Texas Instruments TPS72011QDRVRQ1

Overview

TPS72011QDRVRQ1 from Texas Instruments is an automotive-grade, ultra-low-input-voltage, RF-optimized low-dropout linear regulator with BIAS pin architecture. It delivers 350 mA output current at 1.1 V input, supports 1.1 V to 4.5 V VIN range, achieves 110 mV dropout at full load, and maintains 48 μVRMS output noise (10 Hz–100 kHz) for powering sensitive analog/RF circuits in camera modules and infotainment systems.

For engineers reviewing the TPS72011QDRVRQ1 datasheet, TPS72011QDRVRQ1 pinout, TPS72011QDRVRQ1 application, or TPS72011QDRVRQ1 equivalent, key selection criteria include its dual-rail operation (VIN + VBIAS), light-load regulation with floating IN, 38 μA quiescent current, AEC-Q100 Grade 1 qualification (–40°C to +125°C), and stability with only 2.2 μF ceramic output capacitance.

Technical Context

The TPS72011QDRVRQ1 implements a dual-rail NMOS-based LDO architecture where VIN supplies the power path and VBIAS powers the control circuitry-enabling high PSRR (80 dB at 10 kHz) even at ultra-low headroom (VIN – VOUT ≥ 0.5 V). Its BIAS rail must be ≥ (VOUT + 1.4 V) or 2.6 V, allowing efficient use of pre-regulated supplies like DC-DC outputs.

It features a novel floating-IN mode: when VIN is disconnected, the device regulates light loads (<500 μA) using current sourced solely from VBIAS-critical for power-gating architectures. Built-in soft-start limits inrush current to 100 mA + ILOAD and ensures monotonic VOUT rise with ≤3% overshoot.

Key Specifications

Pinout & Package

TPS72011QDRVRQ1 is housed in a thermally enhanced 2.00 mm × 2.00 mm, 6-pin WSON package (DRV) with exposed thermal pad-designed for high-density automotive PCB layouts and optimized for low junction-to-board thermal resistance (36.1°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS72011QDRVRQ1, the TPS72012QDRVRQ1 offers identical performance at 1.2 V output-ideal for voltage-flexible SoCs-while the TLV70711PDPWR lacks automotive qualification, BIAS functionality, and current capability, limiting it to non-safety-critical designs.

Availability

TPS72011QDRVRQ1 is available at Aetrix Electronics and suitable for automotive camera modules, FPD-Link power delivery, and infotainment SoC core supply applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TPS72011QDRVRQ1 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 power management technologies, with decades of automotive qualification expertise and broad AEC-Q100 product coverage.

The TPS720-Q1 family was designed specifically for high-performance, low-noise power delivery in automotive ADAS and infotainment systems-emphasizing ultra-low dropout, dual-rail efficiency, and robust operation across –40°C to +125°C.

FAQ

What is the minimum input voltage required for TPS72011QDRVRQ1 to regulate at 1.1 V output?

The TPS72011QDRVRQ1 requires a minimum input voltage of 1.1 V to maintain regulation at 1.1 V output, enabled by its ultra-low dropout architecture. At 350 mA load, the dropout voltage is specified at 110 mV, meaning VIN must be ≥1.21 V for full-load operation-but regulation begins at VIN = 1.1 V under light loads. The device remains functional down to VIN = 1.1 V across the full temperature range.

How does the BIAS pin function in TPS72011QDRVRQ1, and what voltage must it be set to?

The BIAS pin in TPS72011QDRVRQ1 powers the internal control circuitry independently of VIN, enabling high PSRR and low-noise operation. It must be supplied with ≥(VOUT + 1.4 V) or 2.6 V-whichever is greater-so for 1.1 V output, minimum VBIAS is 2.5 V. This allows efficient use of higher-voltage rails (e.g., 3.3 V or 5 V) to bias the regulator while VIN operates at minimal headroom.

Can TPS72011QDRVRQ1 regulate when the IN pin is left unconnected?

Yes-TPS72011QDRVRQ1 supports regulated operation with floating IN under light-load conditions (≤500 μA), sourcing current exclusively from the BIAS pin. This feature is explicitly designed for power-gating scenarios, such as disabling a DC-DC converter while maintaining SoC memory retention voltage. Output accuracy remains within ±1% under this condition.

What output capacitor value and type are required for stability with TPS72011QDRVRQ1?

TPS72011QDRVRQ1 is stable with a minimum 2.2 μF X5R or X7R ceramic capacitor on the OUT pin. Maximum ESR must be <250 mΩ. TI specifies no minimum ESR requirement, and the device does not require series resistance for stability-enabling compact, low-BOM-count designs ideal for space-constrained automotive modules.

Is TPS72011QDRVRQ1 qualified for automotive applications, and what AEC-Q100 grade does it meet?

Yes-TPS72011QDRVRQ1 is fully AEC-Q100 qualified for automotive use, meeting Grade 1 requirements with an ambient operating temperature range of –40°C to +125°C. It also achieves H2-level HBM ESD (±2000 V) and C6-level CDM ESD (±500 V), making it suitable for deployment in safety-critical ADAS and infotainment systems.