Nisshinbo Micro Devices Inc. Voltage Regulators - Linear RP131S081B-E2-FE

The RP131S081B-E2-FE is a linear voltage regulator from Quarktwin Technology Ltd. designed to provide a fixed output voltage with a maximum output current of 1A. It operates within an input voltage range of 1.6V to 6.5V and offers an output voltage that can be set from 0.8V to 5.5V in 0.1V increments. The device features a low dropout voltage of approximately 0.5V at 2.8V output and 1A load, making it suitable for applications requiring efficient voltage regulation. This regulator includes several built-in protection features such as thermal shutdown, current limit, and fold-back protection, ensuring safe operation under various conditions. The typical supply current is 65µA, with a standby current of only 0.15µA, which is beneficial for battery-powered applications. The device also provides good ripple rejection of 70dB at 1kHz, enhancing output stability. The RP131S081B-E2-FE is available in multiple package options, including HSOP-6J, which supports high-density mounting. It is recommended to use ceramic capacitors of at least 2.2µF for output voltages up to 3.6V and 4.7µF for higher voltages to ensure optimal performance. This voltage regulator is suitable for a variety of applications, including portable communication devices, cameras, and notebook PCs.