Texas Instruments TLV73315PQDRVRQ1

Overview

TLV73315PQDRVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified, capacitor-free 300-mA low-dropout linear regulator delivering 1.5 V output with 125 mV dropout at 300 mA, ±1.4% output accuracy, and 34 µA quiescent current - used for power conditioning in camera modules and infotainment domain controllers.

For engineers reviewing the TLV73315PQDRVRQ1 datasheet, TLV73315PQDRVRQ1 pinout, TLV73315PQDRVRQ1 application, or TLV73315PQDRVRQ1 equivalent, key selection criteria include capacitor-free stability, thermal shutdown behavior at 160°C, active output discharge via 120-Ω pulldown, foldback current limiting, and compatibility with 1.4–5.5 V input rails in space-constrained automotive PCBs.

Technical Context

The TLV73315PQDRVRQ1 employs a PMOS pass transistor architecture enabling ultra-low dropout (125 mV @ 300 mA, 3.3 VOUT) and intrinsic 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 (VIN < VOUT + VDO), and disabled state with active pulldown - governed by independent UVLO (1.4 V rising threshold), EN pin logic (VEN(HI) = 0.9 V, VEN(LO) = 0.35 V), and thermal shutdown (160°C trip, 140°C reset).

Key Specifications

Pinout & Package

TLV73315PQDRVRQ1 is housed in a 2.0-mm × 2.0-mm, 6-pin WSON package (DRV) with exposed thermal pad electrically tied to GND - optimized for high-power-density automotive layouts and automated optical inspection (AOI).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV73315PDBVRQ1, the TLV73315PQDRVRQ1 offers superior thermal performance and smaller footprint - critical for camera modules with limited PCB real estate. Against TPS7B8133QDGNRQ1, it trades off power-good functionality for lower IQ and exact 1.5 V output, simplifying design where voltage monitoring is handled externally.

Availability

TLV73315PQDRVRQ1 is available at Aetrix Electronics and suitable for automotive camera modules, infotainment domain controllers, and ADAS sensor hubs requiring stable component supply with AEC-Q100 qualification and long-term production support.

Supply support for TLV73315PQDRVRQ1 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 designing analog ICs, embedded processors, and connectivity solutions for automotive, industrial, and consumer markets.

The TLV733P-Q1 product line delivers capacitor-free, low-IQ LDOs targeting space- and power-constrained automotive subsystems - specifically engineered for camera, infotainment, and telematics applications demanding AEC-Q100 Grade 1 reliability.

FAQ

Does TLV73315PQDRVRQ1 require an output capacitor to operate stably?

No, TLV73315PQDRVRQ1 is designed with a capacitor-free architecture and remains stable with zero output capacitance. An optional 1-µF ceramic capacitor improves load transient response but is not required for regulation stability - enabling smaller form factors and eliminating inrush current at startup in camera modules.

What is the maximum junction temperature specification for TLV73315PQDRVRQ1?

The absolute maximum junction temperature for TLV73315PQDRVRQ1 is +150°C, with thermal shutdown activating at approximately +160°C and resetting at +140°C. Operation should be limited to ≤150°C junction temperature for reliable long-term performance in automotive environments.

How does the enable pin (EN) function on TLV73315PQDRVRQ1?

The EN pin on TLV73315PQDRVRQ1 is active-high: the device turns on when EN voltage exceeds 0.9 V (VEN(HI)) and shuts down when EN falls below 0.35 V (VEN(LO)). No internal pullup or pulldown exists - external logic or resistor divider must drive EN explicitly. When disabled, the 120-Ω active pulldown discharges the output.

Can TLV73315PQDRVRQ1 be used with input voltages below 1.5 V?

Yes - TLV73315PQDRVRQ1 supports input voltages as low as 1.4 V, enabling operation with partially discharged 1.5 V battery sources or low-headroom intermediate rails. However, dropout voltage increases at lower VIN; at 1.4 V input, regulation is only possible if VOUT + VDO ≤ 1.4 V - which restricts usable load current well below 300 mA.

Is TLV73315PQDRVRQ1 pin-compatible with other devices in the TLV733P-Q1 family?

TLV73315PQDRVRQ1 shares identical pinout and package (6-pin WSON-DRV) with all TLV733xPQDRVRQ1 variants (e.g., TLV73310, TLV73318). Fixed-output versions differ only in internal feedback network - allowing direct substitution when 1.5 V output is required, provided input voltage and load current remain within shared specifications.