General Description
The AS9145 is a low dropout, low noise, low
power consumption, low quiescent current positive
linear regulator with wide input voltage range. The
AS9145 can deliver a guaranteed 500mA load
current with a low dropout voltage. Quiescent current
of only 2.0uA makes these devices ideal for powering
the battery-powered, always-on systems that require
very little idle-state power dissipation to a longer
service life. There is an option of shutdown function
by selecting the parts with the EN pin and pulling it
low. The off state of AS9145 that consumes less than
0.1uA during shutdown mode

Features
 Output Current Up to 500mA
 Wide Voltage VIN Range: 2.5V to 40V
 Very Low Quiescent Current at 2.0uA
 Low Dropout voltage of 0.35V at 100mA/VOUT=5V
 Output Voltage Accuracy at ± 2.0%
 Support Fixed Output Voltage: 1.8V, 3.3V, 5V,
12V.
 Adjustable Output Votage Available by Specific
Application
 PSRR 70dB at 1KHz
 Needs Only 1.0uF Capacitor for Stability
 Current Limit Protection
 Without EMI and Switch Noise
 Stable with Ceramic Capacitor or Tantalum
Capacitor
 RoHS and Green Compliant
 SOT23-3L, SOT23-5L, DFN2020-6L, SOT223
and SOT89-3L Packages
 -40℃ to +85 ℃ Temperature Range

Applications
 Portable, Battery Powered Equipment
 Low Power Microcontrollers
 Laptop, Palmtops & PDAs
 Audio/Video Equipment
 Car Navigation Systems
 Industrial Control
 Weighting Scales
 Meters/Home Automation