Converters | LM2596

降压稳压器，开关，3.0A

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概览

LM2596降压开关稳压器是单片集成电路，为步降（降压）开关稳压器提供所有主动功能，能够驱动3.0A负载，具备优异的线路和负载调节功能。

这款降压开关稳压器最大程度减少外部组件数量，易于使用，包含内部频率补偿和一个固定频率振荡器。

LM2596系列运行时开关频率150kHz，因此比更低频率开关稳压器所需的滤波器尺寸更小。提供不同引线弯曲选项的标准5 引线TO-220封装，以及5引线D2PAK表面贴装封装。

搭配LM2596使用的标准电感器系列在几家不同电感器制造商均有提供。这一特性大大简化了开关模式电源的设计。

其他特性包括在指定输入电压和输出负载条件下保证输出电压的+/-4%容差范围，振荡器频率容差范围+/-15%。支持外部关断，待机电流80uA（典型值）。自我保护功能包括输出开关的两级频率以降低电流限制和过温关断功能以在故障环境下实现完全保护。查看LM2595的1.0A版本和LM2594的0.5A版本。

  • 简单高效步降（降压）稳压器
  • 板载开关稳压器
  • 正负转换器

  • LCD-TV SMPS

  • 可调版本输出电压范围：1.2V至37V，线路和负载条件下可承受最大容差±4%
  • TO-220和D2PAK封装可选
  • 额定输出负载电流3A
  • 输入电压范围可达40V
  • 优秀的线路和负载调节规格
  • 150kHz固定频率内部振荡器
  • TTL关断功能
  • 80µA 低功率待机模式，待机电流80uA（典型值）
  • 使用现成的标准电感器
  • 热关断和电流限制

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MSL Temp (°C)

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IO Typ (A)

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Reference Price

LM2596DSADJG

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Active

CAD Model

Pb

A

H

P

D2PAK-5

936A-02

1

260

TUBE

50

N

Step-Down

Voltage Mode

4.5

40

1.25

3

85

150

$1.1678

More Details

LM2596DSADJR4G

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Active

CAD Model

Pb

A

H

P

D2PAK-5

936A-02

1

260

REEL

800

N

Step-Down

Voltage Mode

4.5

40

1.25

3

85

150

$1.21

More Details

LM2596TVADJG

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Active

CAD Model

Pb

A

H

P

TO-220-5

314B-05

NA

0

TUBE

50

N

Step-Down

Voltage Mode

4.5

40

1.25

3

85

150

$1.1917

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可靠性数据

Die Related Summary Data

Device: LM2596DSADJG

Equivalent to wafer fab process: BP STD LINEAR

产品技术

产品技术

等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

BP STD LINEAR

10

12120914040

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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