Texas Instruments TPS715A30DRVT

Overview

TPS715A30DRVT from Texas Instruments is a fixed-output 3.0-V, 80-mA low-dropout linear regulator with 3.2-μA quiescent current, 2.5–24-V input range, and 650-mV typical dropout at full load. It features overcurrent protection, internal soft-start, and operates from –40°C to +125°C - designed for ultra-low-power battery-powered systems such as portable medical sensors and MSP430-based IoT nodes.

For engineers reviewing the TPS715A30DRVT datasheet, TPS715A30DRVT pinout, TPS715A30DRVT application, or TPS715A30DRVT equivalent, key selection criteria include its sub-4-μA IQ across 0–80 mA load, stable operation with ≥0.47-μF output capacitance, WSON-6 package thermal performance (R_θJB = 29.2°C/W), and compatibility with high-input-voltage industrial rails up to 24 V.

Technical Context

The TPS715A30DRVT implements a CMOS pass transistor architecture with a 1.205-V internal bandgap reference and leakage-null control circuit active below 5 μA load. 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.

This device operates in two distinct functional modes: normal regulation (VIN > VOUT + VDO) and dropout (VIN ≤ VOUT + VDO), where output voltage tracks input. Transient response degrades significantly in dropout mode due to triode-region pass transistor behavior, and line/load transients are characterized up to 500 kHz with PSRR ≥60 dB at 100 kHz.

Key Specifications

Pinout & Package

TPS715A30DRVT 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 delivers superior board-level thermal performance (R_θJB = 29.2°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS715A30DRVT, TPS71533DRVT offers identical performance at 3.3 V but invalidates 3.0-V system margins, while MCP1700T-3002E/MB trades 24-V input capability and high-temp rating for lower IQ and higher current - making TPS715A30DRVT uniquely suited for ruggedized, wide-input, ultra-low-power embedded systems.

Availability

TPS715A30DRVT is available at Aetrix Electronics and suitable for portable medical sensors, smart building controllers, and industrial IoT gateways requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for TPS715A30DRVT 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 with emphasis on reliability, longevity, and industrial-grade qualification.

The TPS715A product line was engineered specifically for ultra-low-power, wide-input-voltage battery and industrial applications - prioritizing sub-5-μA quiescent current, 24-V tolerance, and robust thermal performance in miniaturized WSON packages.

FAQ

What is the maximum input voltage rating for TPS715A30DRVT?

The TPS715A30DRVT has an absolute maximum input voltage of 30 V for the new-chip revision, with recommended operation up to 24 V. This 24-V rating enables direct connection to industrial control buses and 24-V battery systems without external clamping or pre-regulation - a key differentiator versus most 12-V-rated LDOs.

Does TPS715A30DRVT require an input capacitor?

TPS715A30DRVT does not require an input capacitor for stability, but Texas Instruments recommends ≥0.047-μF ceramic at the IN pin to counteract source inductance and prevent system-level oscillation during load transients - especially when used with long traces or high-impedance sources like coin cells or energy harvesters.

What output capacitance is mandatory for stable operation of TPS715A30DRVT?

TPS715A30DRVT requires a minimum nominal output capacitance of 1 μF ceramic (derated to ≥0.47 μF effective) for guaranteed stability across temperature and process variation. Using less than 0.47 μF effective capacitance risks oscillation, particularly under light-load conditions or at high ambient temperatures.

How does the internal soft-start function in TPS715A30DRVT?

The TPS715A30DRVT incorporates internal soft-start that controls the ramp rate of the output voltage during power-up, limiting inrush current into the output capacitor. This prevents input rail collapse and avoids false resets in host microcontrollers - confirmed by fast power-up waveforms showing controlled VOUT rise within 1 ms under 50-mA load.

Is TPS715A30DRVT compatible with ceramic capacitors only, or can it use tantalum or electrolytic types?

TPS715A30DRVT is optimized for ceramic output capacitors and explicitly validated with ≥0.47-μF X7R/X5R ceramics. Tantalum or aluminum electrolytic capacitors are not recommended due to higher ESR, aging effects, and potential instability - the device's stability criteria assume low-ESR ceramic behavior per TI's design guidelines.