LTC3538EDCB-TRPBF 데이터 시트보기 (PDF) - Linear Technology
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LTC3538EDCB-TRPBF Datasheet PDF : 16 Pages
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LTC3538
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted
Switch Pins Before Entering
Buck Mode
VOUT Ripple in Buck, Buck-Boost
and Boost Modes at 500mA Load
SW1
2V/DIV
SW2
2V/DIV
50ns/DIV
VIN = 3.9V
VOUT = 3.3V AT 500mA
VIN = 2.5V
VIN = 3.3V
3538 G04
VIN = 4.2V
1μs/DIV
VOUT = 3.3V, AC-COUPLED
20mV/DIV
COUT = 22μF
ILOAD = 500mA
3538 G05
Burst Mode Sleep Current vs
Temperature
45
40
35
30
25
20
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
3538 G16
Error Amplifier Source Current vs
Temperature
–12.5
–13.0
–13.5
–14.0
–14.5
–15.0
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
3538 G06
Oscillator Frequency vs
Temperature
1025
VIN = VOUT = 3.6V
1000
975
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
3538 G07
Feedback Voltage vs Temperature
1.010
1.005
1.000
0.995
0.990
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
3538 G08
Maximum Output Current
Capability vs VIN
1800
VOUT = 3.3V
1600
1400
1200
1000
800
600
400
200
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN (V)
3538 G17
Feedback Voltage Line
Regulation
0.4
VOUT = 3.3V
0.3
0.2
0.1
0
–0.1
–0.2
2.4
3.4
4.4
VIN (V)
5.4
3538 G09
Minimum Start-Up Voltage
2.3045
2.3040
2.3035
2.3030
2.3025
2.3020
2.3015
2.3010
2.3005
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
3538 G10
3538fb
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