1 Features

1• 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

2 Applications

• Home and building automation

• Multicell power banks

• Smart grid and metering

• Portable power tools

• Motor drives

• White goods

• Portable appliances

3 Description

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.