Infineon Technologies TLE72762EXUMA1

Overview

TLE72762EXUMA1 from Infineon Technologies is a monolithic 5-V low-dropout linear voltage regulator for automotive power supply systems, delivering up to 300 mA output current with ±2% output voltage accuracy (4.9–5.1 V), ultra-low quiescent current (20 µA typ.), and integrated enable control. It operates from 5.5 V to 42 V input, features overtemperature shutdown and output current limiting, and is qualified per AEC-Q100 for under-hood applications.

For engineers reviewing the TLE72762EXUMA1 datasheet, TLE72762EXUMA1 pinout, TLE72762EXUMA1 application, or TLE72762EXUMA1 equivalent, key selection criteria include dropout voltage (250–500 mV at 200 mA), thermal resistance (R_thJA = 47 K/W on 2s2p board), ceramic capacitor compatibility (≥470 nF), reverse-current sink protection, and AEC-Q100 Grade 0 qualification (−40 °C to +150 °C).

Technical Context

The TLE72762EXUMA1 employs a charge-pump-assisted bandgap reference architecture enabling stable 5 V regulation across wide input (5.5–42 V) and temperature (−40 to +150 °C) ranges while maintaining ultra-low I_Q. Its internal overtemperature shutdown and foldback current limiting protect against sustained overload and short-circuit faults.

Enable functionality provides active-high control with integrated pull-down resistor; disabling reduces I_Q to 5 µA. An integrated output sink circuit clamps Q-pin voltage ≤5.5 V during reverse current events, preventing downstream overvoltage damage 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 TPS7B6750QDGNRQ1, the TLE72762EXUMA1 uniquely combines AEC-Q100 Grade 0 qualification, 5 µA disable current, reverse-current sink protection, and 42 V input tolerance-making it the only choice for safety-critical, high-temp, always-on automotive domains requiring full cold-crank support.

Availability

TLE72762EXUMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera systems, and electric power steering applications requiring stable component supply across extended temperature and automotive transient conditions.

Supply support for TLE72762EXUMA1 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 electronics, and industrial control ICs, with leadership in AEC-Q100-qualified components.

The TLE72762EXUMA1 belongs to Infineon's TLE727x automotive LDO family, designed specifically for robust, low-I_Q power regulation in harsh-temperature engine and chassis control environments.

FAQ

What is the minimum output capacitance required for stable operation?

The TLE72762EXUMA1 requires a minimum 470 nF ceramic output capacitor with ESR ≤10 Ω at 10 kHz. This value accounts for worst-case ±30% capacitance tolerance and ensures phase margin >45° across temperature and load. Larger values improve transient response but are not required for stability.

Does the device require an input capacitor, and what type is recommended?

Yes-a ceramic capacitor must be placed directly between pin 13 (I) and pin 4 (GND), with typical value 100 nF. This minimizes high-frequency impedance and prevents oscillation during load transients. X7R or X5R dielectrics are preferred for stable capacitance across temperature and bias.

How does the reverse-current sink function protect downstream circuitry?

The integrated sink circuit actively clamps the Q-pin voltage to ≤5.5 V when reverse current flows (e.g., during input loss while output remains biased). This prevents overvoltage stress on connected 5 V devices such as MCUs or transceivers, eliminating the need for an external series Schottky diode and its associated forward drop and leakage.

Is the exposed pad electrically connected, and how should it be handled on the PCB?

Yes-the exposed pad is internally connected to GND and serves as the primary thermal and electrical ground path. It must be soldered to a dedicated PCB copper pour tied to system GND via ≥4 thermal vias (0.3 mm diameter, spaced ≤1 mm apart) to achieve specified R_thJA = 47 K/W and ensure reliable 150 °C operation.