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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
製品説明
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.
特長
 
  • 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
技術資料 & デザイン・リソース
データシート (1) 評価ボード文書 (9)
パッケージ図 (1)  
評価/開発ツール情報
製品 状態 Compliance 簡単な説明 アクション
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
供給状況 & サンプル
製品
状態
Compliance
内容
外形
MSL*
梱包形態
予算 価格/Unit
タイプ
Case Outline
タイプ
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
面実装デバイスためのモイスチャー・レベル(260°Cリフローでの鉛フリー測定、235°Cリフローでの鉛フリー以外測定)
マーケットリードタイム(週) : Contact Factory
マーケットリードタイム(週) : 17 to 20
Avnet   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
Datasheet: Dual Synchronous Buck Controller
Rev. 8 (172.0kB)
»信頼性データを表示する
»材料組成を表示
»製品変更通知 (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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