The LD7750BGR is a Switching Controller designed and manufactured by Leadtrend. It is available in a SOP-7 package and is RoHS compliant. This device is designed to provide a continuous, constant current to DC motor and load, and provides advanced control features including zener clamp voltage and constant frequency PWM control. It has a wide input voltage range from 4.5V to 40V, with adjustable current up to ±7A. It features low current consumption, high frequency compensation, and over-current protection. It also has a thermal shutdown and over-voltage protection to protect against thermal runaway. With its wide range of features, the LD7750BGR is a great choice for controlling DC motors and loads.