产品概述
描述
The L4940 series of three-terminal positive regulators is available in TO-220 and D²PAK packages and with several fixed output voltages, making it useful in a wide range of industrial and consumer applications. Thanks to their very low input/output voltage drop, these devices are particularly suitable for battery-powered equipment, reducing consumption and prolonging battery-life. Each type employs internal current limiting, anti-saturation circuit, thermal shutdown and safe area protection.-
所有功能
- Precise 5, 8.5, 12 V outputs
- Low dropout voltage (450 mV typ. at 1 A)
- Very low quiescent current
- Thermal shutdown
- Short-circuit protection
- Reverse polarity protection
精选 视频
All resources
| Resource title | Latest update |
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产品规格 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 08 Apr 2015 | 08 Apr 2015 |
应用手册 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 18 Oct 2019 | 18 Oct 2019 |
选型指南 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 16 Apr 2021 | 16 Apr 2021 |
手册 (2)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 15 Feb 2019 | 15 Feb 2019 | |||
| 19 Mar 2021 | 19 Mar 2021 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L4940
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
Footprints
3D models
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L4940D2T12-TR | 批量生产 | D2PAK | 工业 | Ecopack2 | |
| L4940D2T5-TR | 批量生产 | D2PAK | 工业 | Ecopack2 | |
| L4940V5 | 批量生产 | TO-220 | 工业 | Ecopack2 | |
| L4940V85 | 批量生产 | TO-220 | 工业 | Ecopack2 | |
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Country of Origin | Budgetary Price (US$)*/Qty | 更多信息 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||||
| L4940V5 | 5 distributors | Buy Direct | 批量生产 | EAR99 | NEC | Tube | TO-220 | -40 | 150 | 5 | 2 | 1.5 | CHINA | 0.578 / 1k | ||
| L4940D2T12-TR | 5 distributors | Buy Direct | 批量生产 | EAR99 | NEC | Tape And Reel | D2PAK | -40 | 150 | 12 | 2 | 1.5 | CHINA | 0.497 / 1k | ||
| L4940D2T5-TR | 5 distributors | Buy Direct | 批量生产 | EAR99 | NEC | Tape And Reel | D2PAK | -40 | 150 | 5 | 2 | 1.5 | CHINA | 0.497 / 1k | ||
| L4940V85 | 3 distributors | Buy Direct | 批量生产 | EAR99 | NEC | Tube | TO-220 | -40 | 150 | 8.5 | 2 | 1.5 | CHINA | 0.578 / 1k | ||
