CS5211GDR14 データシートの表示（PDF） - ON Semiconductor

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CS5211GDR14

Low Voltage Synchronous Buck Controller

ON Semiconductor 

CS5211

Low Voltage Synchronous

Buck Controller

The CS5211 is a low voltage synchronous buck controller. It

contains all required circuitry for a synchronous buck converter using

external N−Channel MOSFETs. High current internal gate drivers are

capable of driving high gate capacitance of low RDS(on) NFETs for

better efficiency. The V2™ control architecture is used to achieve

unmatched transient response, the best overall regulation and the

simplest loop compensation. The CS5211 is in a 14−pin package to

allow the designer added flexibility.

The CS5211 provides overcurrent protection, undervoltage lockout,

Soft−Start and built in adaptive nonoverlap. The CS5211 also provides

adjustable fixed frequency range of 150 kHz to 750 kHz. This gives

the designer more flexibility to make efficiency and component size

compromises. The CS5211 will operate over a 4.5 V to 14 V range

using either single or dual input voltage.

Features

• Switching Regulator Controller

♦ N−Channel Synchronous Buck Design

♦ V2 Control Topology

♦ 200 ns Transient Response

♦ Programmable Fixed Frequency of 150 kHz−750 kHz

♦ 1.0 V 1.5% Internal Reference

♦ Lossless Inductor Sensing Overcurrent Protection

♦ Hiccup Mode Short Circuit Protection

♦ Programmable Soft−Start

♦ 40 ns GATE Rise and Fall Times (3.3 nF Load)

♦ 70 ns Adaptive FET Nonoverlap Time

♦ Differential Remote Sense Capability

• System Power Management

♦ 5.0 V or 12 V Operation

♦ Undervoltage Lockout

♦ On/Off Control Through Use of the COMP Pin

• Pb−Free Packages are Available*

http://onsemi.com

SOIC−14

D SUFFIX

CASE 751A

MARKING DIAGRAM

14

CS5211xG

AWLYWW

1

CS5211x

A

WL

Y

WW

G

= Specific Device Code

x= E or G

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

PIN CONNECTIONS

1

GATE(H)

BST

LGND

VFFB

VFB

COMP

SGND

PGND

GATE(L)

VC

IS+

IS−

VCC

ROSC

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

© Semiconductor Components Industries, LLC, 2006

1

July, 2006 − Rev. 7

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

Publication Order Number:

CS5211/D

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