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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.
主要特性
- 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
产品规格 (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 13 Apr 2015 |
13 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 | |||
|---|---|---|---|---|
| 25 Mar 2020 |
25 Mar 2020
|
手册 (2)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 15 Feb 2019 |
15 Feb 2019
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| 26 Feb 2020 |
26 Feb 2020
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CAD/EDA Symbols, Footprints and 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 | 10 distributors | Buy Direct |
批量生产
|
EAR99 | NEC | Tube | TO-220 | -40 | 150 | 5 | 2 | 1.5 | CHINA | 0.578 / 1k | ||
| L4940D2T12-TR | 8 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 | 7 distributors | Buy Direct |
批量生产
|
EAR99 | NEC | Tape And Reel | D2PAK | -40 | 150 | 5 | 2 | 1.5 | CHINA | 0.497 / 1k | ||
| L4940V85 | 5 distributors | Buy Direct |
批量生产
|
EAR99 | NEC | Tube | TO-220 | -40 | 150 | 8.5 | 2 | 1.5 | CHINA | 0.578 / 1k | ||
