Datasheet Summary
Machine Translated by Google
Non-isolated step-down switching power supply constant voltage control driver
Overview
Features
LP2178 is a high-efficiency and high-precision non-isolated step-down switching power supply constant voltage control driver chip. It is suitable for non-isolated Buck and Buckboost topologies with a full range of input voltages from 85VAC to 265VAC, and is especially suitable for driving power supplies such as small appliances and white appliances.
LP2178 integrates high-voltage power tubes and adopts constant voltage control mode. The system can work in CCM and DCM modes. It adopts a unique PFM control method to improve audio characteristics.
Built-in...