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LM2576: Buck Regulator, Switching, 3.0 A, 15 V

Overview
Specifications
Datasheet: Buck Regulator, Switching, 3.0 A, 15 V
Rev. 8 (275.0kB)
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»材料組成を表示
»製品変更通知 (7)
Product Overview
製品説明
The LM2576 Buck Switching Regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step-down switching regulator (buck converter). All circuits of this series are capable of driving a 3.0 A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjustable output version.

The Buck Switching Regulator is designed to minimize the number of external components to simplify the power supply design. Standard series of inductors optimized for use with the LM2576 are offered by several different inductor manufacturers.

Since the LM2576 converter is a switch-mode power supply, its efficiency is significantly higher in comparison with popular three-terminal linear regulators, especially with higher input voltages. In many cases, the power dissipated is so low that no heatsink is required or its size could be reduced dramatically.

A standard series of inductors optimized for use with the LM2576 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

The LM2576 features include a guaranteed +/-4% tolerance on output voltage within specified input voltages and output load conditions, and +/-10% on the oscillator frequency (+/-2% over 0C to 125C). External shutdown is included, featuring 80 uA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.
特長
 
  • 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range, 1.23 to 37 V +/-4%
    Maximum Over Line and Load Conditions
  • Guaranteed 3.0 A Output Current
  • Wide Input Voltage Range
  • Requires Only 4 External Components
  • 52 kHz Fixed Frequency Internal Oscillator
  • TTL Shutdown Capability, Low Power Standby Mode
  • High Efficiency
  • Uses Readily Available Standard Inductors
  • Thermal Shutdown and Current Limit Protection
  • Moisture Sensitivity Level (MSL) Equals 1
  • Pb-Free Packages are Available
アプリケーション
  • Simple High-Efficiency Step-Down (Buck) Regulator
  • Efficient Pre-Regulator for Linear Regulators
  • On-Card Switching Regulators
  • Positive to Negative Converter (Buck-Boost)
  • Negative Step-Up Converters
  • Power Supply for Battery Chargers
技術資料 & デザイン・リソース
チュートリアル (1) パッケージ図 (3)
データシート (1)  
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
LM2576D2T-005G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 5.0 V, 52 kHz D2PAK-5 936A-02 1 Tube 50 $1.9333
LM2576D2T-012G Last Shipments 
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 12 V, 52 kHz D2PAK-5 936A-02 1 Tube 50  
LM2576D2T-15G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 15.0 V, 52 kHz D2PAK-5 936A-02 1 Tube 50 $1.9333
LM2576D2T-3.3G Last Shipments 
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 3.3 V, 52 kHz D2PAK-5 936A-02 1 Tube 50  
LM2576D2T-ADJG Active 
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, Adjustable 1.23-37 V, 52 kHz D2PAK-5 936A-02 1 Tube 50 $1.9333
LM2576D2T-ADJR4G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, Adjustable 1.23-37 V, 52 kHz D2PAK-5 936A-02 1 Tape and Reel 800 $1.9333
LM2576D2TR4-012G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 12 V, 52 kHz D2PAK-5 936A-02 1 Tape and Reel 800 $1.9333
LM2576D2TR4-3.3G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 3.3 V, 52 kHz D2PAK-5 936A-02 1 Tape and Reel 800 $1.9333
LM2576D2TR4-5G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 5.0 V, 52 kHz D2PAK-5 936A-02 1 Tape and Reel 800 $1.9333
LM2576T-005G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 5.0 V, 52 kHz TO-220-5 314D-04 NA Tube 50 $1.8666
LM2576T-012G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 12 V, 52 kHz TO-220-5 314D-04 NA Tube 50 $1.8666
LM2576T-15G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 15.0 V, 52 kHz TO-220-5 314D-04 NA Tube 50 Contact Sales Office
LM2576T-3.3G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 3.3 V, 52 kHz TO-220-5 314D-04 NA Tube 50 $1.8666
LM2576T-ADJG Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, Adjustable 1.23-37 V, 52 kHz TO-220-5 314D-04 NA Tube 50 $1.8666
LM2576TV-012G Active 
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 12 V, 52 kHz TO-220-5 314B-05 NA Tube 50 $1.8666
LM2576TV-015G Active
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 15.0 V, 52 kHz TO-220-5 314B-05 NA Tube 50 Contact Sales Office
LM2576TV-3.3G Active 
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 3.3 V, 52 kHz TO-220-5 314B-05 NA Tube 50 Contact Sales Office
LM2576TV-5G Active 
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 5.0 V, 52 kHz TO-220-5 314B-05 NA Tube 50 $1.8666
LM2576TV-ADJG Active 
Pb-free
Halide free
Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, Adjustable 1.23-37 V, 52 kHz 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
Digikey   (2015-07-09) : <1K
FutureElectronics   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
PandS   (2015-07-09) : >1K
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) : 4 to 8
Arrow   (Sat Jul 11 07:58:32 MST 2015) : 3150
Mouser   (2015-07-09) : <1K
PandS   (2015-07-09) : <100
マーケットリードタイム(週) : Contact Factory
PandS   (2015-07-09) : <1K
マーケットリードタイム(週) : 4 to 8
Digikey   (2015-07-09) : <1K
FutureElectronics   (2015-07-09) : >10K
Mouser   (2015-07-09) : >1K
マーケットリードタイム(週) : 4 to 8
Arrow   (Sat Jul 11 07:58:32 MST 2015) : 2400
Avnet   (2015-07-09) : <1K
Digikey   (2015-07-09) : <1K
Mouser   (2015-07-09) : >1K
PandS   (2015-07-09) : >10K
マーケットリードタイム(週) : 2 to 4
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 17,600
PandS   (2015-07-09) : >1K
マーケットリードタイム(週) : 4 to 8
Avnet   (2015-07-09) : <1K
Digikey   (2015-07-09) : <1K
Mouser   (2015-07-09) : <100
PandS   (2015-07-09) : >1K
マーケットリードタイム(週) : 8 to 12
Avnet   (2015-07-09) : <1K
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 57,600
PandS   (2015-07-09) : >1K
マーケットリードタイム(週) : 2 to 4
Arrow   (Sat Jul 11 07:58:33 MST 2015) : 575
Avnet   (2015-07-09) : <100
Digikey   (2015-07-09) : <1K
FutureElectronics   (2015-07-09) : >1K
Mouser   (2015-07-09) : <1K
ON Semiconductor   (2015-07-08) : 4,900
マーケットリードタイム(週) : 2 to 4
Digikey   (2015-07-09) : <1K
FutureElectronics   (2015-07-09) : >1K
Mouser   (2015-07-09) : <1K
ON Semiconductor   (2015-07-08) : 26,800
PandS   (2015-07-09) : >1K
マーケットリードタイム(週) : 2 to 4
Digikey   (2015-07-09) : >1K
FutureElectronics   (2015-07-09) : <1K
Mouser   (2015-07-09) : <1K
ON Semiconductor   (2015-07-08) : 800
PandS   (2015-07-09) : >1K
マーケットリードタイム(週) : 2 to 4
Digikey   (2015-07-09) : <1K
Mouser   (2015-07-09) : <100
ON Semiconductor   (2015-07-08) : 22,750
マーケットリードタイム(週) : 4 to 8
Arrow   (Sat Jul 11 07:58:33 MST 2015) : 350
Avnet   (2015-07-09) : >1K
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
PandS   (2015-07-09) : >1K
マーケットリードタイム(週) : 8 to 12
Digikey   (2015-07-09) : <1K
Mouser   (2015-07-09) : <1K
マーケットリードタイム(週) : 8 to 12
Mouser   (2015-07-09) : <1K
PandS   (2015-07-09) : <100
マーケットリードタイム(週) : 2 to 4
ON Semiconductor   (2015-07-08) : 1,300
マーケットリードタイム(週) : 4 to 8
Arrow   (Sat Jul 11 07:58:33 MST 2015) : 100
Avnet   (2015-07-09) : <1K
Digikey   (2015-07-09) : <1K
FutureElectronics   (2015-07-09) : >1K
Mouser   (2015-07-09) : <1K
マーケットリードタイム(週) : 8 to 12
Arrow   (Sat Jul 11 07:58:33 MST 2015) : 373
Digikey   (2015-07-09) : <1K
FutureElectronics   (2015-07-09) : >1K
Mouser   (2015-07-09) : <1K
PandS   (2015-07-09) : <100
Datasheet: Buck Regulator, Switching, 3.0 A, 15 V
Rev. 8 (275.0kB)
»信頼性データを表示する
»材料組成を表示
»製品変更通知 (7)
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, 15 V, 3.0 A, 5.0 V, 52 kHz   Step-Down   Voltage Mode   7   40   5   3   85   52   D2PAK-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 15.0 V, 52 kHz   Step-Down   Voltage Mode   7   40   15   3   85   52   D2PAK-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, Adjustable 1.23-37 V, 52 kHz   Step-Down   Voltage Mode   7   40   1.23 to 37   3   85   52   D2PAK-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, Adjustable 1.23-37 V, 52 kHz   Step-Down   Voltage Mode   7   40   1.23 to 37   3   85   52   D2PAK-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 12 V, 52 kHz   Step-Down   Voltage Mode   7   40   12   3   85   52   D2PAK-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 3.3 V, 52 kHz    Step-Down   Voltage Mode   7   40   3.3   3   85   52   D2PAK-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 5.0 V, 52 kHz    Step-Down   Voltage Mode   7   40   5   3   85   52   D2PAK-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 5.0 V, 52 kHz    Step-Down   Voltage Mode   7   40   5   3   85   52   TO-220-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 12 V, 52 kHz    Step-Down   Voltage Mode   7   40   12   3   85   52   TO-220-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 15.0 V, 52 kHz    Step-Down   Voltage Mode   7   40   15   3   85   52   TO-220-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 3.3 V, 52 kHz    Step-Down   Voltage Mode   7   40   3.3   3   85   52   TO-220-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, Adjustable 1.23-37 V, 52 kHz    Step-Down   Voltage Mode   7   40   1.23 to 37   3   85   52   TO-220-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 12 V, 52 kHz    Step-Down   Voltage Mode   7   40   12   3   85   52   TO-220-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 15.0 V, 52 kHz    Step-Down   Voltage Mode   7   40   15   3   85   52   TO-220-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 3.3 V, 52 kHz    Step-Down   Voltage Mode   7   40   3.3   3   85   52   TO-220-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, 5.0 V, 52 kHz    Step-Down   Voltage Mode   7   40   5   3   85   52   TO-220-5 
 Pb-free 
 Halide free 
 Active     Buck Regulator, Switching, 3.0 A, 15 V, 3.0 A, Adjustable 1.23-37 V, 52 kHz    Step-Down   Voltage Mode   7   40   1.23 to 37   3   85   52   TO-220-5 
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