feedback
评价本网页


需要帮助?


LM2596: Buck Regulator, Switching, 3.0 A

Overview
Specifications
Applications
Datasheet: 150 KHz 3A Step-Down Voltage Regulator
Rev. 0 (449.0kB)
»查看材料成分
»产品更改通知 (2)
Product Overview
产品说明
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.
特性   优势
     
  • 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
应用   终端产品
  • Simple high-efficiency step-down (buck) regulator
  • On-card switching regulators
  • Positive to negative converter
 
  • LCD-TV SMPS
技术文档及设计资源
数据表 (1) 评估板文档 (8)
封装图纸 (3)  
评估/开发工具信息
产品 状况 Compliance 简短说明 行动
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
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
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) : 4 to 8
Arrow   (Sat Jul 11 07:49:43 MST 2015) : 1300
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
市场订货至交货的时间(周) : 4 to 8
Arrow   (Sat Jul 11 07:49:43 MST 2015) : 16335
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
市场订货至交货的时间(周) : Contact Factory
ON Semiconductor   (2015-07-08) : 100
PandS   (2015-07-09) : <100
市场订货至交货的时间(周) : 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)
»查看材料成分
»产品更改通知 (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 
之前浏览的产品
清除列表