NCP5211

更新时间： 2024-11-23 04:37:55

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
13页	124K
描述
Low Voltage Synchronous Buck Controller

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NCP5211 数据手册

NCP5211

Low Voltage Synchronous

Buck Controller

The NCP5211 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

http://onsemi.com

MARKING

capable of driving high gate capacitance of low R

NFETs for

DS(on)

better efficiency. The NCP5211 is in a 14−pin package to allow the

designer added flexibility.

DIAGRAM

The NCP5211 provides overcurrent protection, undervoltage

lockout, Soft−Start and built in adaptive nonoverlap. The NCP5211

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 NCP5211 will operate over a 4.5 V

to 14 V range using either single or dual input voltage.

SOIC−14

D SUFFIX

CASE 751A

NCP5211xG

AWLYWW

Features

NCP5211x = Specific Device Code

• Switching Regulator Controller

= Assembly Location

= Wafer Lot

= Year

♦ N−Channel Synchronous Buck Design

♦ V Control Topology

= Work Week

= Pb−Free Package

♦ 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

PIN CONNECTIONS

GATE(H)

BST

PGND

GATE(L)

LGND

IS+

IS−

FFB

• System Power Management

COMP

SGND

♦ 5.0 V or 12 V Operation

OSC

♦ Undervoltage Lockout

♦ On/Off Control Through Use of the COMP Pin

• Pb−Free Packages are Available*

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

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

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

Publication Order Number:

April, 2006 − Rev. 0

NCP5211/D

12 3 4 5 6 7...13

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