Infineon Technologies TLE72722DATMA1

Overview

TLE72722DATMA1 from Infineon Technologies is a monolithic 5-V low-dropout linear voltage regulator with integrated power-on/undervoltage reset, enable control, and overtemperature shutdown-designed for automotive microcontroller supply. It delivers up to 300 mA output current, maintains ±2% output voltage accuracy (4.9–5.1 V), achieves 250 mV typical dropout at 200 mA, and operates across −40 °C to +150 °C junction temperature.

For engineers reviewing the TLE72722DATMA1 datasheet, TLE72722DATMA1 pinout, TLE72722DATMA1 application, or TLE72722DATMA1 equivalent, key selection considerations include its ultra-low 20 µA quiescent current, reset output with open-collector RO pin, ceramic capacitor compatibility down to 470 nF, and AEC-Q100 qualification for permanent battery-connected systems.

Technical Context

The TLE72722DATMA1 integrates a charge pump-based LDO architecture enabling stable regulation from 5.5 V to 42 V input while maintaining ultra-low quiescent current. Its internal bandgap reference and reset generator provide precise 5 V output with power-on timing and undervoltage detection down to V_Q = 1 V.

Reset functionality is implemented via an open-collector RO pin with internal pull-up; EN pin enables high-side logic control with integrated pull-down. Output current limiting (301 mA typ.) and thermal shutdown protect against overload and fault conditions without external components.

Key Specifications

Pinout & Package

Package: PG-SSOP-14 Exposed Pad (RoHS-compliant, thermally enhanced). Exposed pad must be soldered to PCB ground plane for thermal and electrical performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV73350PDBVR and TPS7B6950QDCYRQ1, the TLE72722DATMA1 uniquely combines battery-direct operation (up to 42 V), integrated RO reset, and Grade 0 temperature capability-making it the only choice for primary MCU supply in harsh under-hood environments requiring hardware-level fault signaling.

Availability

TLE72722DATMA1 is available at Aetrix Electronics and suitable for Body Control Modules, Engine Control Units, and Transmission Control Units requiring stable component supply with AEC-Q100 compliance, extended temperature operation, and integrated reset functionality.

Supply support for TLE72722DATMA1 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 expertise.

The TLE7272 series belongs to Infineon's automotive-grade linear regulator product line, engineered specifically for permanent-battery-connected microcontroller power domains in engine, transmission, and chassis control units.

FAQ

What is the minimum input voltage required for regulation?

The TLE72722DATMA1 begins regulating at V_I = 5.5 V, with guaranteed operation up to 42 V. At 200 mA load, the 250 mV typical dropout means stable 5 V output is maintained as long as input stays ≥5.25 V-critical for cold-crank scenarios where battery voltage dips below 6 V.

Can the RO pin drive a standard logic input directly?

Yes-the RO pin is an open-collector output with an internal pull-up resistor. It can directly interface with CMOS or TTL inputs referenced to V_Q, provided the external pull-up (if added) is ≥10 kΩ to Q. When asserted, RO sinks current while holding voltage <0.4 V at I_OL = 4 mA.

Is an external capacitor required on the EN pin?

No external capacitor is required on EN. The pin has an integrated pull-down resistor and accepts standard CMOS logic levels. However, for noise immunity in high-EMI environments (e.g., near ignition coils), a 100 pF ceramic capacitor from EN to GND is recommended to suppress fast transients without affecting enable timing.

Does the exposed pad require a thermal via array?

Yes-the exposed pad must be soldered to a solid GND plane, and JEDEC-simulated data shows optimal thermal performance (R_thJA = 47 K/W) requires a thermal via array connecting the pad to inner-layer GND planes. Omitting vias increases R_thJA to 141 K/W, risking thermal shutdown above 150 mW dissipation.