LT3973IMSE-3.3-TRPBF 查看數據表（PDF） - Linear Technology
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LT3973IMSE-3.3-TRPBF
Linear Technology
LT3973IMSE-3.3-TRPBF Datasheet PDF : 24 Pages
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LT3973/LT3973-3.3/LT3973-5
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Catch Diode Leakage
250
VR = 12V
200
150
100
50
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3973 G28
Power Good Threshold
92
91
EN/UVLO Threshold
1.245
EN/UVLO RISING
1.220
90
1.195
89
1.170
88
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3973 G29
1.145
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3973 G30
Transient Load Response; Load
Current is Stepped from 50mA
(Burst Mode Operation) to 300mA
Transient Load Response; Load
Current is Stepped from 250mA
to 500mA
VOUT
100mV/DIV
IL
200mA/DIV
50µs/DIV
FRONT PAGE APPLICATION
VIN = 12V
VOUT = 5V
3973 G31
VOUT
100mV/DIV
IL
200mA/DIV
50µs/DIV
FRONT PAGE APPLICATION
VIN = 12V
VOUT = 5V
3973 G32
Switching Waveforms,
Burst Mode Operation
VSW
5V/DIV
IL
200mA/DIV
VOUT
10mV/DIV
5µs/DIV
FRONT PAGE APPLICATION
VIN = 12V
VOUT = 5V
ILOAD = 15mA
f = 600kHz
3973 G33
Switching Waveforms, Full
Frequency Continuous Operation
VSW
5V/DIV
IL
200mA/DIV
VOUT
5mV/DIV
1µs/DIV
FRONT PAGE APPLICATION
VIN = 12V
VOUT = 5V
ILOAD = 750mA
f = 600kHz
3973 G34
3973fb
8
For more information www.linear.com/LT3973
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