Product overview
Description
The L4941 is a three terminal 5V positive regulators available in TO-220 and DPAK packages, making it useful in a wide range of industrial and consumer applications. Thanks to its very low input/output voltage drop, these devices are particularly suitable for battery powered equipments, reducing consumption and prolonging battery life. It employs internal current limiting, antisaturation circuit, thermal shut-down and safe area protection.-
All features
- Low dropout voltage (450mV typ. at 1A)
- Thermal shutdown
- Very low quiescent current
- Reverse polarity protection
- Short circuit protection
Circuit Diagram
Featured Videos
All resources
| Resource title | Version | Latest update |
|---|
Product Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 5.3 | 19 Sep 2016 | 19 Sep 2016 |
Application Notes (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.3 | 18 Oct 2019 | 18 Oct 2019 |
Brochures (2)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 2.0 | 02 Jul 2021 | 02 Jul 2021 | ||
| 2.0 | 19 Mar 2021 | 19 Mar 2021 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L4941
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L4941BDT-TR | Active | DPAK | Industrial | Ecopack2 | |
| L4941BV | Active | 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 | 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$)*/Qty | More info | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||||
| L4941BV | 5 distributors | Active | EAR99 | NEC | Tube | TO-220 | -40 | 150 | 5 | 4 | 1 | CHINA | 0.4669 / 1k | |||
| L4941BDT-TR | 4 distributors | Buy Direct | Active | EAR99 | NEC | Tape And Reel | DPAK | -40 | 150 | 5 | 4 | 1 | CHINA | 0.6532 / 1k | ||
Marketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.4669 / 1k(*) 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
