CM2500 查看數據表（PDF） - Champion Microelectronic

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CM2500

WIDE INPUT 2A STEP DOWN CONVERTER

Champion Microelectronic 

ORDERING INFORMATION

CM2500

WIDE INPUT 2A STEP DOWN CONVERTER

Part Number

CM2500GIS

Temperature Range

-40℃ ~ +85℃

Package

SOP-8

Packing

TAPE & REEL

ABSOLUTE MAXIMUM RATINGS

Input Voltage …………….……..……………… -0.3V to +25V

Output Current …………………….…… PD / (VIN - Vo) mA

Output Voltage ………………….…… GND-0.3V to VIN+0.3V

ESD Classification …………………………………………… B

OPERATING RATINGS

Ambient Temperature Range (TA) …..…..... -40℃ to +85℃

Junction Temperature Range ……...…... -40℃ to +150℃

PIN DESCRIPTION

Pin Number

1

2

3

4

5

6

7

8

Pin Name

BS

IN

SW

GND

FB

COMP

EN

N/C

Pin Description

Bootstrap. This pin acts as the positive rail for the high-side switch’s gate driver.

Connect a 10nF capacitor between BS and SW.

Input Supply. Bypass this pin to G with a low ESR capacitor. See Input Capacitor in

the Application Information section.

Switch Output. Connect this pin to the switching end of the inductor.

Ground.

Feedback Input. The voltage at this pin is regulated to 1.28V. Connect to the resistor

divider between output and ground to set output voltage.

Compensation Pin. See Stability Compensation in the Application Information section.

Enable Input. When higher than 1.85V, this pin turns the IC on. When lower than 1.7V,

this pin turns the IC off. Output voltage is discharged when the IC is off. When left

unconnected, EN is pulled up to 4.5V tip with a 2.5μA pullup current.

Not Connected.

2008/04/15 Rev1.0

Champion Microelectronic Corporation

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