Infineon Technologies TLE63892GV50XUMA2

Overview

TLE63892GV50XUMA2 from Infineon is a fixed 5V step-down DC/DC controller driving an external P-channel MOSFET, supporting input voltages up to 60V, delivering up to 2.3A output current, and operating across automotive temperature range (−40°C to +150°C). It integrates undervoltage reset with 4.5–4.8V threshold and 50mV hysteresis, low-battery sense comparator, and 360kHz fixed-frequency current-mode control for automotive power supply rails.

For engineers reviewing the TLE63892GV50XUMA2 datasheet, TLE63892GV50XUMA2 pinout, TLE63892GV50XUMA2 application, or TLE63892GV50XUMA2 equivalent, key selection criteria include its 5V fixed output accuracy (±3%), <2µA shutdown current, 100% duty-cycle capability for ultra-low dropout, and PG-DSO-14 package compatibility with AEC-Q100 qualified automotive designs.

Technical Context

The TLE63892GV50XUMA2 implements a PWM/PFM hybrid control scheme enabling seamless transition between modes without minimum load requirements, reducing quiescent current to <120µA at light loads. Its current-mode architecture provides inherent cycle-by-cycle overcurrent protection via the CS pin and supports synchronization via the SYNC input for EMI-sensitive multi-rail systems.

It integrates two independent comparators: one for battery voltage monitoring (SI/SI_GND/SO) with internal 1.25V reference and open-drain SO output pulled up to VOUT via 20kΩ, and another for output undervoltage detection (FB/RO) with factory-trimmed 4.5–4.8V reset threshold and 50mV hysteresis-both optimized for engine control unit (ECU) and body electronics monitoring.

Key Specifications

Pinout & Package

Package: PG-DSO-14 (RoHS-compliant, thermally enhanced SOIC-14 with exposed thermal pad).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar step-down controller applications.

Compared with LM5164QPWPRQ1 and TPS54240DGQR, the TLE63892GV50XUMA2 uniquely integrates automotive-grade reset and battery monitoring in a fixed 5V controller, eliminating external components while ensuring AEC-Q100 compliance and cold-crank resilience-critical for ECU and BCM power architectures.

Availability

TLE63892GV50XUMA2 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera power supplies, and infotainment system core logic requiring stable component supply across automotive production lifecycles.

Supply support for TLE63892GV50XUMA2 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 security solutions, with global R&D and manufacturing infrastructure.

The TLE6389 product line delivers AEC-Q100-qualified step-down controllers for automotive power rails, designed specifically for engine, chassis, and body electronics demanding high reliability, wide input range, and integrated supervision functions.

FAQ

What is the function of the SI_ENABLE pin on TLE63892GV50XUMA2?

The SI_ENABLE pin is an active-high control that switches the SI_GND terminal between low-impedance connection to GND and high-impedance state. When SI_ENABLE is high, SI_GND is tied to GND, enabling proper operation of the SI comparator. When low, SI_GND floats and SO becomes undefined-this allows flexible configuration of battery-sense dividers without loading the source during sleep modes.

Does TLE63892GV50XUMA2 require external feedback resistors for 5V output?

No. The TLE63892GV50XUMA2 has an internally connected voltage divider for the FB pin, configured to regulate precisely at 5.0V ±3%. External feedback resistors are unnecessary and must not be connected; doing so would disrupt regulation accuracy and potentially cause instability in the control loop.

How does the RO output behave during undervoltage events?

The RO pin is an open-drain output pulled up to VOUT via an internal 20kΩ resistor. It remains high under normal operation and pulls low when VOUT falls below the factory-trimmed threshold (4.5–4.8V) with 50mV hysteresis. This provides a clean, debounced reset signal to microcontrollers without requiring external debounce circuitry.

Can TLE63892GV50XUMA2 synchronize to an external clock?

Yes. The SYNC pin accepts TTL- or CMOS-compatible clock signals up to 360kHz. When driven, it overrides the internal oscillator and forces the controller to switch at the external frequency-enabling deterministic EMI management and phase alignment in multi-converter systems such as domain controllers or camera clusters.