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Linear & low-dropout (LDO) regulators

TPS7A26

ACTIVE

500-mA, 18-V, ultra-low-IQ, high-accuracy, adjustable low-dropout voltage regulator with power good

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Data sheet

TPS7A26

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.5 Vin (max) (V) 18 Vin (min) (V) 2.4 Vout (max) (V) 17.41 Vout (min) (V) 1.24 Fixed output options (V) 1.25, 1.8, 2.5, 3.3, 5 Noise (µVrms) 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 at 100 KHz (dB) 22 Dropout voltage (Vdo) (typ) (mV) 355 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.5 Vin (max) (V) 18 Vin (min) (V) 2.4 Vout (max) (V) 17.41 Vout (min) (V) 1.24 Fixed output options (V) 1.25, 1.8, 2.5, 3.3, 5 Noise (µVrms) 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 at 100 KHz (dB) 22 Dropout voltage (Vdo) (typ) (mV) 355 Operating temperature range (°C) -40 to 125
WSON (DRV) 6 4 mm² 2 x 2
  • Ultra-low IQ: 2.0 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 17.4 V
  • 1% accuracy over temperature
  • Low dropout: 590 mV (max) at 500 mA
  • Open-drain, power-good output
  • Active overshoot pulldown protection
  • Thermal shutdown and overcurrent protection
  • Operating junction temperature: –40°C to +125°C
  • Stable with 1-µF output capacitors
  • Package: 6-pin WSON
  • Ultra-low IQ: 2.0 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 17.4 V
  • 1% accuracy over temperature
  • Low dropout: 590 mV (max) at 500 mA
  • Open-drain, power-good output
  • Active overshoot pulldown protection
  • Thermal shutdown and overcurrent protection
  • Operating junction temperature: –40°C to +125°C
  • Stable with 1-µF output capacitors
  • Package: 6-pin WSON

The TPS7A26 low-dropout (LDO) linear voltage regulator supports 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 TPS7A26 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 17.4 V. Both versions have 1% output regulation accuracy that provides precision regulation for microcontroller (MCU) references.

With the open-drain, power-good (PG) output the device can provide a reset to an MCU or be wire-ORed and level-shifted with other open-drain PGs to provide a system-wide PG or reset.

The TPS7A26 LDO operates more efficiently than standard linear regulators because the maximum dropout voltage is less than 590 mV at 500 mA of current. This maximum dropout voltage allows for 87.7% efficiency from a 5.7-V input voltage (VIN) to
5.0-V output voltage (VOUT).

For lower power applications, consider the TPS7A25.

 

 

The TPS7A26 low-dropout (LDO) linear voltage regulator supports 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 TPS7A26 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 17.4 V. Both versions have 1% output regulation accuracy that provides precision regulation for microcontroller (MCU) references.

With the open-drain, power-good (PG) output the device can provide a reset to an MCU or be wire-ORed and level-shifted with other open-drain PGs to provide a system-wide PG or reset.

The TPS7A26 LDO operates more efficiently than standard linear regulators because the maximum dropout voltage is less than 590 mV at 500 mA of current. This maximum dropout voltage allows for 87.7% efficiency from a 5.7-V input voltage (VIN) to
5.0-V output voltage (VOUT).

For lower power applications, consider the TPS7A25.

 

 
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Technical documentation

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* Data sheet TPS7A26 500-mA, 18-V, Ultra-Low IQ, Low-Dropout Linear Voltage Regulator With Power-Good datasheet (Rev. B) PDF | HTML 11 Oct 2019
White paper Understanding the Foundations of Quiescent Current in Linear Power Systems 18 Feb 2021
EVM User's 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 (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS7A2601 Unencrypted PSPICE TRANSIENT MODEL

SBVM940.ZIP (45 KB) - PSpice Model
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Reference designs

TIDA-010046 — EMC-compliant 10/100-Mbps Ethernet PHY reference design with IEEE802.3at Type-1 (≤ 12.95 W) PoE-PD

This reference design is optimized for 10 to 100 Mbps using the low-power Ethernet physical layer (PHY) DP83825 supporting 150-m reach over CAT5e cable which is beyond the standard Ethernet distance limitation of 100 m (328 feet). This design has power delivery over Ethernet cable along with data (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
WSON (DRV) 6 View options
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