Texas Instruments TPS715A01DRBT-NM

Overview

TPS715A01DRBT-NM from Texas Instruments is a 80-mA, adjustable-output 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 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 TPS715A01DRBT-NM datasheet, TPS715A01DRBT-NM pinout, TPS715A01DRBT-NM application, or TPS715A01DRBT-NM equivalent, this page delivers verified electrical specs, package mapping to DRB (VSON-8), thermal performance data, and real-world design context for high-reliability, low-I_Q power management in constrained environments.

Technical Context

The TPS715A01DRBT-NM 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-temperature light-load conditions. Its brick-wall overcurrent protection triggers at 160–500 mA depending on input voltage, and dropout voltage remains stable at 650 mV (typ) at 80 mA load.

This "new chip" variant includes internal soft-start to limit inrush current into the output capacitor and supports ≥0.47 μF effective C_OUT (derated 50%) for stability - unlike legacy versions requiring ≥1 μF nominal. Thermal resistance is rated at R_θJA = 55.8°C/W for the DRB package on JEDEC 2s2p board.

Key Specifications

Pinout & Package

TPS715A01DRBT-NM uses the DRB package: 8-pin VSON (3 mm × 3 mm, exposed thermal pad), non-magnetic variant optimized for MRI-compatible medical imaging systems.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-quiescent-current LDO applications.

Compared with TPS7A0533DRVR and MCP1703T-3302E/MB, the TPS715A01DRBT-NM uniquely combines 24-V input tolerance, 1.205–15-V adjustability, 3.2-μA I_Q, and non-magnetic DRB packaging - making it irreplaceable in long-life, high-VIN, MRI-safe applications.

Availability

TPS715A01DRBT-NM is available at Aetrix Electronics and suitable for home automation sensor nodes, portable medical monitors, and smart grid endpoints requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for TPS715A01DRBT-NM 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 ICs, with decades of expertise in high-reliability, low-power system solutions.

The TPS715A product line was engineered specifically for ultra-low-power, wide-input-voltage battery and industrial applications - prioritizing quiescent current minimization, thermal robustness, and medical-grade packaging integrity.

FAQ

What is the maximum input voltage supported by the TPS715A01DRBT-NM?

The TPS715A01DRBT-NM supports a maximum input voltage of 24 V under recommended operating conditions. The "new chip" variant also tolerates up to 30 V under absolute maximum ratings, though sustained operation above 24 V is not advised. This 24-V rating enables direct connection to industrial 24-V rails and multi-cell battery stacks without pre-regulation - a key differentiator from most sub-20-V LDOs.

Does the TPS715A01DRBT-NM require an external feedback resistor network?

Yes - the "01" suffix denotes the adjustable version of the TPS715A, meaning the TPS715A01DRBT-NM requires external R1/R2 resistors connected to the FB pin to set the output voltage within 1.205 V to 15 V. For example, 1.8 V output uses R1 = 1 MΩ and R2 = 1 MΩ. Fixed-output variants (e.g., TPS715A33) omit the FB pin and do not require external resistors.

Is the TPS715A01DRBT-NM compatible with ceramic output capacitors?

Yes - the TPS715A01DRBT-NM is stable with any ceramic output capacitor ≥0.47 μF (50% derated value), including X5R and X7R types. Unlike older LDOs, it does not require ESR tuning or tantalum capacitors. The 0.47-μF minimum applies to effective capacitance at operating bias and temperature - ensuring stability across –40°C to +125°C without additional compensation components.

What does the "-NM" suffix indicate in TPS715A01DRBT-NM?

"-NM" designates the non-magnetic version of the DRB (VSON-8) package. This variant replaces magnetic materials in the leadframe and mold compound to eliminate magnetic field interference - certified for use in MRI environments and other applications where magnetic susceptibility must be minimized. Standard TPS715A01DRBT lacks this qualification.

How does the TPS715A01DRBT-NM handle short-circuit conditions?

The TPS715A01DRBT-NM employs a brick-wall overcurrent protection scheme that limits output current to 160–500 mA depending on input voltage (e.g., 500 mA at VIN ≥ 3.5 V). During a short, the output voltage collapses and the device enters constant-current mode - dissipating power as (VIN – VOUT) × I_CL. It does not latch off or auto-recover; normal regulation resumes once the fault is removed and thermal limits are respected.