AS9103/A
Low Noise, Low Voltage, High PSRR
Low-Dropout 300mA Linear Regulator
General Description
The AS9103/A is a CMOS low dropout, low noise,
high PSRR, low quiescent current positive linear
regulator with input voltage down to about 1.20V. The
AS9103/A can deliver a guaranteed 300mA load
current with a low dropout voltage at 250mV that
optimized for battery-powered systems or portable
wireless devices such as mobile phones. The
shutdown function can provide remote control for the
external signal to decide the on/off state of AS9103/A
that consumes less than 0.1uA during shutdown
mode
Features
Output Current Up to 300mA
Low Voltage V
IN
Range: 1.20V to 5.5V
Very Low Input Voltage at 1.20V (Min.)
Very Low Quiescent Current at 20uA
Low Dropout voltage of 250mV at 300mA
Output Voltage Accuracy at ±2.0%
AS9103A Accuracy at ±1.0%
AS9103 Accuracy at ±2.0%
PSRR 75dB at 1.0KHz
Needs Only 1.0uF Capacitor for Stability
Current Limit Protection
Current Fold-back Protection
Less than 1uA Shutdown Current
Without EMI and Switch Noise
Low
ESR Ceramic Capacitor for Output
Stability
RoHS and Green Compliant
SOT23-3L, DFN1010-4L and SOT23-5L
Packages
-40℃ to +125 ℃ Temperature Range
Applications
PDAs and Digital Camera
White LED Biasing
Mobil Handsets
Tablet PCs and Laptops/Netbooks
Camcorder Video Light (Movie Light)
