CS5303 datasheet(7/19 Pages) ONSEMI

Part #	CS5303

Description	Three?뭁hase Buck Controller with Integrated Gate Drivers

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Manufacturer	ONSEMI [ON Semiconductor]

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CS5303

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PACKAGE PIN DESCRIPTION (continued)

PACKAGE PIN #

FUNCTION

PIN SYMBOL

28 Lead SO Wide

FUNCTION

PIN SYMBOL

14

REF

Reference output. Decouple with 0.1 μF to GndL2

15

VCCH3

Power for Gate(H)3.

16

Gate(H)3

High side driver #3.

17

Gnd3

Return for #3 drivers.

18

Gate(L)3

Low side driver #3.

19

VCCL23

Power for Gate(L)2 and Gate(L)3.

20

Gate(L)2

Low side driver #2.

21

GndL2

Return for #2 driver, internal control circuits and IC substrate

connection.

22

Gate(H)2

High side driver #2.

23

VCCH12

Power for Gate(H)1 and Gate(H)2. UVLO Sense for High

Side Driver supply connects to this pin.

24

Gate(H)1

High side driver #1.

25

Gnd1

Return for #1 drivers.

26

Gate(L)1

Low side driver #1.

27

VCCLL1

Power for internal control circuits and Gate(L)1. UVLO Sense

for Logic and Low Side Driver supply connects to this pin.

28

ROSC

A resistor from this pin to ground sets operating frequency

and VFB bias current.

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CS5303 Datasheet(PDF) 7 Page - ON Semiconductor

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