Infineon Technologies TLE72792GV50XUMA1

Overview

TLE72792GV50XUMA1 from Infineon Technologies is an AEC-Q100 qualified monolithic low-dropout voltage regulator for automotive microcontroller supply, delivering 5 V ±2% output at up to 180 mA with ultra-low quiescent current (<36 µA), 45 V max input voltage, and integrated reset with adjustable power-on delay. It operates across -40 °C to +150 °C junction temperature and includes early warning (Sense Input/Output), enable control, short-circuit protection, and overtemperature shutdown.

For engineers reviewing the TLE72792GV50XUMA1 datasheet, TLE72792GV50XUMA1 pinout, TLE72792GV50XUMA1 application, or TLE72792GV50XUMA1 equivalent, key selection criteria include its 5 V fixed output tolerance, PG-DSO-14 package thermal performance (R_thJA = 53 K/W), reset timing configurability via RM pin, and battery-permanent connection suitability enabled by <3 µA shutdown current.

Technical Context

The TLE72792GV50XUMA1 integrates a bandgap reference, charge pump, reset generator, and overtemperature shutdown circuit within a single silicon die. Its Sense Input (SI) and Sense Output (SO) pins implement early-warning monitoring of upstream supply voltage, while the Reset Mode (RM) pin selects fast/slow power-on reset delay timing per internal threshold comparison.

It uses a PMOS pass transistor architecture enabling dropout voltage as low as 300 mV at 180 mA, and features an integrated 20 kΩ pull-up on RO (Reset Output) - eliminating external components for 5 V systems. The EN pin provides logic-level shutdown with internal pull-down, reducing total system current to <3 µA in disable state.

Key Specifications

Pinout & Package

Package: PG-DSO-14 (14-pin plastic dual small outline, exposed pad not present in this variant; thermal path via pins 2–5 and 10–12 to PCB ground plane).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV73350PDBVR and MAX1725EUT50+T, TLE72792GV50XUMA1 uniquely combines AEC-Q100 Grade 0 qualification, integrated reset with configurable delay, early warning sensing, and ultra-low quiescent current - making it irreplaceable for battery-permanent automotive control units requiring functional safety awareness.

Availability

TLE72792GV50XUMA1 is available at Aetrix Electronics and suitable for Body Control Modules, Engine Control Units, ADAS camera ECUs, and Electric Power Steering sensor interfaces requiring stable component supply, automotive qualification, and long-term lifecycle support.

Supply support for TLE72792GV50XUMA1 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 manufacturing and R&D infrastructure.

The TLE7279 series belongs to Infineon's Automotive Linear Regulator product line, designed specifically for robust, low-power microcontroller supply in harsh environments - emphasizing ultra-low IQ, wide input range, and integrated system-monitoring features.

FAQ

What is the function of the RM pin on TLE72792GV50XUMA1?

The RM (Reset Mode) pin selects the power-on reset delay timing: logic LOW configures fast reset timing (~10 ms), while logic HIGH selects slow timing (~100 ms). This is implemented via internal resistor ladder and comparator thresholds - no external components required. RM must be tied to GND or Q; floating is not allowed per datasheet design guidance.

Can TLE72792GV50XUMA1 operate with a 47 µF output capacitor?

No - the datasheet specifies a minimum output capacitance of 470 nF with ESR ≤3 Ω at 10 kHz for stability. A 47 µF aluminum or tantalum capacitor typically exhibits ESR >10 Ω and introduces phase shift that risks oscillation. Use only ceramic capacitors meeting the stated C_Q and ESR requirements, placed within 3 mm of pins 9 (Q) and 2–5 (GND).

Does TLE72792GV50XUMA1 require an external pull-up on the RO pin?

No - the TLE7279-2GV50 variant (including TLE72792GV50XUMA1) integrates a 20 kΩ pull-up resistor from RO to Q. External pull-up is unnecessary and may cause contention. For TLE7279-2GV33/GV26 variants, an external pull-up is required; but this part number is the GV50 version confirmed by package marking and datasheet section 2.2.

How does the Sense Input (SI) and Sense Output (SO) work together?

SI monitors an external voltage node (e.g., main 12 V rail); when that voltage drops below a threshold derived from V_Q, the internal comparator asserts SO low - providing early warning before V_Q collapses. SO has an integrated 20 kΩ pull-up to V_Q, so it drives high when inactive. This enables predictive system response, such as logging fault data or initiating controlled shutdown prior to brownout.