Summary
Primary-Side-Regulation PWM Integrated Power MOSFET
Description
This highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters. The proprietary topology enables most simplified circuit design especially for battery charger applications. A low-cost, smaller, and lighter charger results when compared to a conventional design or a linear transformer. The startup current is only 10μA, which allows large startup resistance for further power saving.
Source title
FSEZ1216B Datasheet(PDF) - Fairchild Semiconductor