CMPWR330

Rev. 3 | Page 2 of 13 | www.onsemi.com

Simplified Electrical Schematic

Typical Application Circuit

PIN DESCRIPTIONS

PIN(S)

NAME

DESCRIPTION

1

V

SBY

V

the deselect level (4.2V). If the V

a bypass capacitor may not be necessary. Otherwise a bypass filter capacitor in the range of 1µF

to 10µF will ensure adequate filtering.

2

V

CC

V

V

voltage falls below the V

power for the regulator output. An internal hysteresis voltage of 0.2V is used to prevent any

chatter during selection and deselection of V

kept below 0.3

Ω to ensure changeover disturbances do not exceed the hysteresis level.

If the connection to V

may not be necessary. Otherwise a bypass filter capacitor in the range of 1µF to 10µF will ensure

adequate filtering.

3

V

OUT

V

switch. This output requires a capacitance of 10µF to ensure regulator stability and minimize the

peak output disturbance during power supply changeover.

4

V

AUX

V

and the V

very low impedance connection directly between V

5-8

GND

The negative reference for all voltages. Also functions as a thermal path for heat dissipation.