FSAR001 AC-DC Linear Regulator April 2012 FSAR001 AC-DC Linear Regulator Features Description FSAR001 is designed to replace capacitor-fed (cap High Output Voltage Accuracy: 2% dropper) non-isolated power supplies, offering better Output Voltage: 5V high-power conversion performance and high-energy efficiency than a cap dropper solution. The appliance Low Ground Current: < 2.0mA needs no inductor, uses few components, and offers Ultra-Fast Line and Load Transient Response lower cost. Hysteretic Thermal and Current-Limit Protections FSAR001 integrates a 600V high-power device, startup controller, voltage control circuit, synchronous circuit, Over-Voltage and Under-Voltage Protections low dropout regulator, over-temperature protector, over- Ultra-Low Power Dissipation with No Load voltage protector, under-voltage protector, and current- limit circuit onto a monolithic IC. Universal Input Range: 80~265V RMS No Inductor Required Low Components and Cost Applications Non-Isolation AC/DC Converter Home Appliance Ordering Information Part Operating Ambient Maximum Output Voltage Package Packing Method Number Temperature Range Load FSAR001BNY -40C to +105C 5V 35mA DIP-8 Tube 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FSAR001 Rev. 1.0.1 1 FSAR001 AC-DC Linear Regulator Application Diagram Figure 1. Typical Application Internal Block Diagram Figure 2. Functional Block Diagram 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FSAR001 Rev. 1.0.1 2