Datasheet > NCP5424_05

NCP5424_05

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
18页	137K
描述
Dual Synchronous Buck Controller with Input Current Sharing

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NCP5424_05 数据手册

NCP5424

Dual Synchronous

Buck Controller with Input

Current Sharing

The NCP5424 is a flexible dual N−Channel synchronous buck

controller utilizing V t 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 NCP5424 can also be configured as

two independent out−of−phase controllers.

SOIC−16

D SUFFIX

CASE 751B

Using the NCP5424 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.

The NCP5424 provides a cycle−to−cycle current limit on

Controller 2 allowing the system to handle transient overcurrent

events and a hiccup mode overcurrent protection on Controller 1

allowing lossless short circuit protection. In addition, the NCP5424

provides Soft−Start, undervoltage lockout, and built−in adaptive FET

nonoverlap time to prevent shoot through.

PIN CONNECTIONS AND

MARKING DIAGRAM

GATE(H)1

GATE(L)1

GND

GATE(H)2

GATE(L)2

BST

OSC

IS+1

IS+2

IS−

FB+2

FB1

FB−2

COMP1

COMP2

Features

= Assembly Location

= Year

• Hiccup Mode Current Limit (Controller 1)

• Cycle−to−Cycle Current Limit (Controller 2)

• Programmable Soft−Start

WL = Wafer Lot

WW = Work Week

• 100% Duty Cycle for Enhanced Transient Response

• 150 kHz to 600 kHz Programmable Frequency Operation

ORDERING INFORMATION

• Switching Frequency Set by Single Resistor

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

Input Filter Requirement

†

Device

NCP5424D

NCP5424DG

Package

Shipping

48 Units/Rail

SOIC−16

• Undervoltage Lockout

• Pb−Free Packages are Available*

SOIC−16

(Pb−Free)

2500 Tape & Reel

NCP5424DR2

SOIC−16

Applications

NCP5424DR2G

SOIC−16

(Pb−Free)

• Video Graphics Card

• DDR Memory

• High Current (Two−Phase) Power Supplies

• Dual Output DC−DC Converters

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

*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, 2005

Publication Order Number:

March, 2005 − Rev. 4

NCP5424/D

12 3 4 5 6 7...18

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与NCP5424_05相关器件

型号	品牌	获取价格	描述	数据表
NCP5424A	ONSEMI	获取价格	Dual Synchronous Buck Controller
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

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