YB1220

Dual Channel 200mA LDO Regulator Description The YB1220 family is a dual-channel LDO product consisting of 2 independent low noise, low dropout (LDO), linear regulators especially designed for battery-powered equipment and portable device. The regulator achieves a low 300 mV dropout at 200mA 3.3V output and good PSRR of near 50dB at 1K~10KHz frequency. The YB1220 consumes only 80uA supply current with both regulators enabled and supports different output voltages of full range from 1.2 to 3.6V (pre-set). The YB1220 is smartly designed to fit in three different pin allocations of SOT23-6 package which offers higher flexibility to users’ PCB layout. Other features of YB1220 include a thermal shutdown circuit and an output short-circuit protection. YB1220 Features High Accuracy Output Voltage : + 2% Wide Output Voltage Range : 1.2~3.6V Each Channel Typical Current : 200mA Max. Allowable 300mA Each Channel Low Quiescent Current : ~80uA Dual Enable Pins Control 300mV Dropout at 200mA 3.3V Output Stable with 1.0uF Ceramic Capacitor Thermal Protection Shutdown Output Short-Circuit Current Limit Built-In Internal Soft-Start Green Package (RoHS) Available Applications Cellular Phone White LED Backlighting PDA, Notebook, PC Digital Camera Portable Application Wireless LAN Battery-Powered Equipment Typical Application Circuitry YB1220 MRev.1.1 www.yobon.com.tw 1 Dual Channel 200mA LDO Regulator Pin Configuration YB1220 Pin Description Tab...