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LM2596: Buck Regulator, Switching, 3.0 A

Overview
Specifications
Applications
Datasheet: 150 KHz 3A Step-Down Voltage Regulator
Rev. 0 (449.0kB)
»材料組成を表示
»製品変更通知 (2)
Product Overview
製品説明
The LM2596 series of Buck Switching Regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation.

Requiring a minimum number of external components, these Buck Switching Regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator.

The LM2596 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-lead TO-220 package with several different lead bend options, and a 5-lead D2PAK surface mount package.

A standard series of inductors are available from several different manufacturers optimized for use with the LM2596 series. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a guaranteed +/-4% tolerance on output voltage under specified input voltage and output load conditions, and +/-15% on the oscillator frequency. External shutdown is included, featuring typically 80 µA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions. See LM2595 for 1.0A and LM2594 for 0.5A.
特長   利点
     
  • Adjustable output voltage range, 1.2V to 37V +/-4% max over line and load conditions
 
  • Flexible to configure for different output voltages and applications
  • Available in TO-220 and D2PAK packages
 
  • Different mounting options
  • Guaranteed 3A output load current
 
  • High power designs
  • Input voltage range up to 40V
 
  • Can be used with several input voltage supplies (+12V, +24V, +36V)
  • Excellent line and load regulation specifications
 
  • Provides a stable power supply
  • 150 kHz fixed frequency internal oscillator
 
  • No external component required to set frequency
  • TTL shutdown capability
 
  • Easy to implement low power modes
  • Low power standby mode, Iq typically 80 µA
 
  • Power saving mode
  • Uses readily available standard inductors
 
  • Quick and easy implementation
  • Thermal shutdown and current limit
 
  • Additional protection against faults
アプリケーション   最終製品
  • Simple high-efficiency step-down (buck) regulator
  • On-card switching regulators
  • Positive to negative converter
 
  • LCD-TV SMPS
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 (8)
パッケージ図 (3)  
評価/開発ツール情報
製品 状態 Compliance 簡単な説明 アクション
LM2596ADPBCKGEVB Active
Pb-free
Step-Down Switching Regulator Evaluation Board
LM2596ATPBCKGEVB Active
Pb-free
Step-Down Switching Regulator Evaluation Board
Avnet (2015-07-09) : 1
Digikey (2015-07-09) : 2
Avnet (2015-07-09) : 7
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
LM2596DSADJG Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A D2PAK-5 936A-02 1 Tube 50 $1.9333
LM2596DSADJR4G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A D2PAK-5 936A-02 1 Tape and Reel 800 $1.9333
LM2596TADJG Last Shipments 
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A TO-220-5 314D-04 NA Tube 50  
LM2596TVADJG Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A TO-220-5 314B-05 NA Tube 50 $1.8666
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) : 4 to 8
Arrow   (Sat Jul 11 07:49:43 MST 2015) : 1300
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
マーケットリードタイム(週) : 4 to 8
Arrow   (Sat Jul 11 07:49:43 MST 2015) : 16335
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
マーケットリードタイム(週) : Contact Factory
ON Semiconductor   (2015-07-08) : 100
PandS   (2015-07-09) : <100
マーケットリードタイム(週) : 4 to 8
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
Datasheet: 150 KHz 3A Step-Down Voltage Regulator
Rev. 0 (449.0kB)
»材料組成を表示
»製品変更通知 (2)
Product Overview

Product Compliance Status Description Topology Control Mode VCC Min (V) VCC Max (V) VO Typ (V) IO Typ (A) Efficiency (%) fSW Typ (kHz) Package Type
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A   Step-Down   Voltage Mode   4.5   40   1.25 to 37   3   85   150   D2PAK-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A   Step-Down   Voltage Mode   4.5   40   1.25 to 37   3   85   150   D2PAK-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A   Step-Down   Voltage Mode   4.5   40   1.25 to 37   3   85   150   TO-220-5 
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