Key facts
- Brand
- STMicroelectronics
- Model
- L4941
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-10
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STMicroelectronics L4941 1A Very Low Dropout Regulator Datasheet
The L4941 is a three-terminal 5V positive regulator designed for a wide range of industrial and consumer applications. It is available in TO-220 and DPAK packages. The device features very low input/output voltage drop, making it particularly suitable for battery-powered equipment to reduce consumption and prolong battery life. Key features include internal current limiting, antisaturation circuit, thermal shut-down, and safe area protection.
Read onlineSTMicroelectronics L4941 specifications
| Output voltage | 5V |
|---|---|
| Output current | 1A |
| Dropout voltage (typical at 1A) | 450mV |
| Quiescent current (typical at 1A) | 40mA |
| Short circuit current (typical at 14V) | 2.0A |
| Operating junction temperature range | -40 to +150 °C |
| Available packages | TO-220, DPAK |
Source: STMicroelectronics L4941 1A Very Low Dropout Regulator Datasheet
All STMicroelectronics L4941 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the typical dropout voltage of the L4941 at 1A?
The typical dropout voltage is 450mV at 1A.
From: STMicroelectronics L4941 1A Very Low Dropout Regulator Datasheet
What protection features are built into the L4941?
The device employs internal current limiting, antisaturation circuit, thermal shut-down, and safe area protection.
From: STMicroelectronics L4941 1A Very Low Dropout Regulator Datasheet
What is the maximum forward input voltage for the L4941?
The maximum forward input voltage is 30 V.
What protection features are built into the L4941?
It includes internal current limiting, thermal shutdown, short‑circuit protection, reverse‑polarity protection, and safe‑area protection.
What is the typical dropout voltage of the L4941 at 1 A?
The typical dropout voltage is 450 mV at a 1 A load.
From: STMicroelectronics L4941 Very Low Drop 1A Regulator Datasheet
What are the ordering codes for the different package types?
L4941BV for TO‑220, L4941BP for TO‑220FP, and L4941BD2T for DPAK.
From: STMicroelectronics L4941 Very Low Drop 1A Regulator Datasheet