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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
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质量与可靠性
| 产品型号 | 供货状态 | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L4940D2T12-TR | 批量生产 | D2PAK | Industrial | Ecopack2 | |
| L4940D2T5-TR | 批量生产 | D2PAK | Industrial | Ecopack2 | |
| L4940V5 | 批量生产 | TO-220 | Industrial | Ecopack1 | |
| L4940V85 | 批量生产 | TO-220 | Industrial | Ecopack1 | |
(**) 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 | 封装 | 包装类型 | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | 供货状态 | ECCN (US) | Country of Origin | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L4940V5 | 9 distributors | 立即购买 | TO-220 | Tube | 5 | 2 | 1.5 | 批量生产 | EAR99 | CHINA | 0.578 / 1k | |
| L4940D2T12-TR | 7 distributors | 立即购买 | D2PAK | Tape And Reel | 12 | 2 | 1.5 | 批量生产 | EAR99 | CHINA | 0.497 / 1k | |
| L4940D2T5-TR | 6 distributors | 立即购买 | D2PAK | Tape And Reel | 5 | 2 | 1.5 | 批量生产 | EAR99 | CHINA | 0.497 / 1k | |
| L4940V85 | 5 distributors | 立即购买 | TO-220 | Tube | 8.5 | 2 | 1.5 | 批量生产 | EAR99 | CHINA | 0.578 / 1k |
