Infineon Technologies TLE4262GMXUMA1

Overview

TLE4262GMXUMA1 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), 0.35–0.50 V dropout at 150 mA, and integrated reset generator with adjustable 3.5–4.5 V threshold. 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 rails.

For engineers reviewing the TLE4262GMXUMA1 datasheet, TLE4262GMXUMA1 pinout, TLE4262GMXUMA1 application, or TLE4262GMXUMA1 equivalent, key selection criteria include its AEC-Q100 qualification, adjustable reset delay via external capacitor, programmable reset threshold using voltage divider on RADJ, and ability to operate across 6–45 V input range while maintaining stable 5 V output under load transients and thermal stress.

Technical Context

The TLE4262GMXUMA1 uses a bandgap-referenced control amplifier driving a series pass transistor with saturation control to maintain regulation across wide input (6–45 V) and load (0–200 mA) ranges. Its internal reset generator monitors output voltage via the RADJ pin, triggering open-collector RO when VQ falls below a user-adjustable threshold (3.5–4.5 V), with delay timing set by external capacitor on D pin.

Protection logic includes thermal shutdown at junction temperatures >150°C, reverse-polarity detection disabling conduction, and current-limiting circuitry preventing damage during sustained short-circuit events. The INH pin enables full system-level power gating with <1 µA quiescent current in inhibited state, supporting low-power sleep modes in automotive ECUs.

Key Specifications

Pinout & Package

Package: PG-DSO-14 (14-pin exposed pad SOIC variant, RoHS-compliant, AEC-Q100 qualified).

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 TLE4262GMXUMA1 uniquely combines 200 mA drive, adjustable reset threshold (3.5–4.5 V), and inhibit-controlled ultra-low standby current - making it the only option qualified for AEC-Q100 Grade 1 with full system supervision capability in compact PG-DSO-14 footprint.

Availability

TLE4262GMXUMA1 is available at Aetrix Electronics and suitable for automotive body electronics, instrument cluster power management, and ADAS sensor module designs requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for TLE4262GMXUMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

The OPTIREG™ Linear product line delivers AEC-Q100-qualified linear regulators engineered specifically for automotive power domains - emphasizing robustness under load dump, cold-crank, and thermal stress while integrating supervision features like reset and inhibit.

FAQ

What is the minimum input voltage required for regulation?

The TLE4262GMXUMA1 requires VI ≥ 6 V to maintain regulated 5 V output. Below this, dropout behavior occurs - e.g., at 150 mA load, regulation holds down to VI = 5.35 V (5.00 V + 0.35 V dropout), but functional range starts at 6 V per datasheet specification to ensure stability and protection circuit operation across temperature.

How is the reset threshold adjusted using the RADJ pin?

The RADJ pin senses a divided fraction of VQ. Connecting a resistor divider (e.g., R1 from Q to RADJ, R2 from RADJ to GND) sets the trip point: VQ,rt ≈ 4.5 V × (1 + R1/R2). Grounding RADJ fixes threshold at 4.5 V; applying ~1.35 V to RADJ lowers it to 3.5 V. The internal comparator triggers reset when RADJ voltage falls below 1.26–1.44 V.

Can the RO pin drive a microcontroller GPIO directly?

Yes, RO is an open-collector output rated for 42 V and 1 mA sink current. It requires an external pull-up resistor (e.g., 10 kΩ to 5 V) to generate a logic-high level when inactive. When active, RO pulls low (≤0.4 V at 1 mA), compatible with standard 3.3 V or 5 V MCU inputs without level-shifting.

What thermal derating applies above 100°C ambient?

With RthJA = 112 K/W on standard 80×80 mm² PCB, power dissipation must be reduced above 100°C ambient to avoid exceeding 150°C junction limit. At 125°C ambient, max allowable power is (150−125)/112 ≈ 0.22 W - limiting 150 mA load to ≤1.5 V dropout (VI ≤6.5 V) or requiring enhanced copper pour or forced airflow for higher VI conditions.