CS5301 datasheet(1/20 Pages) ONSEMI

Part #	CS5301

Description	Three-Phase Buck Controller with Integrated Gate Drivers and Power Good

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Manufacturer	ONSEMI [ON Semiconductor]

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October, 2002 – Rev. 11

1

Publication Order Number:

CS5301/D

CS5301

Three-Phase

Buck Controller with

Integrated Gate Drivers and

Power Good

The CS5301 is a three–phase step down controller which

incorporates all control functions required to power high performance

processors and high current power supplies. 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 CS5301 multi–phase architecture reduces output voltage and

input current ripple, allowing for a significant reduction in inductor

values and a corresponding increase in inductor current slew rate. This

approach allows a considerable reduction in input and output capacitor

requirements, as well as reducing overall solution size and cost.

Features

• Enhanced V2 Control Method

• 5–Bit DAC with 1% Accuracy

• Adjustable Output Voltage Positioning

• 6 On–Board Gate Drivers

• 200 kHz to 800 kHz Operation Set by Resistor

• Current Sensed through Buck Inductors, Sense Resistors, or V–S

Control

• Hiccup Mode Current Limit

• 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)

• Power Good Output

Device

Package

Shipping

ORDERING INFORMATION

CS5301GDW32

SO–32L

22 Units/Rail

CS5301GDWR32

SO–32L

1000 Tape & Reel

PIN CONNECTIONS

SO–32L

DW SUFFIX

CASE 751P

MARKING DIAGRAM

A

= Assembly Location

WL, L

= Wafer Lot

YY, Y

= Year

WW, W = Work Week

CS5301

AWLYYWW

1

32

1

32

132

ROSC

COMP

VCCL

VFB

VCCL1

VDRP

GATE(L)1

CS1

GND1

CS2

Gate(H)1

CS3

VCCH12

CSREF

Gate(H)2

PWRGD

GND2

VID0

Gate(L)2

VID1

VCCL23

VID2

Gate(L)3

VID3

GND3

VID4

Gate(H)3

PWRGDS

VCCH3

ILIM

LGND

REF

http://onsemi.com

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