Texas Instruments TPS7B8150DRVR

Overview

TPS7B8150DRVR from Texas Instruments is a 5-V fixed-output, 150-mA, 40-V-input ultra-low-I_Q LDO linear regulator in a 6-pin WSON package. It delivers 2.7 µA typical quiescent current at light loads, 180 mV typical dropout at 100 mA, and ±1.5% output accuracy over line, load, and temperature - enabling reliable operation in battery-powered smoke detectors and motor drive auxiliary rails.

For engineers reviewing the TPS7B8150DRVR datasheet, TPS7B8150DRVR pinout, TPS7B8150DRVR application, or TPS7B8150DRVR equivalent, key selection criteria include its 45-V transient tolerance, –40°C to +125°C ambient operating range, thermal shutdown with 20°C hysteresis, and compatibility with 1–200 µF ceramic output capacitors without external compensation.

Technical Context

The TPS7B8150DRVR implements a high-voltage-tolerant enable input (2–40 V), integrated undervoltage lockout (2.7 V threshold with 200 mV hysteresis), and foldback current limiting (180–690 mA). Its internal bandgap reference and error amplifier maintain regulation across 3–40 V input while supporting fast load transients via low-ESR capacitor stability.

Thermal management relies on the exposed thermal pad soldered to a GND plane, with R_θJA = 72.8°C/W (JEDEC standard board). The device enters shutdown below UVLO or above 175°C junction temperature, recovering only after thermal hysteresis and VIN rise above threshold.

Key Specifications

Pinout & Package

TPS7B8150DRVR uses a 6-pin WSON (DRV) package (2.00 mm × 2.00 mm) with an exposed thermal pad connected to GND. The package provides R_θJA = 72.8°C/W on JEDEC-standard board and requires soldering the thermal pad to maximize heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7B8133DRVR, the TPS7B8150DRVR provides identical performance in a 5-V configuration; compared with NCP163AMX50T2G, it offers superior quiescent current, transient robustness, and thermal fault recovery - critical for safety-certified battery systems.

Availability

TPS7B8150DRVR is available at Aetrix Electronics and suitable for smoke detectors, motion sensors, cordless power tools, and appliance battery packs requiring stable component supply across extended temperature and lifecycle demands.

Supply support for TPS7B8150DRVR 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for industrial, automotive, and consumer applications.

The TPS7B81 family is designed for high-reliability, ultra-low-power LDO regulation in harsh environments - targeting battery-backed safety systems, motor control auxiliaries, and space-constrained IoT endpoints.

FAQ

What is the maximum input voltage rating for the TPS7B8150DRVR?

The TPS7B8150DRVR has an absolute maximum input voltage of 45 V for transient events lasting up to 200 ms, and a continuous operating range of 3 V to 40 V. Exceeding 45 V risks permanent damage. This 45-V rating allows direct use in 24-V automotive or industrial systems with inductive switching noise, without external TVS diodes. The TPS7B8150DRVR's internal circuitry is hardened to withstand such transients while maintaining regulation.

Does the TPS7B8150DRVR require an external output capacitor, and what are the limits?

Yes, the TPS7B8150DRVR requires an external output capacitor for stability, with a specified range of 1 µF to 200 µF and ESR between 0.001 Ω and 5 Ω. Ceramic capacitors with X5R or X7R dielectrics are recommended. Using values outside this range may cause instability or poor transient response. The TPS7B8150DRVR does not need series resistance or additional compensation networks - its internal design ensures stability across the full capacitor range.

How does the enable pin (EN) of the TPS7B8150DRVR operate, and what voltage levels activate it?

The EN pin of the TPS7B8150DRVR is a high-voltage-tolerant digital input: it activates regulation when driven above 2 V (V_IH) and disables the output when pulled below 0.7 V (V_IL). Input leakage is only 10 nA, making it compatible with weak-drive microcontroller GPIOs. The TPS7B8150DRVR remains fully functional across the full 2–40 V enable range - enabling self-bias configurations where EN is tied to IN.

What thermal protection features does the TPS7B8150DRVR include, and how do they behave?

The TPS7B8150DRVR incorporates thermal shutdown that trips at 175°C junction temperature, with 20°C hysteresis. When tripped, the output disables and remains off until the junction cools to 155°C, then automatically resumes regulation. This behavior prevents latch-up during overload and enables safe auto-recovery in intermittently stressed applications like motor driver auxiliary rails. The TPS7B8150DRVR's 6-pin WSON package relies on the exposed thermal pad soldered to GND for effective heat transfer.

Is the TPS7B8150DRVR pin-compatible with other members of the TPS7B81 family?

Yes, the TPS7B8150DRVR shares identical 6-pin WSON (DRV) package pinout and footprint with TPS7B8133DRVR (3.3-V version), enabling drop-in replacement when output voltage is the only difference. Both devices use the same IN, EN, GND×2, NC, and OUT pin assignments. However, the TPS7B8150DRVR is not pin-compatible with the 8-pin HVSSOP (DGN) variants - those require PCB redesign due to different pin count, spacing, and thermal pad layout.