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LM2576: 降压稳压器,开关,3.0 A,15 V

Datasheet: 3.0 A, 15 V, Step-Down Switching Regulator
Rev. 8 (275.0kB)
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LM2576 降压开关稳压器是单片集成电路,适用于步降开关稳压器(降压转换器)的简便设计。此系列的所有电路都可以驱动 3.0 A 负载,且具有卓越的线路和负载调节。此类器件提供 3.3 V、5.0 V、12 V、15 V 固定输出电压和可调输出版本。该降压开关稳压器适用于最大程度减少外部部件数量,可简化电源设计。适用于 LM2576 的标准电感器系列由若干不同电感器制造商提供。因为 LM2576 转换器是一款开关模式电源,其能效比受欢迎的三端子线性稳压器要高很多,尤其对于更高输入电压更是如此。在很多情况下,功耗非常低,以至于无需进行散热,或者其尺寸可以大幅减小。适用于 LM2576 的标准电感器系列由若干不同制造商提供。此功能大大简化了开关模式电源的设计。LM2576 功能包括指定输入电压和输出负载条件下保证输出电压的 +/-4% 允差范围,振荡器频率为 +/-10%(0C 至 125C 范围为 +/-2%)。包含了外部关断,待机电流为 80 uA(典型值)。输出开关包括按循环的电流限制以及高温关断,实现故障条件下的完整保护。
特性
 
  • 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
应用
  • 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
技术文档及设计资源
培训教材 (1) 封装图纸 (3)
数据表 (1)  
Availability & Samples
Specifications
Interactive Block Diagram
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
Temperature
类型
数量
LM2576D2T-005G Active
Pb-free
Halide free
LM2576, 3.0 A, 5.0 V, 52 kHz D2PAK-5 936A-02 1 260 Tube 50 $1.168
LM2576D2T-012G Obsolete 
Pb-free
Halide free
LM2576, 3.0 A, 12 V, 52 kHz D2PAK-5 936A-02 1 260 Tube 50  
LM2576D2T-15G Active
Pb-free
Halide free
LM2576, 3.0 A, 15.0 V, 52 kHz D2PAK-5 936A-02 1 260 Tube 50 $1.2466
LM2576D2T-3.3G Obsolete 
Pb-free
Halide free
LM2576, 3.0 A, 3.3 V, 52 kHz D2PAK-5 936A-02 1 260 Tube 50  
LM2576D2T-ADJG Active
Pb-free
Halide free
LM2576, 3.0 A, Adjustable 1.23-37 V, 52 kHz D2PAK-5 936A-02 1 260 Tube 50 $1.2466
LM2576D2T-ADJR4G Active
Pb-free
Halide free
LM2576, 3.0 A, Adjustable 1.23-37 V, 52 kHz D2PAK-5 936A-02 1 260 Tape and Reel 800 $1.2466
LM2576D2TR4-012G Active
Pb-free
Halide free
LM2576, 3.0 A, 12 V, 52 kHz D2PAK-5 936A-02 1 260 Tape and Reel 800 $1.9333
LM2576D2TR4-3.3G Active
Pb-free
Halide free
LM2576, 3.0 A, 3.3 V, 52 kHz D2PAK-5 936A-02 1 260 Tape and Reel 800 $1.9333
LM2576D2TR4-5G Active
Pb-free
Halide free
LM2576, 3.0 A, 5.0 V, 52 kHz D2PAK-5 936A-02 1 260 Tape and Reel 800 $1.2466
LM2576T-005G Active
Pb-free
Halide free
LM2576, 3.0 A, 5.0 V, 52 kHz TO-220-5 314D-04 NA Tube 50 $1.1784
LM2576T-012G Active
Pb-free
Halide free
LM2576, 3.0 A, 12 V, 52 kHz TO-220-5 314D-04 NA Tube 50 $0.9777
LM2576T-15G Active
Pb-free
Halide free
LM2576, 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
LM2576, 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
LM2576, 3.0 A, Adjustable 1.23-37 V, 52 kHz TO-220-5 314D-04 NA Tube 50 $1.21
LM2576TV-012G Active
Pb-free
Halide free
LM2576, 3.0 A, 12 V, 52 kHz TO-220-5 314B-05 NA Tube 50 $0.9262
LM2576TV-015G Active
Pb-free
Halide free
LM2576, 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
LM2576, 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
LM2576, 3.0 A, 5.0 V, 52 kHz TO-220-5 314B-05 NA Tube 50 $0.9262
LM2576TV-ADJG Active
Pb-free
Halide free
LM2576, 3.0 A, Adjustable 1.23-37 V, 52 kHz TO-220-5 314B-05 NA Tube 50 $1.21
市场订货至交货的时间(周) : 2 to 4
PandS   (2020-09-14 00:00) : >1K
FutureElectronics   (2020-08-19 00:00) : <1K
市场订货至交货的时间(周) : Contact Factory
市场订货至交货的时间(周) : Contact Factory
PandS   (2020-09-14 00:00) : <100
市场订货至交货的时间(周) : Contact Factory
PandS   (2020-09-14 00:00) : <1K
市场订货至交货的时间(周) : 8 to 12
FutureElectronics   (2020-08-19 00:00) : <1K
市场订货至交货的时间(周) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : >10K
市场订货至交货的时间(周) : 17 to 20
FutureElectronics   (2020-08-19 00:00) : <1K
PandS   (2020-09-14 00:00) : >1K
市场订货至交货的时间(周) : 13 to 16
PandS   (2020-09-14 00:00) : >1K
FutureElectronics   (2020-08-19 00:00) : <1K
市场订货至交货的时间(周) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
FutureElectronics   (2020-08-19 00:00) : >1K
市场订货至交货的时间(周) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
Avnet   (2020-08-19 00:00) : <1K
市场订货至交货的时间(周) : 17 to 20
FutureElectronics   (2020-08-19 00:00) : <1K
PandS   (2020-09-14 00:00) : >1K
Avnet   (2020-08-19 00:00) : <1K
市场订货至交货的时间(周) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : <1K
PandS   (2020-09-14 00:00) : >1K
市场订货至交货的时间(周) : 2 to 4
市场订货至交货的时间(周) : 17 to 20
PandS   (2020-09-14 00:00) : >1K
Avnet   (2020-08-19 00:00) : <100
市场订货至交货的时间(周) : 2 to 4
市场订货至交货的时间(周) : Contact Factory
PandS   (2020-09-14 00:00) : <100
市场订货至交货的时间(周) : 2 to 4
市场订货至交货的时间(周) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : <1K
Avnet   (2020-08-19 00:00) : <1K
市场订货至交货的时间(周) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : <1K
PandS   (2020-09-14 00:00) : <100

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
VCC Min (V)
VCC Max (V)
VO Typ (V)
IO Typ (A)
Efficiency (%)
fSW Typ (kHz)
Package Type
LM2576D2T-005G  
 $1.168 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
5
3
85
52
D2PAK-5
LM2576D2T-15G  
 $1.2466 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
15
3
85
52
D2PAK-5
LM2576D2T-ADJG  
 $1.2466 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
1.23 to 37
3
85
52
D2PAK-5
LM2576D2T-ADJR4G  
 $1.2466 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
1.23 to 37
3
85
52
D2PAK-5
LM2576D2TR4-012G  
 $1.9333 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
12
3
85
52
D2PAK-5
LM2576D2TR4-3.3G  
 $1.9333 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
3.3
3
85
52
D2PAK-5
LM2576D2TR4-5G  
 $1.2466 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
5
3
85
52
D2PAK-5
LM2576T-005G  
 $1.1784 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
5
3
85
52
TO-220-5
LM2576T-012G  
 $0.9777 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
12
3
85
52
TO-220-5
LM2576T-15G  
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
15
3
85
52
TO-220-5
LM2576T-3.3G  
 $1.8666 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
3.3
3
85
52
TO-220-5
LM2576T-ADJG  
 $1.21 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
1.23 to 37
3
85
52
TO-220-5
LM2576TV-012G  
 $0.9262 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
12
3
85
52
TO-220-5
LM2576TV-015G  
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
15
3
85
52
TO-220-5
LM2576TV-3.3G  
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
3.3
3
85
52
TO-220-5
LM2576TV-5G  
 $0.9262 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
5
3
85
52
TO-220-5
LM2576TV-ADJG  
 $1.21 
Pb
H
 Active   
Step-Down
Voltage Mode
7
40
1.23 to 37
3
85
52
TO-220-5
外形
314D-04    314B-05    936A-02   
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