1 Features

• Input voltage range: 3.0V to 40V (42V max)

• Available output voltage options:

– Fixed: 1.8V to 12V

– Adjustable: 1.2V to 38V

• Output current: Up to 300mA

• ±1.2% accuracy across line, load and temperature

• Ultra-low IQ: 2.8μA at IOUT = 0mA

• Stable with 4.7μF or larger ceramic capacitors

– ESR range: 0Ω to 1Ω

• Dropout voltage: 900mV (typical) at 300mA

• High PSRR:

– 70dB at 1kHz

– 45dB at 100kHz

• Over-current, over-power and over-temperature

limiting

• Package:

– 5-pin SOT-23 (DBV) [RθJA: 190.9°C/W]

– 6-pin WSON (DRV) [RθJA: 90.2°C/W]

• Operating junction temperature: –40°C to +125°C

2 Applications

• Appliances

• Home and building automation

• Retail automation and payment

• Grid infrastructure

• Medical applications

• Lighting applications

3 Description

The TPS7E82 low-dropout (LDO) linear voltage

regulator is a low quiescent current device and

supports wide input voltage range from 3V to 40V.

The wide output range is from 1.2V to 38V for the

adjustable configuration, 1.8V to 12V for the fixed

configuration, and a load current of up to 300mA is

supported. With only a 2.8μA quiescent current at noload,

the device is designed to power microcontrollers

and other low-power loads for battery-powered

applications.

The TPS7E82 supports very tight DC accuracy of

±1.2% over line, load and temperature range. The

device responds quickly to line and load transients.

The low quiescent current (2.8μA typically) during

regulation and controlled IQ even in dropout operation

(12μA typically in no-load dropout) makes this device

designed for battery-powered or always-on systems

that require very little idle-state power dissipation.

The TPS7E82 supports a low dropout of typically

900mV at 300mA of load current. The device has

built-in protection mechanism for over-current, overtemperature

and over-power delivery for reliable

operation of the LDO. The TPS7E82 is stable with an

output capacitor range of 4.7μF to 100μF.