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LTC3542IS6 数据表(PDF) 4 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) 4 Page - Linear Integrated Systems

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LTC3542
4
3542fa
Start-Up from Shutdown
Load Step
Reference Voltage
vs Temperature
Oscillator Frequency
vs Temperature
Oscillator Frequency
vs Supply Voltage
Output Voltage vs Supply Voltage
Output Voltage vs Load Current
RDS(ON) vs Input Voltage
RUN
2V/DIV
IL
500mA/DIV
VIN = 3.6V
VOUT = 1.8V
ILOAD = 500mA
FIGURE 3a CIRCUIT
400
μs/DIV
3542 G04
VOUT
1V/DIV
VOUT
100mV/DIV
AC COUPLED
IL
500mA/DIV
VIN = 3.6V
VOUT = 1.8V
ILOAD = 30mA TO 500mA
FIGURE 3a CIRCUIT
20
μs/DIV
3542 G05
ILOAD
500mA/DIV
Load Step
VOUT
100mV/DIV
AC COUPLED
IL
500mA/DIV
VIN = 3.6V
VOUT = 1.8V
ILOAD = 0mA TO 500mA
FIGURE 3a CIRCUIT
20
μs/DIV
3542 G06
ILOAD
500mA/DIV
TEMPERATURE (
°C)
–50
0.6100
0.6075
0.6050
0.6025
0.6000
0.5975
0.5950
0.5925
0.5900
0.5875
0.5850
0.5825
0.6125
0.6150
0
50
75
3542 G07
–25
25
100
125
INPUT VOLTAGE (V)
2
–0.5
–0.4
–0.2
–0.1
0
0.5
0.2
3
4
4.5
3542 G10
–0.3
0.3
0.4
0.1
2.5
3.5
5
5.5
6
VOUT = 1.8V
IOUT = 100mA
LOAD CURRENT (mA)
1
0
1.0
2.0
10
100
1000
3542 G11
–1.0
–0.5
0.5
1.5
–1.5
–2.0
Burst Mode
OPERATION
VIN = 3.6V
VOUT = 1.8V
PULSE SKIP
MODE
VIN (V)
1
0
0.1
0.3
0.4
0.5
5
0.9
3542 G12
0.2
3
26
47
0.6
0.7
0.8
SYNCHRONOUS
SWITCH
MAIN SWITCH
TEMPERATURE (
°C)
–50 –30 –10 10
30
50
70
90 110
1.8
1.9
2.1
2.2
2.3
2.7
3542 G08
2.0
2.4
2.5
2.6
SUPPLY VOLTAGE (V)
2.2
2.3
2.4
56
3542 G09
2.1
2.0
1.8
2
3
4
1.9
2.7
2.5
2.6
TYPICAL PERFORMANCE CHARACTERISTICS T
A = 25°C unless otherwise specified.


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