AP2122

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR General Description Features Data Sheet AP2122 The AP2122 series are positive voltage regulator ICs fabricated by CMOS process. Each of these ICs con- · Low Dropout Voltage at IOUT=100mA: 150mV Typical (Except 1.5V Version) sists of a voltage reference, an error amplifier, a resistor network for setting output voltage, a current limit circuit for current protection and a chip enable circuit . · · · Low Standby Current: 0.1µA Typical Low Quiescent Current: 25µA Typical High Ripple Rejection: 70dB Typical（f=10kHz） The AP2122 series feature high ripple rejection, low · Maximum Output Current: More Than 150mA dropout voltage, low noise, high output voltage accu- (300mA Limit) racy, and low current consumption which make them · Extremely Low Noise: 30µVrms (10Hz to ideal for use in various battery-powered devices. 100kHz) · Excellent Line Regulation: 4mV Typical The AP2122 series have 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, · Excellent Load Regulation: 12mV Typical 3.2V and 3.3V versions. · High Output Voltage Accuracy: ±2% · Excellent Line and Load Transient Response The AP2122 are available in standard SOT-23-5 package. · Compatible with Low ESR Ceramic Capacitor (as Low as 1µF) Applications · Mobile Phones, Cordless Phones · MP3/4 · Portable Electronic Devices · Cameras, Video Recorders · Sub-board Power Supplies for Telecom Equip- ment · Battery Powered Equipment May. 2010 Rev. 1. 5 SOT-23-5 Figure 1. Package Type ...