Texas Instruments TPS715A01DRBRM3

Overview

TPS715A01DRBRM3 from Texas Instruments is an adjustable-output, 80-mA, low-dropout linear regulator with 3.2-μA quiescent current, 2.5–24-V input range, and 1.205–15-V output voltage capability. It features internal soft-start, overcurrent protection, and operates from –40°C to +125°C - designed for ultra-low-power battery-powered systems such as MSP430-based sensor nodes and portable medical monitors.

For engineers reviewing the TPS715A01DRBRM3 datasheet, TPS715A01DRBRM3 pinout, TPS715A01DRBRM3 application, or TPS715A01DRBRM3 equivalent, key selection criteria include dropout voltage at 80 mA (650 mV typ), ground current stability across 0–80 mA load, thermal performance in the 3-mm × 3-mm VSON package, and compatibility with ≥0.47-μF output capacitance for stability.

Technical Context

The TPS715A01DRBRM3 implements a CMOS pass transistor architecture with a 1.205-V internal bandgap reference and leakage-null control circuit active under high-VIN/low-IOUT conditions. Its brick-wall overcurrent protection triggers at 160–500 mA depending on VIN, and it enters dropout when VIN falls below VOUT + 650 mV (typ) at full load.

It supports both fixed and adjustable configurations via FB pin; in adjustable mode, external R1/R2 set VOUT = 1.205 V × (1 + R1/R2). The device achieves stable regulation with any COUT ≥ 0.47 μF (derated), and its PSRR remains ≥60 dB up to 100 kHz with 10-μF output capacitor.

Key Specifications

Pinout & Package

TPS715A01DRBRM3 is housed in an 8-pin, 3-mm × 3-mm VSON (DRB) package with exposed thermal pad. This RoHS-compliant, non-magnetic variant is specified for medical imaging applications where magnetic interference must be minimized.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS715A01DRBRM3, TPS71533DRBR offers plug-and-play 3.3-V regulation but forfeits adjustability, while MCP1703T-3302E/MB trades input voltage range, protection, and thermal capability for lower cost and smaller size in sub-6-V applications.

Availability

TPS715A01DRBRM3 is available at Aetrix Electronics and suitable for home automation, portable medical devices, and industrial PLC modules requiring stable component supply with long-term manufacturability and medical-grade packaging options.

Supply support for TPS715A01DRBRM3 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 LDO design expertise and broad automotive/industrial qualification.

The TPS715A product line delivers ultra-low-IQ, wide-input LDOs specifically engineered for battery longevity and robustness in space-constrained, thermally demanding applications - including medical imaging, smart sensors, and grid infrastructure.

FAQ

What output voltage range does the TPS715A01DRBRM3 support?

The TPS715A01DRBRM3 supports an adjustable output voltage range of 1.205 V to 15 V, set by an external resistor divider connected to the FB pin. Its internal 1.205-V reference ensures accuracy across temperature and load, enabling precise customization for mixed-signal systems requiring non-standard supply rails.

Does the TPS715A01DRBRM3 require an input capacitor?

An input capacitor is not required for stability of the TPS715A01DRBRM3, but Texas Instruments recommends a minimum 0.047-μF ceramic capacitor from IN to GND to counteract source impedance effects that may cause ringing or oscillation during load transients - especially in high-inductance battery or cable-fed configurations.

What is the maximum allowable input voltage for the TPS715A01DRBRM3?

The TPS715A01DRBRM3 new-chip version supports up to 30 V absolute maximum input voltage, though recommended operating input is 2.5 V to 24 V. Exceeding 24 V risks exceeding thermal limits under load; sustained operation above 24 V should be validated per application-specific power dissipation and ambient conditions.

How does the TPS715A01DRBRM3 handle short-circuit events?

The TPS715A01DRBRM3 employs a brick-wall overcurrent protection scheme that limits output current to 160–500 mA depending on input voltage. During a short, VOUT collapses and the device dissipates (VIN – VOUT) × ICL - requiring thermal design consideration to avoid sustained junction temperatures above 150°C.

Is the TPS715A01DRBRM3 compatible with ceramic output capacitors?

Yes - the TPS715A01DRBRM3 is stable with ceramic output capacitors ≥0.47 μF (50% derated value), eliminating reliance on higher-ESR tantalum or aluminum electrolytic types. This simplifies layout, improves reliability, and reduces cost in space-constrained designs like wearable and portable medical devices.