LTM4642IY Ver la hoja de datos (PDF) - Linear Technology

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componentes Descripción

Fabricante

LTM4642IY

20VIN, Dual 4A or Single 8A DC/DC µModule Regulator

Linear Technology 

Typical Performance Characteristics

(Refer to Figures 19 and 20) TA = 25°C, unless otherwise noted.

Output Ripple, 10mV Typical

1.5VOUT

10mV/DIV

2µs/DIV

4642 G19

12V TO 1.5V AT 4A

COUT = 100µF CERAMIC, 47µF CERAMIC

fSW = 800kHz

Shorted Output

PGOOD

5V/DIV

VSW2

20V/DIV

VOUT

0.5V/DIV

ISHORT

10A/DIV

VIN = 20V

VOUT = 1.5V

50µs/DIV

LTM4642

4642 G20

Start-Up, 20V to 1.5V at 4A

RUN2

5V/DIV

VSW2

20V/DIV

VOUT2

1V/DIV

DRVCC

INTVCC

5V/DIV

20ms/DIV

4642 G21

COUT = 100µF CERAMIC, 47µF CERAMIC

CSS = 0.1µF

Load Regulation and Current

Limit (No Airflow)

1.8

1.5

1.2

0.9

0.6

VOUT = 1.5V

fSW = 1MHz

MODE = CCM

0.3

4.5VIN

12VIN

20VIN

0

01234567

LOAD CURRENT (A)

4642 G22

For more information www.linear.com/LTM4642

4642fb

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