Infineon Technologies TLE4262GNTMA1

Overview

TLE4262GNTMA1 from Infineon is a 5 V low-dropout linear voltage regulator in PG-DSO-14 package, delivering up to 200 mA output current with ±2% output voltage tolerance (4.90–5.10 V), dropout voltage ≤0.50 V at 150 mA, and adjustable reset threshold (4.5–3.5 V). It features reverse polarity protection, overtemperature shutdown, short-circuit proof operation, and TTL-compatible inhibit input for <1 µA standby current - deployed in automotive body control modules, instrument clusters, and ADAS sensor power supplies.

For engineers reviewing the TLE4262GNTMA1 datasheet, TLE4262GNTMA1 pinout, TLE4262GNTMA1 application, or TLE4262GNTMA1 equivalent, key selection criteria include its AEC-Q100 qualification, adjustable reset delay via external capacitor, open-collector reset output with 30 kΩ internal pull-up, and ability to regulate inputs from 6 V to 45 V while maintaining stable 5 V output under load transients and thermal stress.

Technical Context

The TLE4262GNTMA1 uses a bandgap-referenced control amplifier driving a series pass transistor with saturation control to prevent over-saturation across load currents up to 200 mA. Its reset generator monitors output voltage via the RADJ pin, triggering reset when scaled voltage falls below 1.35 V (corresponding to 4.5 V at Q with RADJ grounded).

Reset delay is set by an external capacitor on the D pin, discharging through a 6–15 µA current source; timing thresholds are fixed at VDRL = 0.20–0.55 V and VDU = 1.4–2.20 V. The INH pin enables full shutdown with <1 µA quiescent current, and RO provides open-collector reset signaling compatible with microcontroller reset inputs.

Key Specifications

Pinout & Package

Package: PG-DSO-14 (14-pin exposed-pad SOIC variant, RoHS-compliant, thermally enhanced for automotive ambient up to +125 °C junction temperature).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-dropout automotive voltage regulator applications.

Compared with TLV73350PDBVR and TPS7B6950QDCYRQ1, the TLE4262GNTMA1 uniquely combines AEC-Q100 qualification, adjustable reset threshold (3.5–4.5 V), external delay timing, and reverse polarity protection - making it the only option among the three qualified for safety-critical body electronics requiring configurable brown-out response.

Availability

TLE4262GNTMA1 is available at Aetrix Electronics and suitable for automotive body control modules, instrument clusters, radar sensor subsystems, and ADAS camera modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLE4262GNTMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality systems certified to IATF 16949.

The OPTIREG™ Linear product line delivers AEC-Q100-qualified voltage regulators optimized for automotive power rails - designed to replace discrete LDO solutions with integrated protection, reset, and thermal management in harsh environments.

FAQ

What is the minimum input voltage required for regulation?

The TLE4262GNTMA1 requires VI ≥ 6 V to maintain regulated 5 V output. Below this, the device enters dropout mode; regulation resumes once VI exceeds VQ + Vdr (e.g., >5.5 V at 150 mA). This 6 V minimum ensures compatibility with automotive cold-crank conditions where battery voltage may dip to 6.5 V.

How is the reset delay time calculated?

Reset delay trd is determined by the external capacitor CD on pin D and the internal charge/discharge current (6–15 µA). For CD = 100 nF, trd = 17 ms typical. Exact timing depends on CD value and temperature coefficient; design guidance recommends X7R or C0G dielectrics for stability across -40°C to +125°C.

Can the reset threshold be set below 3.5 V?

No. The lowest achievable reset threshold is 3.5 V, achieved when the RADJ pin is connected to GND via a voltage divider that scales VQ to 1.35 V (the internal comparator threshold). Attempting lower thresholds violates the functional range of VRADJ (–0.3 V to 6 V) and risks unreliable reset behavior per datasheet Section 4.2.13.

Is the RO pin compatible with 3.3 V microcontrollers?

Yes. RO is an open-collector output with internal 30 kΩ pull-up to Q (5 V), so it can safely interface with 3.3 V logic inputs. When active, RO pulls low to ≤0.4 V at 1 mA sink current - well within the VIH/VIL thresholds of standard 3.3 V MCUs. No level-shifter is required.