The LP3669E is a switching controller SOP-8L RoHS (Lead-free, Halogen-free, and Compliant with the Restriction of Hazardous Substances Directive) manufactured by Chip Hope. It is a single-phase synchronous buck controller for voltage regulators and DC/DC converters featuring current and temperature protection, an adjustable 550kHz oscillator frequency, an adjustable peak current sense signal, and output voltage monitoring. The integrated MOSFET driver and dedicated logic achieve high efficiency and fast transient response for a variety of step-down applications. This controller is suitable for a wide range of input voltage ranges and provides a typical output current of up to 5 A. It is designed for high switching speeds and requires few components, reducing the total system cost. It is available in an SOP-8L RoHS package, making it suitable for a wide variety of applications.