CS5323 datasheet(1/16 Pages) ONSEMI

Part #	CS5323

Description	Three?뭁hase Buck Controller with 5?묪it 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

July, 2006 − Rev. 7

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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