Texas Instruments TPS715A01DRVRM3

Overview

TPS715A01DRVRM3 from Texas Instruments is a 80-mA, adjustable-output 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 including MSP430-based sensor nodes and portable medical devices.

For engineers reviewing the TPS715A01DRVRM3 datasheet, TPS715A01DRVRM3 pinout, TPS715A01DRVRM3 application, or TPS715A01DRVRM3 equivalent, key selection criteria include dropout voltage at 80 mA (650 mV typ), ground current stability across load (3.2–4.8 μA), output capacitor minimum (1 μF for new chip), and WSON-6 package thermal performance (R_θJA = 69.5°C/W).

Technical Context

The TPS715A01DRVRM3 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 internal soft-start limits inrush into the output capacitor during power-up.

It supports both fixed and adjustable configurations via FB pin; for TPS715A01DRVRM3, the "01" suffix denotes the adjustable version requiring external R1/R2 feedback. The device remains stable with ≥0.47-μF output capacitance (derated), and achieves 60-dB PSRR at 100 kHz with 10-μF C_OUT.

Key Specifications

Pinout & Package

TPS715A01DRVRM3 is housed in a 2-mm × 2-mm, 6-pin WSON (DRV) package with exposed thermal pad. The package supports hand-held and ultra-portable applications and provides optimized thermal performance for space-constrained designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS715A01DRVRM3, TPS71533DRVR offers plug-and-play simplicity for 3.3-V use cases but sacrifices adjustability, while MCP1703T-3302E/MB trades wide input range, overcurrent protection, and thermal efficiency for lower unit cost in low-voltage consumer designs.

Availability

TPS715A01DRVRM3 is available at Aetrix Electronics and suitable for wireless sensor networks, portable medical diagnostics, and industrial I/O modules requiring stable component supply with long lifecycle assurance.

Supply support for TPS715A01DRVRM3 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.

The TPS715A product line delivers ultra-low-IQ, wide-input LDOs specifically engineered for battery longevity and system-level reliability in space- and power-constrained edge devices.

FAQ

What output voltage range does the TPS715A01DRVRM3 support?

The TPS715A01DRVRM3 supports an adjustable output voltage range of 1.205 V to 15 V, set by an external resistor divider connected to the FB pin. This range is confirmed in the Electrical Characteristics table for the "new chip" variant and enables flexible rail generation for mixed-voltage systems without requiring multiple fixed-output regulators.

Does the TPS715A01DRVRM3 require an input capacitor?

The TPS715A01DRVRM3 does not require an input capacitor for stability, but TI recommends a ≥0.047-μF ceramic capacitor from IN to GND to counteract source inductance and prevent system-level ringing during load transients - especially critical in battery-fed or long-trace PCB layouts.

What is the maximum allowable input voltage for the TPS715A01DRVRM3?

The absolute maximum input voltage for the TPS715A01DRVRM3 is 30 V, as specified in Section 5.1 of the datasheet for the "new chip" variant. However, the recommended operating range remains 2.5 V to 24 V, and sustained operation above 24 V may impact long-term reliability or thermal margin.

How does the TPS715A01DRVRM3 handle overcurrent conditions?

The TPS715A01DRVRM3 employs a brick-wall overcurrent protection scheme that limits output current to 160–500 mA depending on input voltage. During a fault, the device maintains current limiting without shutdown, allowing recovery once the overload is removed - but continuous operation in current limit is not recommended due to elevated power dissipation.

Is the TPS715A01DRVRM3 compatible with ceramic output capacitors?

Yes - the TPS715A01DRVRM3 is explicitly designed to be stable with ceramic output capacitors ≥0.47 μF (effective value after derating). The datasheet confirms stability across all ceramic dielectrics meeting this minimum effective capacitance, eliminating reliance on higher-ESR tantalum or aluminum electrolytics.