UC3838 Datasheet (UTC) - PWM CONTROLLER

UC3838, PWM CONTROLLER

The UTC UC3838 provides a CCM switching mixed mode operation for better efficiency performance.

The operation mode stays at CCM at heavy load, and switch to power-saving mode at light load.

The UTC UC3838 is a high performance current mode PWM controller ideally suited for low standby power.

Low VCC

UC3838 Features

* Proprietary frequency hopping for Improved EMI performance

* Cycle-by-cycle current limiting

* CCM Power-saving mode Switching Operation

* Fixed switch frequency 65kHz TYP.

* Dynamic peak current limiting for constant output power

* Built-in synchronized slope compensation