General Description
The AP2120 series are positive voltage regulator ICs fabricated by CMOS process. Each of these ICs consists of a voltage reference, an error amplifier, a resistor network for setting output voltage, a current limit circuit for current protection.
   
Features
• Low Dropout Voltage at IOUT=100mA: 200mV
    Typical (Except 1.2V, 1.3V and 1.5V Versions)
• Low Quiescent Current: 25µA Typical
• High Ripple Rejection: 65dB Typical （ f=1kHz）
• Output Current: More Than 150mA (250mA
    Limit)
• Extremely Low Noise: 15µVrms@VOUT=1.2V,
    1.3V, 1.5V (10Hz to 100kHz)
• Excellent Line Regulation: 4mV Typical
• Excellent Load Regulation: 12mV Typical
• High Output Voltage Accuracy: ±2%
• Excellent Line Transient Response and Load
    Transient Response
• Compatible with Low ESR Ceramic Capacitor (as
    Low as 1µF)
   
Applications
• Mobile Phones, Cordless Phones
• Wireless Communication Equipment
• Portable Games
• Cameras, Video Recorders
• Sub-board Power Supplies for Telecom Equipment
• Battery Powered Equipment