AME8845_11 Datasheet, PDF (1/19 Pages) Analog Microelectronics – 3A CMOS LDO

AME
AME8845
n General Description
The AME8845 family of linear regulators feature low
quiescent current (300µA typ.) with low dropout voltage,
making them ideal for battery applications. It is available
in TO-252, SOT-223, TO-263 and TO-220 packages. The
space-efficient TO-252, SOT-223 packages are attractive
for "Pocket" and "Hand Held" applications.
Output voltages are set at the factory and trimmed to
1.5% accuracy.
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under the
"Worst" operating conditions.
The AME8845 is stable with an output capacitance of
2.2µF or greater.
3A CMOS LDO
n Functional Block Diagram
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
R1
-
AMP
+
R2
Vref
GND
n Features
l Very Low Dropout Voltage
l Guaranteed 3A Output
l Accurate to within 1.5%
l 300µA Quiescent Current Typically
l Over-Temperature Shutdown
l Current Limiting
l Short Circuit Current Fold-back
l Low Temperature Coefficient
l All AME’ s Lead Free Products Meet RoHS
Stangdards
n Typical Application
VIN
0.1µF
IN
AME 8845
GND
OUT
VOUT
2.2µ F
n Applications
l Instrumentation
l Portable Electronics
l Wireless Devices
l PC Peripherals
l Battery Powered Widgets
Rev.C.03
1