Product overview
Description
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.
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All features
- 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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EDA Symbols, Footprints and 3D Models
STMicroelectronics - L4940
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Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L4940D2T12-TR | Active | D2PAK | Industrial | Ecopack2 | |
| L4940D2T5-TR | Active | D2PAK | Industrial | Ecopack2 | |
| L4940V5 | Active | TO-220 | Industrial | Ecopack2 | |
| L4940V85 | NRND | TO-220 | Industrial | Ecopack2 | |
(**) 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.
Sample & Buy
| Part Number | Order from distributors | Order from ST | Marketing Status | Grade | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Country of Origin | Budgetary Price (US$)*/Qty | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Unit Price (US$) | Country of Origin | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | ||||||||||||||||||||
| L4940V5 | distributors No availability of distributors reported, please contact our sales office | Active | Industrial | EAR99 | NEC | Tube | TO-220 | -40 | 150 | 5 | 2 | 1.5 | CHINA | | 5 | 2 | 1.5 | 0.8488 | CHINA | ||
| L4940D2T12-TR | distributors No availability of distributors reported, please contact our sales office | Active | Industrial | EAR99 | NEC | Tape and Reel | D2PAK | -40 | 150 | 12 | 2 | 1.5 | CHINA | | 12 | 2 | 1.5 | 0.7568 | CHINA | ||
| L4940D2T5-TR | distributors No availability of distributors reported, please contact our sales office | Active | Industrial | EAR99 | NEC | Tape and Reel | D2PAK | -40 | 150 | 5 | 2 | 1.5 | CHINA | | 5 | 2 | 1.5 | 0.7568 | CHINA | ||
| L4940V85 | distributors No availability of distributors reported, please contact our sales office | NRND | Industrial | EAR99 | NEC | Tube | TO-220 | -40 | 150 | 8.5 | 2 | 1.5 | CHINA | | 8.5 | 2 | 1.5 | 0.8488 | CHINA | ||
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors