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전자부품 반도체 검색엔진( 무료 PDF 다운로드 ) - 데이터시트뱅크

LTC3542EDC-1-PBF 데이터 시트보기 (PDF) - Linear Technology

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LTC3542EDC-1-PBF Datasheet PDF : 16 Pages
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LTC3542-1
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise specified.
Output Voltage vs Supply Voltage
1.0
0.8
IOUT = 100mA
FIGURE 3a CIRCUIT
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
2
3
4
5
6
INPUT VOLTAGE (V)
35421 G10
RDS(ON) vs Temperature
0.9
0.8
0.7
0.6
MAIN SWITCH
0.5
0.4
0.3
SYNCHRONOUS
SWITCH
0.2
0.1
0
–50 –25
VIN = 3.6V
VIN = 4.2V
0 25 50 75 100 125
TEMPERATURE (°C)
35421 G13
Efficiency vs Input Voltage
100
90
80
70
60
50
IOUT = 0.1mA
IOUT = 1mA
40
IOUT = 10mA
IOUT = 100mA
IOUT = 500mA
30
3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
35421 G16
Output Voltage vs Load Current
2.0
VIN = 3.6V
1.5 VOUT = 2.8V
1.0
0.5
Burst Mode OPERATION
0
PULSE SKIP
–0.5
–1.0
–1.5
–2.0
1
10
100
LOAD CURRENT (mA)
1000
35421 G11
Switch Leakage vs Input Voltage
1000
900
800
700
600
500
MAIN SWITCH
400
300
200
SYNCHRONOUS
SWITCH
100
0
0
1
2
3
4
5
6
VIN (V)
35421 G14
Efficiency vs Load Current
100
VIN = 3.6V
90
80
VIN = 4.2V
70
60
50
40
30
20
10
FIGURE 3a CIRCUIT
0
0.1
1
10
100
LOAD CURRENT (mA)
1000
35421 G17
RDS(ON) vs Input Voltage
0.9
0.8
0.7
0.6
MAIN SWITCH
0.5
0.4
0.3
SYNCHRONOUS
0.2
SWITCH
0.1
0
1
2
3
4
5
6
7
VIN (V)
35421 G12
Switch Leakage vs Temperature
300
250
200
150
100
50
MAIN SWITCH
SYNCHRONOUS SWITCH
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
35421 G15
Efficiency vs Load Current
100
VIN = 3.6V
VOUT = 2.8V
90
80
Burst Mode
PULSE SKIP
OPERATION
70
60
50
0.1
1
10
100
LOAD CURRENT (mA)
1000
35421 G18
35421f
5

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