Features

• Wide Input Voltage Range: 3.6 V to 42 V

• Fixed Output: 3 V, 3.3 V, and 5 V

• ±1% Output Accuracy Under Room Temperature

• Ultra-Low Quiescent Current: 2 µA

• Maximum Output Current: 180 mA

• Low Dropout Voltage: 200 mV at 50 mA

• High PSRR: 73 dB at 100 Hz

• Current Limit and Thermal Protection

• Stable with 2.2-μF to 22-μF Low ESR Ceramic

Capacitor

• Soft Start Limits Input Current Surge During Enable

• Thermal Shutdown Protection

• Junction Temperature Range: −40°C to +125°C

• Packages: SOT89-3, SOT23-5, SOT23-3, SOT223-3

Applications

• Handheld Devices with Battery Power Supply

• POS and Power Tools

• Meters and Smoke Detector

• Industrial Control

• Wireless and IoT Modules

Description

The TPL820 is a series of high-performance and lowdropout linear regulators. The TPL820 series supports a

maximum 42-V input voltage and a 180-mA output current

with low quiescent current and high PSRR. The TPL820

series is stable with a 2.2-μF to 22-μF output capacitor,

and a 4.7-μF ceramic capacitor is recommended.

The TPL820 series has a high PSRR with 73 dB at 100

Hz. This feature makes the TPL820 series very suitable

for power-sensitive applications with high noise from the

previous stage power supply. A 2-μA ultra-low quiescent

current makes the TPL820 series ideal for portable devices

with a battery power supply. Current-limit and thermal

overload protection circuits improve reliability under heavy

load conditions.

The TPL820 series provides fixed output voltage options

from 3.0 V to 5 V with ±2% voltage accuracy over

operating conditions. The TPL820 series is guaranteed

over the junction temperature range from −40°C to

+125°C.