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1.5 A very low drop voltage regulator IC
Download Datasheet
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.
Key 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
Resources
Technical Documentation
| Description | Version | Size | |
|---|---|---|---|
|
DS0420: 1.5 A very low drop voltage regulator IC | 14.0 | 1 MB |
Publications and Collaterals
| Description | Version | Size | |
|---|---|---|---|
|
|
Linear and Switching Voltage Regulators Selection Guide | 3.0 | 370 KB |
| Description | Version | Size | |
|---|---|---|---|
|
|
Brochure Power management guide | 10.2018 | 4 MB |
|
|
Power management for handheld and portable | 2.0 | 1 MB |
Tools and Software
| Part Number | Manufacturer | Description |
|---|---|---|
| Contract Design for Manufacturing | LACROIX Electronics | CDM consists in the full design, industrialization and manufacturing of an electronic product performed by LACROIX Electronics teams for manufacturers |
| Design for eXcellence | LACROIX Electronics | DfX refers to all methods and tools used by LACROIX Electronics to carry out the advanced industrialization of an electronic assembly or sub-assembly |
| Electronics Manufacturing Services | LACROIX Electronics | LACROIX Electronics supports manufacturers in their electronics subcontracting projects and offers a complete manufacturing and testing service |
Sample & Buy
| Part Number | 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 | Buy Direct 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 | Buy Direct 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 | Buy Direct 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 | Buy Direct 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
Quality & Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L4940V5 | Active | TO-220 | Industrial | Ecopack1 |
|
| L4940D2T12-TR | Active | D2PAK | Industrial | Ecopack2 | |
| L4940D2T5-TR | Active | D2PAK | Industrial | Ecopack2 | |
| L4940V85 | Active | TO-220 | Industrial | 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.
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MORE INFO
No availability reported, please contact our Sales office
Active: In Production.
| Distributor Name | Region | Stock | Min. Order |
|---|
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