The AME8821 family of positive, linear regulators feature
low quiescent current (17mA typ.) with low dropout
voltage, making them ideal for battery applications. The
space-saving SOT-25/TSOT-25 packages are attractive
for “Pocket” and “Hand Held”applications.
These rugged devices have both Thermal Shutdown,
and Current Limitation to prevent device failure under the
“Worst” operating conditions. In application requires a
low noise regulated supply. The AME8821 family uses
the SR pin to program the output voltage’s slew rate to
control the in-rush current. This is specifically used in
the USB application where large load capacitance is
present at start-up.
The AME8821 also features a logic-enabled sleep mode
to shutdown the regulator, reducing quiescent current to
1mA typical at TA= 25oC.
The AME8821 is stable with an output capacitance of
4.7mF or larger.