SP6656_06 datasheet(7/16 Pages) SIPEX

Part #	SP6656

Description	High Efficiency 400mA Synchronous Buck Regulator with Dynamically Adjustable Voltage Output

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Manufacturer	SIPEX [Sipex Corporation]

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Date: 3/6/06

SP6656, 400mA Synchronous Buck Regulator with Dynamically Adjustable Voltage Output

Load Step, V

IN=4.2V, IOUT=0.1A to 0.4A, VOUT=3.3V

Load Step, V

IN=4.2V, IOUT=0.1A to 0.4A, VOUT=1.5V

Start up from SHDN, V

IN=5V ,IOUT=0.4A, VOUT=3.3V

Start up from SHDN, V

IN=5V, IOUT=0.4A, VOUT=1.5V

TYPICAL PERFORMANCE CHARACTERISTICS

Refer to the typical application schematic, TAMB= +27°C

V

IN Start up, VIN=4.2V, IOUT=0.4A, VOUT=3.3V

V

IN Start up,VIN=4.2V, IOUT=0.4A, VOUT=1.5V

CH.1=VIN

5.0V/DIV.

CH.4=IIN

0.5A/DIV.

CH.2=VOUT

0.5V/DIV.

CH.4=ILX

0.5A/DIV.

CH.2=VOUT

2.0V/DIV.

CH.1=VSHDN

5.0V/DIV.

CH.4=ILX

0.5A/DIV.

CH.2=VOUT

2.0V/DIV.

CH.1=VSHDN

5.0V/DIV.

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