Texas Instruments TPS715A01DRBTG4

Overview

TPS715A01DRBTG4 from Texas Instruments is a fixed-output, 80-mA, low-dropout linear regulator with 3.2 μA quiescent current, 2.5 V to 24 V input range, and 1.205 V to 15 V adjustable output 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 TPS715A01DRBTG4 datasheet, TPS715A01DRBTG4 pinout, TPS715A01DRBTG4 application, or TPS715A01DRBTG4 equivalent, this page delivers verified electrical specs, thermal performance data, package-validated pin functions, and real-world implementation guidance for high-reliability, low-I_Q power management in constrained environments.

Technical Context

The TPS715A01DRBTG4 implements a CMOS pass transistor architecture with a 1.205-V internal bandgap reference and leakage-null control circuit active under high-V_IN/high-T_J light-load conditions. Its brick-wall overcurrent protection activates at 160–500 mA depending on input voltage and chip revision.

It supports stable operation with ≥0.47 μF output capacitance (derated), achieves 650 mV typical dropout at 80 mA, and delivers 425 μV_RMS output noise (200 Hz–100 kHz) - optimized for noise-sensitive analog and mixed-signal loads in industrial and medical applications.

Key Specifications

Pinout & Package

TPS715A01DRBTG4 uses the DRB (VSON-8) 3-mm × 3-mm thermally enhanced package with exposed thermal pad. Pin 1 is IN; pins 4 and 5 are GND (including thermal pad); pin 8 is OUT; pins 2, 3, 6, and 7 are NC (no-connect, recommended tied to GND for thermal performance).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS71533DRBT, the TPS715A01DRBTG4 provides adjustable output flexibility and FB pin access; compared with MCP1703T-3302E/MB, it offers higher input voltage tolerance, integrated overcurrent protection, and superior thermal performance in the DRB package - making it the preferred choice for demanding industrial and medical designs.

Availability

TPS715A01DRBTG4 is available at Aetrix Electronics and suitable for home automation sensor nodes, portable medical monitors, and smart grid endpoints requiring stable component supply with long-term lifecycle assurance and traceable sourcing.

Supply support for TPS715A01DRBTG4 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 industrial qualification.

The TPS715A series was engineered specifically for ultra-low-power, wide-input-voltage applications in battery-operated and energy-constrained systems - emphasizing quiescent current optimization, thermal robustness, and ease of integration in space-limited layouts.

FAQ

What is the maximum input voltage rating for the TPS715A01DRBTG4?

The TPS715A01DRBTG4 has an absolute maximum input voltage of 30 V for the new-chip revision, with recommended operation up to 24 V. Exceeding 24 V may reduce long-term reliability and is not covered by TI's recommended operating conditions - always verify actual VIN against the specific revision marked on the device.

Does the TPS715A01DRBTG4 require an external feedback resistor network?

No - the TPS715A01DRBTG4 is the adjustable-output variant and does require external R1/R2 resistors on the FB pin to set the output voltage between 1.205 V and 15 V. Unlike fixed-output versions (e.g., TPS71533), it lacks internal feedback dividers and relies on external components for regulation.

What is the minimum output capacitance required for stable operation of the TPS715A01DRBTG4?

The TPS715A01DRBTG4 requires a minimum effective output capacitance of 0.47 μF (derated) for stability. For the new-chip revision, TI specifies ≥1 μF nominal (≥0.5 μF effective after derating) - use X5R/X7R 0603 or larger ceramic capacitors with low ESR to ensure robust transient response and avoid oscillation.

How does the thermal performance of the TPS715A01DRBTG4 compare between DRB and DRV packages?

The DRB (VSON-8) package used in TPS715A01DRBTG4 achieves R_θJB = 29.2°C/W, significantly better than the DRV (WSON-6) package's 35.4°C/W. This 18% improvement in board-level thermal resistance makes DRB ideal for higher-power dissipation scenarios - especially when paired with a 2-layer PCB with ≥1 in² GND copper pour under the thermal pad.

Is the TPS715A01DRBTG4 compatible with MSP430 microcontrollers?

Yes - the TPS715A01DRBTG4 is explicitly designed for MSP430-specific power requirements. Its 3.2-μA quiescent current, wide input range (supports 3.6-V Li-ion to 24-V industrial rails), and ability to generate precise low-voltage rails (e.g., 1.8 V) make it a TI-recommended regulator for MSP430FRxx and MSP430Fxx families in battery-operated applications.