LT3970IMS-3.3-TRPBF 查看數據表（PDF） - Linear Technology

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LT3970IMS-3.3-TRPBF

40V, 350mA Step-Down Regulator with 2.5µA Quiescent Current and Integrated Diodes

Linear Technology 

LT3970/LT3970-3.3/LT3970-5

TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.

EN Threshold

1.050

1.025

Transient Load Response; Load

Current is Stepped from 10mA

(Burst Mode Operation) to 110mA

Transient Load Response; Load

Current is Stepped from 100mA

to 200mA

VOUT

100mV/DIV

VOUT

100mV/DIV

1.000

IL

100mA/DIV

IL

100mA/DIV

0.975

0.950

–50 –25 0 25 50 75 100 125 150

TEMPERATURE (°C)

3970 G23

100μs/DIV

FRONT PAGE APPLICATION

VIN = 12V

VOUT = 5V

3970 G24

100μs/DIV

FRONT PAGE APPLICATION

VIN = 12V

VOUT = 5V

3970 G25

Switching Waveforms,

Burst Mode Operation

VSW

5V/DIV

IL

100mA/DIV

VOUT

5mV/DIV

2μs/DIV

FRONT PAGE APPLICATION

VIN = 12V

VOUT = 5V

ILOAD = 10mA

3970 G26

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 = 350mA

3970 G27

3970fa

7

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