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NCP5425: Dual Synchronous Buck Controller

Overview
Specifications
Datasheet: Dual Synchronous Buck Controller
Rev. 8 (172.0kB)
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Product Overview
产品说明
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 mutiple 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.
特性
 
  • Operation Over 4.6 to 13.2 Volts
  • Dual Synchronous Buck Design
  • Programmable Power Sharing and Budgeting from Two Independent Supplies
  • 0.8 Volt +/- 1% Reference for Low Voltage Outputs
  • 1.5A Peak Power Drive
  • Switch Blanking for Noise Sensitive Applications through use of ROSC Pin
  • Programmable Frequency, 150 kHz to 750 kHz Operation
  • Programmable Soft-Start
  • Cycle-to-Cycle Overcurrent Protection
  • Independent Programmable Current Limits
  • 100% Duty Cycle for Fast Transient Response
  • Internal Slope Compensation
  • Out-of-Phase Synchronization between the Controllers
  • Configurable as a Single Two Phase Output or Two Single Phase Outputs
  • These are Pb-Free Devices
  • Input Undervoltage Lockout
  • On/Off Enable through use of the COMP Pins
  • Power Supply Sequencing
技术文档及设计资源
数据表 (1) 评估板文档 (9)
封装图纸 (1)  
评估/开发工具信息
产品 状况 Compliance 简短说明 行动
NCP5425DOEVB Active
Dual Input/Output Buck Controller Evaluation Board
NCP5425SOEVB Active
Buck Controller Evaluation Board
Avnet (2015-07-09) : 2
Digikey (2015-07-09) : 2
Avnet (2015-07-09) : 3
Digikey (2015-07-09) : 2
供货情况和样品
产品
状况
Compliance
具体说明
封装
MSL*
容器
预算价格 (1千个数量的单价)
类型
外形
类型
数量
NCP5425DBG Last Shipments 
Pb-free
Halide free
Dual Synchronous Buck Controller TSSOP-20 948E-02 1 Tube 75  
NCP5425DBR2G Active
Pb-free
Halide free
Dual Synchronous Buck Controller TSSOP-20 948E-02 1 Tape and Reel 2500 $0.8
表面贴装器件的潮湿敏感度等级(MSL)(260°C回流温度时测量无铅,235°C回流温度时测量含铅)
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : 17 to 20
Avnet   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
Datasheet: Dual Synchronous Buck Controller
Rev. 8 (172.0kB)
»浏览可靠性数据
»查看材料成分
»产品更改通知 (3)
Product Overview

Product Compliance Status Description Topology Phases Control Mode VCC Min (V) VCC Max (V) fSW Typ (kHz) tres Typ (ns) Package Type
 Pb-free 
 Halide free 
 Active     Dual Synchronous Buck Controller   Step-Down   1   V2   4.75   13.2   750   200   TSSOP-20 
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