Product details


Output options Adjustable Output, Fixed Output Iout (Max) (A) 1 Vin (Max) (V) 6 Vin (Min) (V) 1.8 Vout (Max) (V) 5.5 Vout (Min) (V) 1.22 Fixed output options (V) 1.5, 1.6, 1.8, 2.5 Noise (uVrms) 150 Iq (Typ) (mA) 0.075 Thermal resistance θJA (°C/W) 23 Load capacitance (Min) (µF) 10 Rating Catalog Regulated outputs (#) 1 Features Enable, Power Good Accuracy (%) 2 PSRR @ 100 KHz (dB) 20 Dropout voltage (Vdo) (Typ) (mV) 170 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

SOT-223 (DCQ) 6 46 mm² 6.5 x 7.06 TO-263 (KTT) 5 155 mm² 10.16 x 15.24 open-in-new Find other Linear regulators (LDO)


  • 1-A Output Current
  • Available in 1.5-V, 1.6-V, 1.8-V, 2.5-V Fixed-Output
    and Adjustable Versions
    (1.2-V to 5.5-V)
  • Input Voltage Down to 1.8 V
  • Low 170-mV Dropout Voltage at 1 A (TPS72525)
  • Stable With Any Type/Value Output Capacitor
  • Integrated Supervisor (SVS) With 50-ms
    RESET Delay Time
  • Low 210-µA Ground Current at Full Load (TPS72525)
  • Less than 1-µA Standby Current
  • ±2% Output Voltage Tolerance Over Line, Load, and Temperature
    (-40°C to 125°C)
  • Integrated UVLO
  • Thermal and Overcurrent Protection
  • 5-Lead SOT223-5 or DDPAK and 8-Pin SOP (TPS72501 only)
    Surface Mount Package
    • PCI Cards
    • Modem Banks
    • Telecom Boards
    • DSP, FPGA, and Microprocessor Power Supplies
    • Portable, Battery-Powered Applications

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


The TPS725xx family of 1-A low-dropout (LDO) linear regulators has fixed voltage options available that are commonly used to power the latest DSPs, FPGAs, and microcontrollers. An adjustable option ranging from 1.22 V to 5.5 V is also available. The integrated supervisory circuitry provides an active low RESET signal when the output falls out of regulation. The no capacitor/any capacitor feature allows the customer to tailor output transient performance as needed. Therefore, compared to other regulators capable of providing the same output current, this family of regulators can provide a stand-alone power supply solution or a post regulator for a switch mode power supply.

These regulators are ideal for higher current applications. The family operates over a wide range of input voltages (1.8 V to 6 V) and has very low dropout (170 mV at 1-A).

Ground current is typically 210 µA at full load and drops to less than 80 µA at no load. Standby current is less than 1 µA.

Each regulator option is available in either a SOT223-5, D (TPS72501 only), or DDPAK package. With a low input voltage and properly heatsinked package, the regulator dissipates more power and achieves higher efficiencies than similar regulators requiring 2.5 V or more minimum input voltage and higher quiescent currents. These features make it a viable power supply solution for portable, battery-powered equipment.

Although an output capacitor is not required for stability, transient response and output noise are improved with a 10-µF output capacitor.

Unlike some regulators that have a minimum current requirement, the TPS725 family is stable with no output load current. The low noise capability of this family, coupled with its high current operation and ease of power dissipation, make it ideal for telecom boards, modem banks, and other noise-sensitive applications.

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

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Type Title Date
* Data sheet TPS725xx: Low Input Voltage, 1-A Low-Dropout Linear Regulators with Supervisor datasheet (Rev. E) Jun. 18, 2010
Application note LDO Noise Demystified (Rev. B) Aug. 18, 2020
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
Application note LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical article LDO basics: noise – part 1 Jun. 14, 2017
User guide DEM-SOT223LDO Demonstration Fixture Oct. 15, 2003
User guide DEM-TO263LDO Demonstration Fixture Oct. 15, 2003
User guide 1-Amp, Low Input Voltage, Low Dropout Linear Regulator EVM Aug. 01, 2002

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 Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs).  This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) package.

TPS72518 Evaluation Module
document-generic User guide

The TPS72518EVM is a tool to facilitate evaluation of the TPS725xx and TPS726xx families of devices. The TPS72518EVM consists of the SLVP207 PCB, one TPS72518 1.8-V, 1-A linear regulator in a TO-263 package, and supporting passive components. The SLVP207 PCB is designed to accommodate multiple (...)

Reference designs

Flyback, Linear Regulator for Medical Pack (5.75V @ 10mA)
PMP2187 — This design provides isolated 5V (x2), 3.3V, 2.5V and -5V outputs. All outputs are noise filtered using Low Drop Out (LDO) linear regulators for noise sensitive applications such as medical imaging and data acquisition.
Design files

CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTT) 5 View options
SOT-223 (DCQ) 6 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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