Data
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300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR
AP2127
General Description
The AP2127 Series are positive voltage regulator ICs
fabricated by CMOS process.
The AP2127 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.
AP2127 has 1.0V, 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V,
3.3V, 4.2V, 4.75V, 5.2V fixed voltage versions and
0.8V to 5.5V adjustable voltage versions.
AP2127 series are available in SOT-23-5 Package.
Features
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Wide Operating Voltage: 2.5V to 6V
High Output Voltage Accuracy:
±2%
High Ripple Rejection:
68dB@ f=1kHz, 54dB@ f=10kHz
Low Standby Current: 0.1µA
Low Dropout Voltage: 170mV@300mA for
V
OUT
=3.3V, 140mV@300mA for V
OUT
=5.2V
Low Quiescent Current: 60µA Typical
Low Output Noise: 60µVrms@V
OUT
=0.8V
Short Current Limit: 50mA
Over Temperature Protection
Compatible with Low ESR Ceramic Capacitor:
1µF for C
IN
and C
OUT
Excellent Line/Load Regulation
Soft Start Time: 50µs
Auto Discharge Resistance: R
DS(ON)
=60Ω
Applications
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Datacom
Notebook Computers
Mother Board
SOT-23-5
Figure 1. Package Type of AP2127
Oct. 2009 Rev. 1.3
1
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
