The L4941 is a three-terminal 5V positive regulator available in TO-220, TO-220FP and D2PAK packages, making it useful in a wide range of industrial and consumer applications.
The L4941 is a three‑terminal 5 V positive regulator offered in TO‑220, TO‑220FP and DPAK packages, making it suitable for a wide range of industrial and consumer applications, especially battery‑powered equipment where low dropout reduces consumption. It integrates internal current limiting, anti‑saturation, thermal shutdown and safe‑area protection.
Key specifications include a typical dropout voltage of 450 mV at 1 A, an input voltage range of 6 V to 14 V, and a quiescent current of about 8 mA. The device is rated for operation from –40 °C to +150 °C and is available with ordering codes L4941BV (TO‑220), L4941BP (TO‑220FP) and L4941BD2T (DPAK).
| Dropout Voltage (typical at 1 A) | 450 mV |
|---|---|
| Input Voltage Range | 6 V to 14 V |
| Maximum Output Current | 1 A |
| Thermal Resistance Junction‑Case (TO‑220) | 3 °C/W |
| Storage Temperature Range | -40 °C to +150 °C |
| Operating Junction Temperature Range | -40 °C to +150 °C |
| Package Options | TO‑220, TO‑220FP, DPAK |
| Ordering Codes | L4941BV (TO‑220), L4941BP (TO‑220FP), L4941BD2T (DPAK) |
The typical dropout voltage is 450 mV at a 1 A load.
L4941BV for TO‑220, L4941BP for TO‑220FP, and L4941BD2T for DPAK.