CM2500 Datasheet, PDF (3/11 Pages) Champion Microelectronic Corp. – WIDE INPUT 2A STEP DOWN CONVERTER

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 …………………….…… P_D / (V_IN - Vo) mA
Output Voltage ………………….…… GND-0.3V to V_IN+0.3V
ESD Classification …………………………………………… B
OPERATING RATINGS
Ambient Temperature Range (T_A) …..…..... -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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