LTM4625EY-PBF 查看數據表（PDF） - Linear Technology

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LTM4625EY-PBF

20VIN , 5A Step-Down DC/DC µModule Regulator

Linear Technology 

Typical Performance Characteristics

Start-Up with No Load Current

Start-Up with 5A Load Current

LTM4625

Short-Circuit with No Load

Applied

VOUT

0.5V/DIV

IIN

2A/DIV

VOUT

0.5V/DIV

IIN

2A/DIV

VOUT

0.5V/DIV

IIN

500mA/DIV

5ms/DIV

4625 G09

VIN = 12V

VOUT = 1.5V

INPUT CAPACITOR = 22µF SANYO ELECTROLYTIC

CAPACITOR + 22µF CERAMIC CAPACITOR

OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR

SOFT-START CAPACITOR = 0.1µF

5ms/DIV

4625 G10

VIN = 12V

VOUT = 1.5V

INPUT CAPACITOR = 22µF SANYO ELECTROLYTIC

CAPACITOR + 22µF CERAMIC CAPACITOR

OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR

SOFT-START CAPACITOR = 0.1µF

20µs/DIV

4625 G11

VIN = 12V

VOUT = 1.5V

INPUT CAPACITOR = 22µF SANYO ELECTROLYTIC

CAPACITOR + 22µF CERAMIC CAPACITOR

OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR

Short-Circuit with 5A Load

Applied

Recovery from Short-Circuit with

No Load Applied

VOUT

0.5V/DIV

IIN

500mA/DIV

50µs/DIV

4625 G12

VIN = 12V

VOUT = 1.5V

INPUT CAPACITOR = 22µF SANYO ELECTROLYTIC

CAPACITOR + 22µF CERAMIC CAPACITOR

OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR

VOUT

0.5V/DIV

IIN

1A/DIV

20µs/DIV

4625 G13

VIN = 12V

VOUT = 1.5V

INPUT CAPACITOR = 22µF SANYO ELECTROLYTIC

CAPACITOR + 22µF CERAMIC CAPACITOR

OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR

Steady-State Output Voltage

Ripple

Start Into Pre-Biased Output

VOUT

5mV/DIV

AC-COUPLED

1µs/DIV

4625 G14

VIN = 12V

VOUT = 1.5V

INPUT CAPACITOR = 22µF SANYO ELECTROLYTIC

CAPACITOR + 22µF CERAMIC CAPACITOR

OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR

20MHz BW

VIN

5V/DIV

VOUT

0.5V/DIV

5ms/DIV

4625 G15

VIN = 12V

VOUT = 1.5V WITH 0.75V PREBIASED VOLTAGE

INPUT CAPACITOR = 22µF SANYO ELECTROLYTIC

CAPACITOR + 22µF CERAMIC CAPACITOR

OUTPUT CAPACITOR = 47µF CERAMIC CAPACITOR

4625f

For more information www.linear.com/LTM4625

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