Texas Instruments TLV73325PQDRVRQ1

Overview

TLV73325PQDRVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified, capacitor-free 300-mA low-dropout linear regulator delivering 2.5 V output with 125 mV dropout at 300 mA, ±1.4% output accuracy, and 34 µA quiescent current in a 2.0-mm × 2.0-mm WSON-6 package. It serves as a primary power rail for camera module image sensors and automotive infotainment SoCs requiring stable, low-noise, fast-transient 2.5-V bias.

For engineers reviewing the TLV73325PQDRVRQ1 datasheet, TLV73325PQDRVRQ1 pinout, TLV73325PQDRVRQ1 application, or TLV73325PQDRVRQ1 equivalent, key selection criteria include its capacitor-free stability, 150°C junction temperature rating, active output discharge, foldback current limiting, and compatibility with automotive-grade thermal and ESD requirements (HBM ±2 kV, CDM ±500 V).

Technical Context

The TLV73325PQDRVRQ1 employs a PMOS pass transistor architecture enabling ultra-low dropout and inherent reverse-current blocking. Its capacitor-free control loop eliminates mandatory external output capacitance while maintaining stability across –40°C to +150°C junction temperature.

Functional modes include normal regulation, dropout operation (with degraded transient response), and disabled state with active 120-Ω pulldown. UVLO (rising threshold 1.4 V) and thermal shutdown (trip at 160°C, reset at 140°C) provide robust fault protection aligned with automotive safety requirements.

Key Specifications

Pinout & Package

Package: 2.0-mm × 2.0-mm WSON-6 (DRV) with exposed thermal pad electrically connected to GND - enables high-power-density layout and efficient heat dissipation on 2-layer automotive PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV73325PDBVRQ1, the TLV73325PQDRVRQ1 offers superior thermal performance and smaller footprint; compared with TPS7B8125QDGNRQ1, it supports wider input range (1.4 V–5.5 V) and lower quiescent current but lacks integrated thermal foldback hysteresis.

Availability

TLV73325PQDRVRQ1 is available at Aetrix Electronics and suitable for automotive camera modules, infotainment head-units, and navigation systems requiring stable component supply with AEC-Q100 qualification and long-term production continuity.

Supply support for TLV73325PQDRVRQ1 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 leader specializing in analog, embedded processing, and connectivity technologies for automotive, industrial, and consumer markets.

The TLV733P-Q1 product line delivers ultra-small, capacitor-free LDOs optimized for space-constrained, battery-sensitive automotive subsystems including ADAS cameras, infotainment SoCs, and telematics modems.

FAQ

What is the minimum input voltage required for TLV73325PQDRVRQ1 to regulate 2.5 V at 300 mA?

The TLV73325PQDRVRQ1 requires a minimum input voltage of 2.79 V to maintain regulation at 300 mA load, calculated as VOUT + VDO = 2.5 V + 290 mV. Below this, the device enters dropout mode. Its UVLO rising threshold is 1.4 V, but regulation only begins once VIN exceeds the dropout-adjusted minimum.

Does TLV73325PQDRVRQ1 require an output capacitor to operate stably?

No, TLV73325PQDRVRQ1 is designed for capacitor-free operation and remains stable without any output capacitor. An optional 1-µF ceramic capacitor improves load transient response, especially for slew rates >0.1 A/µs, but is not required for basic regulation or startup.

How does the active output discharge function work in TLV73325PQDRVRQ1?

When TLV73325PQDRVRQ1 is disabled via the EN pin, an internal 120-Ω pulldown resistor connects the OUT pin to GND. Discharge time depends on output capacitance and parallel load resistance, following t = 120·RL/(120+RL)·COUT. This ensures rapid, controlled rail collapse for automotive power sequencing compliance.

What is the thermal shutdown behavior of TLV73325PQDRVRQ1?

TLV73325PQDRVRQ1 triggers thermal shutdown at ~160°C junction temperature and resets at ~140°C. During shutdown, the output is disabled and the 120-Ω pulldown engages. Cycling indicates excessive power dissipation; for reliable operation, keep TJ ≤ 150°C using the DRV package's 92.5°C/W RθJA with proper GND pad layout.

Is TLV73325PQDRVRQ1 compatible with 1.8-V microcontroller GPIOs driving the EN pin?

Yes. TLV73325PQDRVRQ1 has VEN(HI) = 0.9 V and VEN(LO) = 0.35 V, making it fully compatible with 1.8-V logic outputs. A 1.8-V GPIO high (≥1.8 V) exceeds VEN(HI) by >0.9 V margin, ensuring robust enable; no level shifter is needed.