XRP6657IHBTR-F – EXAR

The XRP6657IHBTR-F is a synchronous step-down (buck) DC-DC regulator integrated circuit manufactured by EXAR. It features an adjustable output voltage, regulated via an external resistor divider network, and delivers a continuous output current of up to 1.5A. The device operates with a wide input voltage range, typically from 4.5V to 18V, making it suitable for various power supply applications. Integrated protection features include over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown. The XRP6657IHBTR-F is packaged in a small 6-pin DFN (Dual Flat No-Lead) package with a thermal pad to facilitate efficient heat dissipation, allowing for operation in thermally constrained environments. Its high switching frequency minimizes the size of external components, such as inductors and capacitors, contributing to a compact overall solution size.