CS5307 datasheet(1/24 Pages) ONSEMI

Part #	CS5307

Description	Four?뭁hase VRM 9.0 Buck Controller

PDF	24 Pages

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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July, 2006 − Rev. 9

1

Publication Order Number:

CS5307/D

CS5307

Four−Phase VRM 9.0

Buck Controller

Multiphase controllers provide fast, accurate regulation with the

control features required to power the next generation of processors in

desktop, workstation and server applications. Combined with external

gate drivers and power components, the CS5307 implements a

compact, highly integrated buck converter. Enhanced V2™ control

inherently compensates for variations in both line and load. Current

sharing between phases is achieved by Peak Current Sharing.

The CS5307 includes Power Good with a programmable lower

threshold.

Applications include Embedded Processor Power and low

voltage/high current power supplies.

Features

• Switching Regulator Controller

− Lossless Current Sensing

− Enhanced V2 Control Method Provides Excellent Regulation

and Fast Transient Response

− Programmable 200 to 800 kHz Switching Frequency (Per Phase)

− Duty Cycle − 0% to 100%

− Programmable Adaptive Voltage Positioning Reduces Output

Capacitor Requirements

− Programmable Soft Start

• Accurate Current Sharing

• Protection Features

− Pulse−by−Pulse Current Limit for Each Phase

− Programmable Hiccup Overcurrent Protection

− All “1” DAC Code Fault

− Processor Overvoltage Protection through Bottom MOSFETs

− Undervoltage Lockout

• System Power Management

− 5−Bit DAC With 1.0% Tolerance Compatible with VRM 9.0

− Power Good Output

− Programmable Power Good Lower Threshold

− Guaranteed Startup at −20°C

PIN CONNECTIONS

MARKING DIAGRAM

A

= Assembly Location

WL

= Wafer Lot

YY

= Year

WW

= Work Week

SO−24L

DW SUFFIX

CASE 751E

1

24

1

CS5307

AWLYYWW

24

VID1

CSREF

VID0

CS4

PWRGDS

CS3

GATE4

CS2

GATE3

CS1

GATE2

ROSC

GATE1

OCSET

VCC

GND

VID2

VDRP

VID3

VFB

124

PWRGD

SS

VID4

COMP

Device

Package

Shipping

ORDERING INFORMATION

CS5307GDW24

SO−24L

30 Units/Rail

CS5307GDWR24

SO−24L

1000 Tape & Reel

http://onsemi.com

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