NCP5425DBR2

更新时间： 2024-11-22 22:29:23

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
22页	158K
描述
Dual Synchronous Buck Controller

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替代型号

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NCP5425DBR2 数据手册

NCP5425

Dual Synchronous

Buck Controller

The NCP5425 is a highly flexible dual buck controller with internal

gate drivers that can be used with two input power supplies and one or

two outputs in multiple configurations. The part contains all the

circuitry required for two independent synchronous dual NFET buck

regulators utilizing a feed forward voltage mode control method. The

NCP5425 can run from a single supply ranging from 4.6 to 12 volts

and support a single two phase or dual single phase outputs. When

used as a dual output controller, the second output tracks voltage

transients from the first. Power blanking for low noise applications is

supported as well as independent cycle−by−cycle current limiting. The

part is available in a 20 pin TSSOP package allowing the designer to

minimize PCB area.

http://onsemi.com

TSSOP−20

DB SUFFIX

CASE 948E

PIN CONNECTIONS AND

MARKING DIAGRAM

Features

• Operation Over 4.6 to 13.2 Volts

• Dual Synchronous Buck Design

GATEH1

GATEL1

GATEH2

GATEL2

• Configurable as a Single Two Phase Output or Two Single Phase

Outputs

GND

BST

IS+1

IS−1

NCP

5425

AWLYWW

OSC

• Programmable Power Sharing and Budgeting from Two Independent

Supplies

MODE

IS−2

IS+2

• 0.8 Volt "1% Reference for Low Voltage Outputs

• 1.5 A Peak Power Drive

REF2

FB1

FB2

COMP1

COMP2

• Switch Blanking for Noise Sensitive Applications through use of

OSC

= Assembly Location

WL = Wafer Lot

= Year

WW = Work Week

• Programmable Frequency, 150 kHz to 750 kHz Operation

• Programmable Soft Start

• Cycle−by−Cycle Overcurrent Protection

• Independent Programmable Current Limits

• 100% Duty Cycle for Fast Transient Response

• Internal Slope Compensation

ORDERING INFORMATION

†

Device

Package

Shipping

61 Units/Rail

• Out−of−Phase Synchronization between the Controllers

• Input Undervoltage Lockout

NCP5425DB

TSSOP−20

2500 Units/Reel

NCP5425DBR2

• On/Off Enable through use of the COMP Pins

• Power Supply Sequencing

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

Applications

• DDR Memory Power

• Graphics Cards

Semiconductor Components Industries, LLC, 2005

Publication Order Number:

January, 2005 − Rev. 6

NCP5425/D

12 3 4 5 6 7...22

中文翻译

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NCP5425DBR2 替代型号

型号	品牌	替代类型	描述	数据表
NCP5425DB	ONSEMI	完全替代	Dual Synchronous Buck Controller
NCP5425DBR2G	ONSEMI	类似代替	Dual Synchronous Buck Controller
NCP5425DBG	ONSEMI	类似代替	Dual Synchronous Buck Controller

与NCP5425DBR2相关器件

型号	品牌	获取价格	描述	数据表
NCP5425DBR2G	ONSEMI	获取价格	Dual Synchronous Buck Controller
NCP5426	ONSEMI	获取价格	LDO Regulator/Vibration Motor Driver
NCP5426/D	ETC	获取价格	LDO Regulator/Vibration Motor Driver
NCP5426_06	ONSEMI	获取价格	LDO Regulator/Vibration Motor Driver
NCP5426SN13T1	ONSEMI	获取价格	LDO Regulator/Vibration Motor Driver
NCP5426SN13T1G	ONSEMI	获取价格	LDO Regulator/Vibration Motor Driver
NCP5426SN13T2	ONSEMI	获取价格	LDO Regulator/Vibration Motor Driver
NCP5426SN13T2G	ONSEMI	获取价格	LDO Regulator/Vibration Motor Driver
NCP54XX	ONSEMI	获取价格	AC-DC Offline Switching Controllers/Regulators
NCP5500	ONSEMI	获取价格	500 mA Linear Regulator

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