Datasheet > NCP5424A

NCP5424A

更新时间： 2024-11-24 01:22:43

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
20页	134K
描述
Dual Synchronous Buck Controller

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NCP5424A 数据手册

NCP5424A

Dual Synchronous

Buck Controller with Input

Current Sharing

The NCP5424A is a flexible dual N−channel synchronous buck

controller utilizing V

control for fast transient response and

http://onsemi.com

excellent line and load regulation. This highly versatile controller can

be configured as a single two phase output converter that draws

programmable amounts of current from two different input voltages or

all current from one supply. The NCP5424A can also be configured as

two independent out−of−phase controllers.

SO−16

D SUFFIX

CASE 751B

Using the NCP5424A in a current sharing input configuration is

ideal for applications where more power is required than is available

from one supply, such as video cards or other plug−in boards. When

configured as a dual output controller, the output of one controller can

be divided down and used as the reference for the second controller.

This tracking capability is useful in applications such as Double Data

Rate (DDR) Memory power where the termination voltage must track

VDD.

PIN CONNECTIONS AND

MARKING DIAGRAM

GATE(H)1

GATE(L)1

GND

GATE(H)2

GATE(L)2

BST

OSC

The NCP5424A provides a cycle−to−cycle current limit allowing

the system to handle transient overcurrent events. In addition, the

NCP5424A provides Soft Start, undervoltage lockout, and built−in

adaptive FET nonoverlap time to prevent shoot through.

IS+1

IS+2

FB−2

IS−

FB+2

FB1

COMP1

COMP2

Features

= Assembly Location

= Year

• Cycle−to−Cycle Current Limit

• Programmable Soft Start

• 100% Duty Cycle for Enhanced Transient Response

• 150 kHz to 600 kHz Programmable Frequency Operation

WL = Wafer Lot

WW = Work Week

• Switching Frequency Set by Single Resistor

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

Input Filter Requirement

ORDERING INFORMATION

Device

Package

SO−16

Shipping

• Undervoltage Lockout

Applications

48 Units/Rail

NCP5424AD

2500 Tape & Reel

NCP5424ADR2

• Video Graphics Card

• DDR Memory

• High Current (Two−Phase) Power Supplies

• Dual Output DC−DC Converters

Semiconductor Components Industries, LLC, 2003

Publication Order Number:

August, 2003 − Rev. 0

NCP5424A/D

12 3 4 5 6 7...20

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与NCP5424A相关器件

型号	品牌	获取价格	描述	数据表
NCP5424A/D	ETC	获取价格	Dual Synchronous Buck Controller with Input Current Sharing
NCP5424AD	ONSEMI	获取价格	1.5A DUAL SWITCHING CONTROLLER, 750kHz SWITCHING FREQ-MAX, PDSO16, SO-16
NCP5424ADR2	ONSEMI	获取价格	Dual Synchronous Buck Controller
NCP5424D	ONSEMI	获取价格	Dual Synchronous Buck Controller with Input Current Sharing
NCP5424DG	ONSEMI	获取价格	Dual Synchronous Buck Controller with Input Current Sharing
NCP5424DG	ROCHESTER	获取价格	1.5A DUAL SWITCHING CONTROLLER, 750kHz SWITCHING FREQ-MAX, PDSO16, LEAD FREE, SOIC-16
NCP5424DR2	ROCHESTER	获取价格	1.5A DUAL SWITCHING CONTROLLER, 750kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16
NCP5424DR2	ONSEMI	获取价格	Dual Synchronous Buck Controller with Input Current Sharing
NCP5424DR2G	ONSEMI	获取价格	Dual Synchronous Buck Controller with Input Current Sharing
NCP5425	ONSEMI	获取价格	Dual Synchronous Buck Controller

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