The TLE 4251 is an integrated low-drop voltage tracker with features including output tracking tolerance ≤ ± 0.2%, 400 mA output current capability, enable function, very low current consumption in OFF mode, wide operation range, wide temperature range, output protected against short circuit, overtemperature protection, and reverse polarity proof. It is designed to supply sensors under the severe conditions of automotive applications. This document provides technical information about the product.
The TLE4251 is a monolithic low‑drop voltage tracker offered in a compact P‑TO252‑5‑1 SMD package. It tracks supply voltages up to 40 V to a reference set by an external resistor and can drive loads up to 400 mA while maintaining high accuracy.
The device includes enable control for ultra‑low standby current, short‑circuit, over‑temperature and reverse‑polarity protection, making it suitable for low‑power battery‑operated automotive sensor applications.
| Output tracking tolerance | < +0.2 % |
|---|---|
| Maximum output current | 400 mA |
| Supply voltage range | up to 40 V |
| Operating temperature range | -40 °C to 150 °C |
| Enable function | high‑active input |
| Short‑circuit protection | enabled |
The device can supply up to 400 mA of output current.
It offers a tracking tolerance of less than +0.2 %.
It can track supply voltages up to 40 V.
The device operates from –40 °C to +150 °C.