Nisshinbo Micro Devices Inc. Voltage Regulators - Linear, Low Drop Out (LDO) Regulators R1173S331B-E2-FE

The R1173S331B-E2-FE is a CMOS-based linear voltage regulator from the R1173x series, designed to provide a stable output voltage of 3.3V with a maximum output current of 1A. It features a low dropout voltage of approximately 0.32V at 1.5V output and 1A load, making it suitable for applications requiring efficient power management with minimal voltage loss. The input voltage range is from 1.4V to 6.0V, allowing flexibility in various power supply scenarios. This regulator includes built-in protection features such as thermal shutdown and current limit circuits, enhancing reliability in demanding applications. The device operates with a typical supply current of 60µA and a standby current as low as 0.1µA, contributing to energy efficiency. The output voltage accuracy is ±2.0%, with excellent load regulation of -3mV at 1A, ensuring stable performance under varying load conditions. The R1173S331B-E2-FE is packaged in a compact HSOP-6J format, facilitating high-density mounting on PCBs. It is suitable for local power supply applications in portable devices, communication equipment, and home appliances.