Diodes AP2126 - Manual

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126
1
Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited
Data Sheet
General Description
The AP2126 series are positive voltage regulator ICs
fabricated by CMOS process.
The AP2126 series have features of low dropout
voltage, low noise, high output voltage accuracy, and
low current consumption which
make them ideal for
use in various battery-powered devices.
AP2126 is available in 1.25V to 5.5V adjustable
voltage versions.
AP2126 series are available in SOT-23-5 Package.
Features
· Wide Operating Voltage: 3.0V to 6V
· High Output Voltage Accuracy: ±2%
· High Ripple Rejection:
68dB@ f=1kHz, 54dB@ f=10kHz
· Low Standby Current: 0.1 μA
· Low Dropout Voltage: 170mV@300mA for
V
OUT
=3.3V, 140mV@300mA for V
OUT
=5.2V
· Low Quiescent Current: 60 μA Typical
· Low Output Noise: 80 μVrms@V
OUT
=1.25V
· Short Current Limit: 50mA
· Over Temperature Protection
· Compatible with Low ESR Ceramic Capacitor:
1
μF for C
IN
and C
OUT
· Excellent Line/Load Regulation
· Soft Start Time: 50 μs
· Auto Discharge Resistance: R
DS(ON)
=60 Ω
Applications
· Datacom
· Notebook Computers
· Mother Board
Figure 1. Package Type of AP2126
SOT-23-5