描述 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.

特性 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