* UTC proprietary frequency hopping technology for Improved EMI performance. * Power-saving mode for high light-load and standby efficiency * Dynamic peak current limiti.

as: battery charger, power adaptor, set-top box power supplies, ink jet printers, open-frame SMPS.
* FEATURES * UT.

The UC3863 is a high performance current mode PWM controller ideally suited for low standby power. The PWM switching frequency is programmable externally at normal operation. Low VDD startup current make the power reliable on startup design and a la.

UC3861

UC3862

UC3863A

UC3864

UC3865

UC3866

UC3867

UC3868

UC3869

UC3869A

UC3869H

UC3800

UC3803X