Texas Instruments TPS7A1510PDRVR

Overview

TPS7A1510PDRVR from Texas Instruments is a 400-mA ultra-low-dropout linear regulator optimized for battery-powered systems requiring sub-1-V input and 1.0-V fixed output. It operates with VIN as low as 0.7 V (VOUT + 100 mV), delivers ±1% output accuracy over load/line/temperature, and achieves 80-mV dropout at 400 mA - enabling high-efficiency power delivery to core logic in camera modules and wearables.

For engineers reviewing the TPS7A1510PDRVR datasheet, TPS7A1510PDRVR pinout, TPS7A1510PDRVR application, or TPS7A1510PDRVR equivalent, key selection considerations include its dual-rail architecture (IN + BIAS), active output discharge, 20-mV load transient response (1 mA → 250 mA in 10 μs), and WSON-6 package thermal performance (RθJA = 75.7°C/W).

Technical Context

The TPS7A1510PDRVR uses a bias-supplied control circuitry architecture: the IN pin carries the main power path (0.7–2.2 V), while the BIAS pin (2.2–5.5 V) powers internal reference and regulation circuitry - decoupling efficiency from low-VIN constraints. This enables stable operation even when VIN is only 100 mV above VOUT.

It integrates foldback current limiting (ICL = 450–1100 mA, ISC = 270 mA), global UVLO on both IN and BIAS pins (with hysteresis), active overshoot pulldown, and thermal shutdown (165°C shutdown / 140°C reset). The SENSE pin supports remote feedback for precision regulation at point-of-load.

Key Specifications

Pinout & Package

TPS7A1510PDRVR is housed in a 2-mm × 2-mm, 6-pin WSON package with exposed thermal pad (electrically tied to GND). The package supports high thermal performance (RθJA = 75.7°C/W) and compact PCB layout for space-constrained portable devices.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-input, low-output LDO applications.

Compared with XC6216D102MR-G and RT9080AL-10GJ6F, the TPS7A1510PDRVR uniquely supports sub-1.1-V input via its BIAS-assisted architecture, delivers superior transient response (20 mV vs ≥35 mV), and provides active discharge - making it the only option qualified for high-reliability, ultra-low-VIN portable applications.

Availability

TPS7A1510PDRVR is available at Aetrix Electronics and suitable for camera modules, wireless earbuds, and smart watches requiring stable component supply across long-lifecycle consumer electronics programs.

Supply support for TPS7A1510PDRVR 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 headquartered in Dallas, Texas, designing and manufacturing analog and embedded processing chips for industrial, automotive, and personal electronics markets.

The TPS7A15 family was developed specifically for ultra-low-input, low-output voltage regulation in space-constrained, battery-powered devices - emphasizing efficiency at near-zero VIN–VOUT differentials and robust transient immunity.

FAQ

What is the minimum input voltage required for TPS7A1510PDRVR to regulate 1.0 V?

The TPS7A1510PDRVR requires VIN ≥ VOUT + 100 mV under recommended operating conditions, meaning it can regulate 1.0 V with as little as 1.1 V on the IN pin - provided the BIAS pin is supplied at ≥2.2 V or VOUT + 1.4 V (i.e., ≥2.4 V). This ultra-low dropout capability is enabled by its dual-rail architecture and is validated per TI's SBVS436B datasheet Section 6.3.

Does TPS7A1510PDRVR support remote voltage sensing?

Yes, the TPS7A1510PDRVR includes a dedicated SENSE pin that connects to the load side of PCB traces. When used, it closes the feedback loop at the point-of-load, eliminating voltage drop errors caused by trace resistance between the OUT pin and the powered device - ensuring ±1% regulation accuracy reaches the actual load.

What is the purpose of the BIAS pin on TPS7A1510PDRVR?

The BIAS pin on TPS7A1510PDRVR supplies power to the internal reference, error amplifier, and control circuitry independently from the main IN rail. This allows the regulator to maintain full functionality and regulation accuracy even when VIN is as low as 1.1 V for a 1.0-V output - a capability impossible with single-supply LDOs and essential for extending battery life in portable devices.

How does the active discharge function work on TPS7A1510PDRVR?

The TPS7A1510PDRVR implements active discharge via an internal 36-Ω pulldown resistor (enabled only in P-version packages like PDRVR) that connects OUT to GND when the device is disabled (EN low), enters thermal shutdown, or drops below UVLO. This ensures rapid, controlled discharge of output capacitance - critical for predictable power sequencing and avoiding latch-up in downstream logic.

Is TPS7A1510PDRVR pin-compatible with other members of the TPS7A15 family?

Yes, all TPS7A15 variants in the WSON-6 (DRV) package - including TPS7A1510PDRVR - share identical pinout, footprint, and thermal pad layout per TI's SBVS436B datasheet Figure 5-2. This allows drop-in replacement across output voltages (0.5 V to 2.0 V) without PCB redesign, simplifying voltage-scaling during design iteration or qualification.