CS5422 datasheet(1/17 Pages) ONSEMI

Part #	CS5422

Description	Dual Out?뭥f?뭁hase Synchronous Buck Controller with Current Limit

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Manufacturer	ONSEMI [ON Semiconductor]

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July, 2006 − Rev. 7

1

Publication Order Number:

CS5422/D

CS5422

Dual Out−of−Phase

Synchronous

Buck Controller

with Current Limit

The CS5422 is a dual N−channel synchronous buck regulator

controller. It contains all the circuitry required for two independent

buck regulators and utilizes the V2™ control method to achieve the

fastest possible transient response and best overall regulation, while

using the least number of external components. The CS5422 features

out−of−phase synchronization between the channels, reducing the

input filter requirement. The CS5422 also provides undervoltage

lockout, Soft Start, built in adaptive FET non−overlap and hiccup

mode overcurrent protection. The part is available in a 16 Lead SO

Narrow or 24 Lead Fused SO Wide package allowing the designer to

minimize solution size.

Features

• V2 Control Topology

• Hiccup Mode Overcurrent Protection

• 150 ns Transient Response

• Programmable Soft Start

• 100% Duty Cycle for Enhanced Transient Response

• 150 kHz to 600 kHz Programmable Frequency Operation

• Switching Frequency Set by Single Resistor

• Out−Of−Phase Synchronization Between the Channels Reduces the

Input Filter Requirement

• Undervoltage Lockout

• Internally Fused Leads available in 24 Lead SO Wide Package

CS5422GDR16

A

= Assembly Location

WL, L

= Wafer Lot

YY, Y

= Year

WW, W = Work Week

Device

Package

Shipping

ORDERING INFORMATION

CS5422GD16

SO−16

48 Units/Rail

SO−16

2500 Tape & Reel

VFB1

COMP1

IS+1

GATE(H)1

PIN CONNECTIONS AND

MARKING DIAGRAMS

GATE(L)1

GND

BST

IS−1

SO−16

D SUFFIX

CASE 751B

1

16

GATE(H)2

GATE(L)2

VCC

ROSC

IS+2

IS−2

VFB2

COMP2

CS5422GDWFR24

CS5422GDWF24

SO−24L

31 Units/Rail

SO−24L

1000 Tape & Reel

SO−24L

DWF SUFFIX

CASE 751E

LGND

ROSC

BST

VCC

PGND

GATE(L)2

GATE(L)1

GATE(H)2

GATE(H)1

IS+2

IS+1

IS−2

IS−1

1

24

COMP2

COMP1

VFB2

VFB1

16

24

1

SO−16

SO−24L

http://onsemi.com

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