Infineon Technologies TLE7469GV53AUMA1

Overview

TLE7469GV53AUMA1 from Infineon Technologies is a dual-output automotive-grade linear voltage regulator providing 5.0 V ±2% (215 mA) and 3.3 V ±3% (200 mA) outputs in a PG-DSO-12 package. It integrates reset generation with adjustable power-on delay, window watchdog, early warning comparator, and inhibit control. Designed for microcontroller dual-rail supply-specifically Infineon XC164/XC161 families-it operates across -40 °C to 150 °C junction temperature with up to 45 V input.

For engineers reviewing the TLE7469GV53AUMA1 datasheet, TLE7469GV53AUMA1 pinout, TLE7469GV53AUMA1 application, or TLE7469GV53AUMA1 equivalent, key selection criteria include dual-voltage sequencing capability, ultra-low quiescent current (<55 µA), integrated watchdog timing control via DT pin, and AEC-Q100 qualification for under-hood automotive use.

Technical Context

The TLE7469GV53AUMA1 implements two independent LDO regulators with separate input paths (I1, I2) and output rails (Q1 = 5 V, Q2 = 3.3 V), enabling flexible power sequencing and differential voltage control (|VQ1 − VQ2| < 3.0 V). Its charge-pump-assisted architecture enables ultra-low dropout (300 mV typ. at 215 mA) while maintaining stability under wide input range (5.6–45 V) and high ambient temperature.

Integrated safety functions include overtemperature shutdown, short-circuit protected outputs, reverse-current blocking at Q1, and a window watchdog with configurable timeout via DT pin connection (GND/Q1/Q2). The early warning comparator (SI/SO pins) supports external rail supervision, and RO provides open-collector reset with internal 20 kΩ pull-up.

Key Specifications

Pinout & Package

Package: PG-DSO-12 (exposed thermal pad, RoHS-compliant, AEC-Q100 qualified).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV70733PDRVR and MAX16910ATP+, the TLE7469GV53AUMA1 uniquely combines AEC-Q100 Grade 0 rating, dual-rail sequencing control, and integrated safety functions (window watchdog, early warning, differential voltage guardband) in a single PG-DSO-12 package - making it irreplaceable for engine-compartment microcontroller supply.

Availability

TLE7469GV53AUMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, transmission control units, and ADAS camera ECUs requiring stable component supply across automotive production lifecycles.

Supply support for TLE7469GV53AUMA1 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 MCUs, and sensor solutions, with global R&D and manufacturing infrastructure.

The TLE7469 belongs to Infineon's TLE automotive linear regulator family, designed specifically to replace discrete LDO + supervisor + watchdog combinations in microcontroller power domains - emphasizing integration, safety, and under-hood reliability.

FAQ

What is the function of the DT pin on the TLE7469GV53AUMA1?

The DT (Delay Timing) pin selects reset and watchdog timeout durations by connecting it to GND, Q1, or Q2. Each connection sets a different RC-based timing constant inside the IC, allowing adjustment of power-on reset hold time and watchdog window without external components. This enables flexible synchronization with MCU boot sequences across varying system configurations.

Can the TLE7469GV53AUMA1 be used with a single input supply for both outputs?

Yes - I1 and I2 can be connected to the same 12 V or 24 V rail. However, the datasheet specifies distinct minimum input voltages: VI1 ≥ 5.6 V and VI2 ≥ 4.2 V (or 6.0 V if VI1 > 8 V). When sharing one source, ensure the input meets the higher threshold (6.0 V) to guarantee stable regulation on both Q1 and Q2 under all operating conditions.

How does the early warning comparator work, and what external components are needed?

The early warning comparator monitors voltage at SI against an internal reference derived from Q2. When SI exceeds the threshold (typically Q2 × 1.2), SO pulls low. No external components are required for basic operation; however, an external pull-up resistor on SO is needed if driving a logic input, and a voltage divider may be used on SI to scale higher-voltage rails (e.g., 12 V battery) into the comparator's valid input range.

Is the TLE7469GV53AUMA1 pin-compatible with the TLE7469GV52AUMA1?

Yes - both variants share identical PG-DSO-12 packaging, pinout, and electrical interface. The sole difference is the Q2 output voltage: GV53 delivers 3.3 V ±3%, while GV52 delivers 2.6 V ±4%. All other features - reset, watchdog, inhibit, early warning, and protection functions - operate identically, enabling drop-in replacement where 3.3 V core supply is required instead of 2.6 V.