TLE 4261-2 is a high accuracy 5-V low-drop voltage regulator in a P-TO220-7 or in a P- DSO package. The maximum input voltage is 42 V (65 V/≤ 400 ms). The device can produce an output current of more than 500 mA. It is short-circuit-proof and incorporates temperature protection that disables the circuit at impermissibly high temperatures.
The TLE 4261-2 regulates an input voltage up to 42 V (65 V for <400 ms) to a precise 5 V output with 2 % accuracy. It features low quiescent current, reverse‑polarity protection, over‑temperature shutdown, and an integrated watchdog that monitors a connected microprocessor.
Key electrical specifications include a maximum output current of >500 mA, drop voltage of 0.35‑0.5 V, load regulation of 15‑35 mV, ripple rejection of 54 dB at 100 Hz, and an operating temperature range of –40 °C to 150 °C. The device is offered in P‑TO220‑7 and P‑DSO‑20‑6 packages with detailed pin definitions for input, inhibit, reset, watchdog and output functions.
| Output voltage | 5 V |
|---|---|
| Maximum output current | >500 mA |
| Input voltage range | 0 V–42 V (continuous), up to 65 V <400 ms |
| Overvoltage protection | Up to 65 V for <400 ms |
| Drop voltage | 0.35 V–0.5 V |
| Load regulation | 15 mV–35 mV (25 mA‑500 mA) |
| Ripple rejection | 54 dB at 100 Hz |
| Operating temperature range | -40 °C to 150 °C |
| Quiescent current | Low starting‑current consumption |
The device can handle up to 42 V continuously and up to 65 V for less than 400 ms.
It can supply more than 500 mA of output current.
The regulator includes overload, overvoltage, overtemperature, reverse‑polarity, and watchdog protection.
Pin 3 (QRES) is the open‑collector reset output.