HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR
General Description
Features
Data Sheet AP2121
The AP2121 series are p...
HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR
General Description
Features
Data Sheet AP2121
The AP2121 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 and a chip-enable circuit (5-pin products only).
The AP2121 series feature high supply
voltage ripple rejection, low dropout
voltage, low noise, high output
voltage accuracy, and low current consumption which make them ideal for use in various battery-powered devices.
The AP2121 series have 1.2V, 1.3V, 1.5V, 1.8V, 2.5V, 2.8V, 2.85V, 3.0V, 3.2V and 3.3V versions.
The AP2121 are available in standard SOT-23-3, SOT23-5 and CSP-4 packages.
· Low Dropout
Voltage at IOUT=100mA: 150mV Typical (Except 1.2V, 1.3V and 1.5V Versions)
· Low Standby Current: 0.1μA Typical · Low Quiescent Current: 25μA Typical · High Ripple Rejection: 70dB Typical （f=1kHz） · Output Current: More Than 200mA (300mA
Limit) · Extremely Low Noise: 30μVrms (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 E...
