FIGURE 3a CIRCUIT
Efficiency vs Load Current
OUTPUT CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
0.1
10
100
1000
3542 G17
0
1
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
VOUT = 1.8V
Burst Mode OPERATION
FIGURE 3a CIRCUIT
Efficiency vs Load Current
Efficiency vs Load Current
OUTPUT CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
0.1
10
100
1000
3542 G18
0
1
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
VOUT = 1.2V
Burst Mode OPERATION
FIGURE 3a CIRCUIT
OUTPUT CURRENT (mA)
30
90
100
20
10
80
50
70
60
40
0.1
10
100
1000
3542 G19
0
1
Burst Mode
OPERATION
VIN = 3.6V
VOUT = 1.8V
FIGURE 3a CIRCUIT
PULSE SKIP
MODE
TYPICAL PERFORMANCE CHARACTERISTICS T
A = 25°C unless otherwise specified.


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