Infineon Technologies TLE4299GMNTMA1

Overview

TLE4299GMNTMA1 from Infineon Technologies is a monolithic 5-V fixed-output linear voltage regulator with integrated inhibit, reset, and early-warning supervision functions, delivering up to 150 mA output current, ±2% output voltage tolerance, and 65 µA quiescent current in ON state for automotive microcontroller power supply applications.

For engineers reviewing the TLE4299GMNTMA1 datasheet, TLE4299GMNTMA1 pinout, TLE4299GMNTMA1 application, or TLE4299GMNTMA1 equivalent, key selection considerations include its P-DSO-14-8 package, 1 µA off-state current, adjustable reset threshold (3.5 V to 4.6 V), reset delay via external capacitor, and SI sense input for battery voltage monitoring down to 1 V.

Technical Context

The TLE4299GMNTMA1 uses a PNP-based low-drop architecture operating across 5.5 V to 45 V input range, maintaining regulated 5 V output with ±2% accuracy. It integrates an inhibit control (INH) that reduces quiescent current below 1 µA when deasserted, enabling ECU sleep-mode compliance.

Its dual supervision system includes a reset output (RO) with adjustable threshold (via RADJ) and delay (via D capacitor), active down to VI = 1 V, plus a separate sense input (SI) with hysteresis-triggered SO output for early battery voltage warning-both implemented with open-collector outputs pulled up internally to Q via 20 kΩ resistors.

Key Specifications

Pinout & Package

Packaged in P-DSO-14-8 (14-pin plastic dual small outline, 8 mm body width, 1.27 mm pitch), thermally optimized for automotive PCB layouts with multiple GND pins (pins 3,4,5,10,11,12) and dedicated high-current paths for I (pin 13) and Q (pin 9).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV70733PDPWR and TLE4274GVT, the TLE4299GMNTMA1 uniquely integrates inhibit, adjustable reset, and early-warning supervision in a single AEC-Q100-qualified device-enabling reduced BOM count, simplified layout, and compliance with ISO 26262 ASIL-B diagnostic coverage requirements for power supply monitoring.

Availability

TLE4299GMNTMA1 is available at Aetrix Electronics and suitable for Engine Control Units, Body Control Modules, Transmission Control Units, and ADAS Sensor Hubs requiring stable component supply across automotive production lifecycles.

Supply support for TLE4299GMNTMA1 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, and industrial control ICs, with global manufacturing and qualification to AEC-Q100 standards.

The TLE4299GMNTMA1 belongs to Infineon's TLE family of automotive-grade linear regulators, designed specifically to meet stringent ISO 16750 and ISO 7637-2 requirements for engine bay and chassis-mounted electronic control units.

FAQ

What is the minimum input voltage required for regulation?

The TLE4299GMNTMA1 begins regulating at VI ≥ 5.5 V and maintains 5 V output within ±2% tolerance. Regulation remains functional down to VI = 1 V for reset assertion, but stable output requires VI ≥ 5.5 V. Below this, dropout increases and output drops linearly with input.

How is the reset delay time calculated?

Reset delay time tD is determined by the external capacitor CD connected between pin D and GND: tD ≈ 1.1 × CD × 1 MΩ. For example, a 100 nF capacitor yields ~110 ms delay. The delay applies to both reset assertion and release, with hysteresis preventing false triggers from short spikes.

Can the SI pin monitor voltages other than battery?

Yes-the SI pin accepts any DC voltage within –0.3 V to 45 V. Using external resistor dividers (RSI1/RSI2), users can scale higher voltages (e.g., 48-V mild hybrid bus) or detect undervoltage on auxiliary rails like CAN transceiver supplies, with SO asserting low when scaled input crosses VSI,low.

Is the TLE4299GMNTMA1 pin-compatible with the TLE4299G?

No-TLE4299GMNTMA1 (P-DSO-14-8) and TLE4299G (P-DSO-8-3) have different pin counts, assignments, and functions. The GM variant adds INH and extra GND pins, relocates I and SI, and omits the standalone GND pin of the G version. PCB layout and schematic must be redesigned for migration.