Nisshinbo Micro Devices Inc. Voltage Regulators - DC DC Switching Regulators R1210N222D-TR-FE

The R1210N222D-TR-FE is a CMOS-based PWM step-up DC/DC converter controller designed for high efficiency and low supply current applications. It requires only four external components: an inductor, a diode, a transistor, and a capacitor, making it simple to implement. The device features a low standby current of a maximum of 0.5µA and offers a stepwise output voltage setting ranging from 2.2V to 6.0V with an accuracy of ±2.5%. The oscillator frequency for this part is set at 180kHz, which is suitable for various applications, including battery-powered devices and portable communication equipment. The small SOT-23-5 package allows for high-density mounting on circuit boards. Additionally, the built-in chip enable circuit facilitates ultra-low quiescent current operation, enhancing its suitability for energy-sensitive applications. The R1210N222D-TR-FE is capable of detecting drastic changes in output voltage, improving load transient response.