Nisshinbo Micro Devices Inc. Voltage Regulators - Linear R1171S451B-E2-FE

The R1171S451B-E2-FE is a linear voltage regulator from Quarktwin Technology Ltd. designed to provide a fixed output voltage with a maximum output current of 1.5A. It operates within an input voltage range of 2.1V to 6.0V and offers output voltage options from 1.5V to 5.0V in 0.1V steps. The device features a low dropout voltage of approximately 0.09V at 300mA output, ensuring efficient performance in battery-powered applications. This regulator incorporates several protective features, including a built-in current limit circuit and thermal shutdown capabilities, enhancing reliability during operation. The typical supply current is 130µA, with a standby current of just 0.1µA, contributing to extended battery life. The R1171S451B-E2-FE is packaged in a high wattage HSOP-6J format, allowing for high-density mounting on circuit boards. Applications for this voltage regulator include local power sources for notebook PCs, portable appliances, cameras, and various battery-operated devices. The output voltage accuracy is rated at ±2.0%, with excellent line regulation of 0.05%/V, making it suitable for precise voltage regulation needs.