CS5323 datasheet(1/16 Pages) ONSEMI

Part #	CS5323

Description	Three-Phase Buck Controller with 5-Bit DAC

PDF	16 Pages

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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1 / 16 page

August, 2002 – Rev. 6

1

Publication Order Number:

CS5323/D

CS5323

Three-Phase Buck

Controller with 5-Bit DAC

The CS5323 is a three–phase step down controller that incorporates

all control functions required to power next generation processors.

Proprietary multi–phase architecture guarantees balanced load current

distribution and reduces overall solution cost in high current

applications. Enhanced V2

™ control architecture provides the fastest

possible transient response, excellent overall regulation, and ease of

use.

The multi–phase architecture reduces input and output filter ripple,

allowing for a reduction in filter size and inductor values with a

corresponding increase in the output inductor current slew rate.

Features

• Enhanced V2 Control Method

• 5–Bit DAC with 1.0% Tolerance

• Adjustable Output Voltage Positioning

• Programmable Frequency Set by Single Resistor

• 200 kHz to 800 kHz Operation (Per Phase)

• Current Sensed through Sense Resistors, or Buck Inductors

• Adjustable Current Sense Threshold

• Hiccup Mode Current Limit

• Over–Voltage Protection through Synchronous MOSFET’s

• Individual Current Limits for Each Phase

• On–Board Current Sense Amplifiers

• 3.3 V, 1.0 mA Reference Output

• 5.0 V and/or 12 V Operation

• On/Off Control (through COMP Pin)

A

= Assembly Location

WL, L

= Wafer Lot

YY, Y

= Year

WW, W

= Work Week

Device

Package

Shipping

ORDERING INFORMATION

CS5323GDW20

SO–20L

37 Units/Rail

CS5323GDWR20

SO–20L

1000 Tape & Reel

COMP

VFB

VDRP

CS1

CS2

CS3

CSREF

VID0

VID1

VID2

VID3

VID4

ILIM

REF

ROSC

VCC

GATE1

GND

GATE2

GATE3

PIN CONNECTIONS AND

MARKING DIAGRAM

SO–20L

DW SUFFIX

CASE 751D

1

20

http://onsemi.com

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