LD5520 Datasheet (Leadtrend) - Quasi-Resonant PWM Controller

LD5520, Quasi-Resonant PWM Controller

The LD5520 is built with several functions, protection and EMI-improved solution in a tiny package.

It takes less components counts or circuit space, especially ideal for those total solutions of low cost.

The implemented functions include low startup current, green-mode power-saving operation, lead

LD5520 Features

* more protections like OLP (Over Load Protection), FB pin OVP (FB pin Over Voltage Protection) and OVP (Over Voltage Protection) to prevent circuit damage occurred under abnormal conditions. Furthermore, the adjustable frequency swapping function is to reduce the noise level and thus helps the power