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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
资源
技术文档
| Description | 版本 | 文档大小 | |
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DS0420: 1.5 A very low drop voltage regulator IC | 14.0 | 1.07 MB |
出版刊物和宣传资料
| Description | 版本 | 文档大小 | |
|---|---|---|---|
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Linear and Switching Voltage Regulators Selection Guide | 3.0 | 370.88 KB |
| Description | 版本 | 文档大小 | |
|---|---|---|---|
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电源管理 2017版指南 | 09.2017 | 4.42 MB |
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Low-dropout (LDO) linear voltage regulators - Quick Reference Guide | 2.0 | 216.23 KB |
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Power management for handheld and portable | 2.0 | 1.09 MB |
样片和购买
| 型号 | Package | Packing Type | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Marketing Status | Unit Price (US$) * | Quantity | ECCN (US) | Country of Origin | More info | Order from ST | Order from Distributors |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L4940V5 | TO-220 | Tube | 5 | 2 | 1.5 | Active : Product is in volume production | 0.578 | 1000 | EAR99 | CHINA | MORE INFO | 直接购买 Add to cart | DISTRIBUTOR AVAILABILITY |
| L4940D2T12-TR | D2PAK | Tape And Reel | 12 | 2 | 1.5 | Active : Product is in volume production | 0.497 | 1000 | EAR99 | CHINA | MORE INFO | 直接购买 Add to cart | DISTRIBUTOR AVAILABILITY |
| L4940D2T5-TR | D2PAK | Tape And Reel | 5 | 2 | 1.5 | Active : Product is in volume production | 0.497 | 1000 | EAR99 | CHINA | MORE INFO | 直接购买 Add to cart | DISTRIBUTOR AVAILABILITY |
| L4940V85 | TO-220 | Tube | 8.5 | 2 | 1.5 | Active : Product is in volume production | 0.578 | 1000 | EAR99 | CHINA | MORE INFO | 直接购买 Add to cart | DISTRIBUTOR AVAILABILITY |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
质量与可靠性
| 型号 | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L4940V5 | Active | TO-220 | 工业 | Ecopack1 |
|
| L4940D2T12-TR | Active | D2PAK | 工业 | Ecopack2 | |
| L4940D2T5-TR | Active | D2PAK | 工业 | Ecopack2 | |
| L4940V85 | Active | TO-220 | 工业 | Ecopack1 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
MORE INFO
No availability reported, please contact our Sales office
Active: In Production.
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