Infineon Technologies TLE4269GNTMA1

Overview

TLE4269GNTMA1 from Infineon Technologies is an AEC-Q100 qualified automotive 5-V fixed-output linear voltage regulator in PG-DSO-8-16 package, delivering up to 150 mA output current with ≤ ±2% output voltage tolerance, 0.25 V typical dropout at 100 mA, and integrated reset/sense open-collector outputs for engine control units and body electronics.

For engineers reviewing the TLE4269GNTMA1 datasheet, TLE4269GNTMA1 pinout, TLE4269GNTMA1 application, or TLE4269GNTMA1 equivalent, key selection criteria include its 45 V max input rating, reset threshold adjustability via RADJ pin, 1 V minimum quiescent operation for early warning, thermal shutdown at 150 °C, and RoHS-compliant green packaging.

Technical Context

The TLE4269GNTMA1 uses a PNP series pass transistor with saturation control to maintain regulation across wide load (1–150 mA) and input voltage (6–45 V) ranges. Its internal reference and error amplifier achieve 5.00 V ±10 mV output accuracy over -40 to +125 °C junction temperature.

Reset functionality relies on a dedicated delay capacitor (D pin) charged above VRT (default 4.65 V); discharge triggers RO low within tRR < 100 µs. SI-to-SO comparator enables independent low-voltage warning of input or auxiliary rails without loading the main output.

Key Specifications

Pinout & Package

PG-DSO-8-16: 8-pin exposed-pad SOIC package with thermal enhancement; pin 1 = Input (I), pin 2 = Sense Input (SI), pin 3 = Reset Threshold Adjust (RADJ), pin 4 = Reset Delay (D), pin 5 = Ground (GND), pin 6 = Reset Output (RO), pin 7 = Sense Output (SO), pin 8 = 5-V Output (Q).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive 5-V LDO regulator applications.

Compared with TLV73350PDBVR and MAX16135ATA+T, the TLE4269GNTMA1 uniquely combines adjustable reset threshold, dedicated SI-based early warning, and AEC-Q100 Grade 0 qualification in a thermally enhanced DSO-8 package-making it optimal for safety-critical automotive subsystems requiring layered voltage supervision.

Availability

TLE4269GNTMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera modules, and electric power steering systems requiring stable component supply with full automotive qualification traceability.

Supply support for TLE4269GNTMA1 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 leadership in AEC-Q100-qualified analog and mixed-signal devices.

The TLE4269GNTMA1 belongs to Infineon's TLE family of automotive voltage regulators, designed specifically for robust, monitored 5-V power delivery in harsh-temperature engine bay and chassis applications.

FAQ

What is the minimum input voltage required for regulation at full 150 mA load?

The TLE4269GNTMA1 maintains 5-V regulation down to 5.25 V input at 100 mA load (0.25 V dropout). At 150 mA, dropout rises to 0.5 V max per datasheet, requiring ≥5.5 V input. Below this, output collapses linearly with input.

Can the reset output (RO) drive a standard CMOS input directly?

Yes. RO is an open-collector output with an internal 20 kΩ pull-up to Q. It sinks ≥4 mA when active low, sufficient to drive standard 5-V CMOS inputs (e.g., STM32 NRST) without external components, provided VQ remains ≥4.5 V during reset assertion.

How does the SI-to-SO early warning function interact with the main reset condition?

SI monitors an external voltage (e.g., battery via divider); SO asserts low when SI falls below internal reference, typically 100–200 ms before RO activates. This two-stage warning enables firmware to log faults or enter safe mode before hard reset, improving diagnostic coverage.

Is the thermal pad (exposed die attach pad) electrically connected to GND?

Yes. The thermal pad on the PG-DSO-8-16 package is internally connected to pin 5 (GND). It must be soldered to a GND copper pour for both thermal performance and electrical integrity; floating the pad degrades R_thJA by >50 K/W and risks instability.