AS9142
Micro-Power consumption
40V, 250mA, Low-Dropout
Voltage Linear Regulator
General Description
The AS9142 is a CMOS low dropout, low noise,
low power consumption, low quiescent current
positive linear regulator with wide input voltage
range. The AS9142 can deliver a guaranteed 250mA
load current with a low dropout voltage. Quiescent
current of only 1.5uA 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 AS9142 that consumes
less than 0.1uA during shutdown mode.
Features
Output Current Up to 250mA
Wide Voltage V
IN
Range: 2.7V to 40V
Very Low Quiescent Current at 1.5uA
Low Dropout voltage of 1.0V at 250mA/V
IN
= V
OUT
+1V
Output Voltage Accuracy at ±2.0%
Support Fixed Output Voltage: 1.8V, 3.0V, 3.3V,
5V.
PSRR 70dB at 100Hz
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, 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
