RC1616

www.fairchildsemi.com RC1616 0.5A Adjustable/Fixed Low Dropout Linear Regulator Features Low dropout voltage Load regulation: 0.05% typical Current limit On-chip thermal limiting Standard SOT-223 and TO-252 packages Three-terminal adjustable or fixed 2.5V, 3.3V or 5V Description The RC1616 and RC1616-2.5, -3.3 and -5 are low dropout three-terminal regulators with 0.5A output current capability. These devices have been optimized for low voltage where transient response and minimum input voltage are critical. The 5V version is designed also to be used in USB Hub and Motherboard applications. On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperatures. Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the bias current of the RC1616 flows into the load, increasing efficiency. The RC1616 series regulators are available in the industrystandard SOT-223 and TO-252 power packages. Applications USB Controlled Power Supply High efficiency linear regulators for Mixed Voltage Logic, ASIC, FPGA based systems Post regulators for switching supplies Battery chargers 5V to 3.3V, or 2.5V, 1.8V, 1.5V linear regulators Motherboard clock supplies SDRAM Module supplies Typical Applications RC1616 VIN = 3.3V 10µF + VIN ADJ VOUT 124Ω + 1.5V at 0.5A 22µF 24.9Ω RC1616-3.3 VIN = 5V 10µF + VIN GND VOUT + 3.3V at 0.5A 22µF REV. 1.0.8 5...