Product details


Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.3 Vin (Max) (V) 18 Vin (Min) (V) 2.4 Vout (Max) (V) 17.64 Vout (Min) (V) 1.24 Fixed output options (V) 1.25, 1.8, 2.5, 3.3, 5 Noise (uVrms) 300 Iq (Typ) (mA) 0.002 Thermal resistance θJA (°C/W) 73.3 Load capacitance (Min) (µF) 1 Rating Catalog Regulated outputs (#) 1 Features Enable, Power Good, Soft Start Accuracy (%) 1 PSRR @ 100 KHz (dB) 22 Dropout voltage (Vdo) (Typ) (mV) 210 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Linear regulators (LDO)


  • Ultra-low IQ: 2 µA
  • Input voltage: 2.4 V to 18 V
  • Output voltage options available:
    • Fixed: 1.25 V to 5.5 V
    • Adjustable: 1.24 V to 17.66 V
  • 1% accuracy over temperature
  • Low dropout: 340 mV (max) at 300 mA
  • Open-drain, power-good output
  • Thermal shutdown and overcurrent protection
  • Active overshoot pulldown
  • Operating junction temperature: –40°C to +125°C
  • Stable with 1-µF output capacitors
  • Package: 6-pin WSON
open-in-new Find other Linear regulators (LDO)


The TPS7A25 low-dropout (LDO) linear voltage regulator introduces a combination of a 2.4-V to 18-V input voltage range with very-low quiescent current (IQ). These features help modern appliances meet increasingly stringent energy requirements, and help extend battery life in portable-power solutions.

The TPS7A25 is available in both fixed and adjustable versions. For more flexibility or higher output voltages, the adjustable version uses feedback resistors to set the output voltage from 1.24 V to 17.64 V. Both versions have a 1% output regulation accuracy that provides precision regulation for most microcontroller (MCU) references.

The TPS7A25 LDO operates more efficiently than standard linear regulators because the maximum dropout voltage is less than 340 mV at 300 mA of current. This maximum dropout voltage allows for 92.5% efficiency from a 5.4-V input voltage (VIN) to a 5.0-V output voltage (VOUT).

The power-good (PG) indicator can be used to either hold an MCU in reset until power is good, or for sequencing. The PG pin is an open-drain output; therefore, the pin is easily level-shifted for monitoring by a rail other than VOUT. The built-in current limit and thermal shutdown help protect the regulator in the event of a load short or fault.

For a higher output current alternative, consider the TPS7A26.

open-in-new Find other Linear regulators (LDO)
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Technical documentation

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Type Title Date
* Data sheet TPS7A25 300-mA, 18-V, Ultra-Low IQ, Low-Dropout Linear Voltage Regulator With Power-Good datasheet (Rev. B) Aug. 05, 2019
White paper Understanding the Foundations of Quiescent Current in Linear Power Systems Feb. 18, 2021
User guide TPS7A26EVM-021 Evaluation Module User's Guide Dec. 07, 2018
Technical article LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical article LDO Basics: Preventing reverse current Jul. 25, 2018
Technical article LDO basics: introduction to quiescent current Jun. 20, 2018
Technical article LDO basics: noise – part 1 Jun. 14, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The TPS7A26 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A26 device, which is a 500-mA low-dropout (LDO) linear regulator.

TPS7A26EVM-021 is configured to be a reference design for engineering applications requiring current to a (...)

  • Supports input voltages from 2.4 V to 18 V
  • Supports output voltages from 1.24 V to 17.7 V
  • Low quiescent current (IQ): 2.5 µA (typ)
  • Internal soft start to limit inrush current
  • Power good

Design tools & simulation

SBVM941.ZIP (55 KB) - PSpice Model

Reference designs

Back-up battery power reference design for automotive emergency calling applications
TIDA-050031 — This back-up power reference design is for automotive E-Call application. It uses one cell LiFePO4 as the backup battery. The minimum backup battery voltage can be down to 2 V with boost converter TPS61088-Q1; the maximum output power can be 8 V/1.7A. This reference design is low-cost, high (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
WSON (DRV) 6 View options

Ordering & quality

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