NCP5424

更新时间： 2024-09-18 22:50:59

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
20页	135K
描述
Dual Synchronous Buck Controller with Input Current Sharing

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NCP5424 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

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.

SO-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.

PIN CONNECTIONS AND

MARKING DIAGRAM

GATE(H)1

GATE(L)1

GND

GATE(H)2

GATE(L)2

BST

OSC

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.

IS+1

IS+2

FB- 2

IS-

FB+2

FB1

COMP1

COMP2

= Assembly Location

= Year

WL = Wafer Lot

Features

• Hiccup Mode Current Limit (Controller 1)

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

• Programmable Soft Start

WW = Work Week

• 100% Duty Cycle for Enhanced Transient Response

• 150 kHz to 600 kHz Programmable Frequency Operation

• Switching Frequency Set by Single Resistor

ORDERING INFORMATION

Device

Package

SO-16

Shipping

48 Units/Rail

NCP5424D

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

2500 Tape & Reel

NCP5424DR2

SO-16

Input Filter Requirement

• Undervoltage Lockout

Applications

• Video Graphics Card

• DDR Memory

• High Current (Two-Phase) Power Supplies

• Dual Output DC-DC Converters

Semiconductor Components Industries, LLC, 2003

Publication Order Number:

June, 2003 - Rev. 3

NCP5424/D

12 3 4 5 6 7...20

中文翻译

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与NCP5424相关器件

型号	品牌	获取价格	描述	数据表
NCP5424/D	ONSEMI	获取价格	Dual Synchronous Buck Controller with Input Current Sharing
NCP5424_05	ONSEMI	获取价格	Dual Synchronous Buck Controller with Input Current Sharing
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

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