Infineon Technologies TLE42962GV50HTSA1

Overview

TLE42962GV50HTSA1 from Infineon Technologies is a monolithic low-dropout linear voltage regulator in PG-SCT595-5 package, delivering a stable 5.0 V ±4% output at up to 30 mA load current with dropout as low as 250 mV at 20 mA. It features an inhibit input for standby mode (quiescent current ≤5 µA), reverse polarity protection, short-circuit and overtemperature shutdown, and operates across -40°C to +150°C junction temperature - designed for automotive microcontroller and sensor supply under harsh conditions.

For engineers reviewing the TLE42962GV50HTSA1 datasheet, TLE42962GV50HTSA1 pinout, TLE42962GV50HTSA1 application, or TLE42962GV50HTSA1 equivalent, key selection criteria include its AEC-Q100 qualification, ceramic-capacitor compatibility (≥3.3 µF, ESR ≤2 Ω), 45 V max input, and thermally enhanced SMD package for engine bay and body control module deployments.

Technical Context

The TLE42962GV50HTSA1 integrates bandgap reference, error amplifier, pass transistor, thermal shutdown, and inhibit logic in a single die. Its architecture enables regulation stability with minimal external components while maintaining robust fault tolerance: short-circuit current limiting triggers at ~30 mA, and thermal protection disables output when junction temperature exceeds safe threshold.

Input voltage range is 5.5 V to 45 V for the 5.0 V version, supporting wide automotive battery transients. The inhibit function uses TTL-compatible thresholds (turn-on ≥2.2 V, turn-off ≤0.4 V) and draws <12 µA at 5 V, enabling low-power wake-up control in always-on domains.

Key Specifications

Pinout & Package

Package: PG-SCT595-5 - thermally enhanced 5-pin SMD package with exposed thermal pad (pin 5), optimized for high ambient temperature operation and PCB heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV73350PDBVR and MAX1725EUT+T, the TLE42962GV50HTSA1 uniquely combines AEC-Q100 Grade 0 qualification, reverse polarity hardening, and 45 V input tolerance - making it the only option qualified for direct battery connection in powertrain and chassis control units.

Availability

TLE42962GV50HTSA1 is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, and electric power steering systems requiring stable component supply across extended automotive lifecycles and high-temperature environments.

Supply support for TLE42962GV50HTSA1 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 ICs, and security solutions, with global manufacturing and automotive qualification infrastructure.

The OPTIREG™ linear product line delivers AEC-Q100-qualified voltage regulators for automotive subsystems demanding high reliability, thermal robustness, and integrated fault protection - especially in powertrain, chassis, and ADAS domains.

FAQ

What is the minimum input voltage required for regulation at full 30 mA load?

The TLE42962GV50HTSA1 requires a minimum input voltage of 5.5 V to maintain 5.0 V output at 30 mA load, based on its 250 mV typical dropout voltage. Below this, output collapses linearly; operation at 5.25 V input yields ~4.75 V output, insufficient for 5 V logic rails.

Can the device operate without an output capacitor?

No - the TLE42962GV50HTSA1 requires a minimum 3.3 µF ceramic output capacitor with ESR ≤2 Ω at 10 kHz for loop stability. Omission causes oscillation or unregulated output; tantalum or aluminum electrolytics are not recommended due to ESR and lifetime limitations at high temperature.

Is the inhibit function compatible with 3.3 V microcontroller GPIOs?

Yes - the inhibit input has TTL-compatible thresholds: turn-on occurs at ≥2.2 V, and turn-off at ≤0.4 V. A 3.3 V MCU GPIO can directly drive INH without level shifting, drawing only ≤12 µA at 5 V, well within standard I/O drive capability.

How does thermal performance change if pin 5 is not soldered to a thermal pad?

If pin 5 (thermal pad) is not soldered to a PCB copper area, junction-to-solder-point thermal resistance degrades from 30 K/W to >100 K/W, causing rapid junction temperature rise. At 30 mA load and 85°C ambient, unsoldered thermal pad risks exceeding 150°C junction limit within seconds, triggering thermal shutdown.