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 Rating Catalog Load capacitance (Min) (µF) 1 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
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 Rating Catalog Load capacitance (Min) (µF) 1 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
WSON (DRV) 6 4 mm² 2 x 2
  • 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
  • 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

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.

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.

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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) 05 Aug 2019
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
White paper Understanding the Foundations of Quiescent Current in Linear Power Systems 18 Feb 2021
User guide TPS7A26EVM-021 Evaluation Module User's Guide 07 Dec 2018

Design & development

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

Evaluation board

TPS7A26EVM-021 — TPS7A26 500-mA 18-V ultra-low-IQ LDO linear voltage regulator with power good evaluation module

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 (...)

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Simulation model

TPS7A2501 Unencrypted PSPICE TRANSIENT MODEL

SBVM941.ZIP (55 KB) - PSpice Model
Reference designs

TIDA-050031 — Back-up battery power reference design for automotive emergency calling applications

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 (...)
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WSON (DRV) 6 View options

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