Texas Instruments TPS74512PQWDRVRQ1

Overview

TPS74512PQWDRVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive ultra-low-dropout linear regulator delivering 500 mA with ±0.85% output accuracy at 25°C, 160 mV max dropout at 500 mA (3.3 VOUT), and integrated power-good (PG) output in a 2-mm × 2-mm wettable flank WSON-6 package. It operates from 1.5 V to 6.0 V input and supports fixed 1.2 V output for infotainment power rails.

For engineers reviewing the TPS74512PQWDRVRQ1 datasheet, TPS74512PQWDRVRQ1 pinout, TPS74512PQWDRVRQ1 application, or TPS74512PQWDRVRQ1 equivalent, key selection criteria include its wettable flank WSON-6 footprint for automated optical inspection, AEC-Q100 qualification for –40°C to +125°C ambient operation, push-pull PG output with 92% VOUT threshold, and stability with ≥1-µF ceramic output capacitance.

Technical Context

The TPS74512PQWDRVRQ1 implements a precision band-gap reference and error amplifier to achieve ±1.5% max output accuracy over –40°C to +150°C junction temperature. Its internal foldback current limit and thermal shutdown (170°C trip) enable robust short-circuit protection without external components.

It features dual-mode power-good functionality-push-pull PG output (supported for VOUT ≥ 1.0 V) with VOH(PG) = 0.8×VOUT at 0.04 mA source, and open-drain option requiring external pull-up. EN pin logic thresholds are VEN(HI) = 1.0 V min and VEN(LO) = 0.3 V max, enabling direct interface with 1.8-V or 3.3-V microcontrollers.

Key Specifications

Pinout & Package

TPS74512PQWDRVRQ1 uses a 6-pin wettable flank WSON package (2.00 mm × 2.00 mm body, 0.75 mm height) with exposed thermal pad electrically connected to GND. The package supports automated optical inspection (AOI) of solder joints.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS74512PQWDRVRQ1, TPS74612PQWDRVRQ1 offers superior PSRR and programmable startup but requires layout review for timing compliance, while NCP114AMX120TBG trades automotive qualification and power-good functionality for smaller footprint and lower cost in non-critical roles.

Availability

TPS74512PQWDRVRQ1 is available at Aetrix Electronics and suitable for automotive head units, front/rear cameras, and cluster displays requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TPS74512PQWDRVRQ1 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

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in automotive-grade power management solutions.

The TPS745-Q1 product line delivers AEC-Q100 qualified ultra-low-dropout regulators with integrated power-good for safety-critical automotive subsystems including ADAS, infotainment, and telematics.

FAQ

What is the maximum output current capability of the TPS74512PQWDRVRQ1?

The TPS74512PQWDRVRQ1 delivers up to 500 mA of continuous output current under recommended operating conditions (TJ ≤ 150°C, VIN ≥ VOUT + 0.5 V). Current limit is internally set at 720 mA typical, with foldback behavior during sustained overload or short-circuit events to limit thermal dissipation. Derating applies above +125°C ambient.

Does the TPS74512PQWDRVRQ1 require an external feedback resistor network?

No, the TPS74512PQWDRVRQ1 is a fixed 1.2-V output variant. Pin 2 (FB) is not connected internally and must be left unconnected per the datasheet. External resistors are only required for adjustable-output versions such as TPS74501.

What package type and dimensions does the TPS74512PQWDRVRQ1 use?

The TPS74512PQWDRVRQ1 uses a 6-pin wettable flank WSON package with 2.00 mm × 2.00 mm body size and 0.75 mm height. The exposed thermal pad is electrically tied to GND and must be soldered to the PCB ground plane for optimal thermal performance and mechanical reliability.

How does the power-good (PG) output function on the TPS74512PQWDRVRQ1?

The TPS74512PQWDRVRQ1 features a push-pull PG output that asserts high when VOUT reaches ≥92% of nominal (1.104 V) and de-asserts low when VOUT falls ≤90% (1.08 V). It sources up to 0.04 mA and sinks up to 2.0 mA, eliminating the need for an external pull-up resistor in most system designs.

Is the TPS74512PQWDRVRQ1 qualified for automotive applications?

Yes, the TPS74512PQWDRVRQ1 is AEC-Q100 qualified for automotive applications (Grade 1: –40°C to +125°C ambient), with device junction temperature rated from –40°C to +150°C. It includes functional safety documentation and supports ISO 26262 ASIL-B system-level development.