Nisshinbo Micro Devices Inc. Voltage Regulators - Linear, Low Drop Out (LDO) Regulators R1172N321D-TR-FE

The R1172N321D-TR-FE is a CMOS-based linear voltage regulator IC from the R1172x series, designed to provide a stable output voltage with a maximum output current of 1A. It operates within an input voltage range of 1.4V to 6.0V and can be configured to output voltages from 0.8V to 5.0V in 0.1V increments. The device features a low dropout voltage, typically 0.32V at 1.5V output and 1A load, making it suitable for applications requiring efficient power management with minimal voltage loss. This regulator includes several built-in protection features such as thermal shutdown, current limit, and an inrush current limit circuit. It also supports a chip enable function for low power consumption in standby mode, with a typical supply current of 60OºA and a standby current of just 0.1OºA. The output voltage accuracy is ¬±2.0%, and it exhibits good ripple rejection of approximately 70dB at 2.8V output. The R1172N321D-TR-FE is available in a compact SOT-23-5 package, allowing for high-density mounting on PCBs. It is suitable for various applications, including local power sources for portable devices, cameras, and home appliances.