AME8827 Datasheet, PDF (9/16 Pages) Analog Microelectronics – Low Dropout 1A CMOS Regulator

AME
AME8827
Low Dropout 1A CMOS Regulator
n Detailed Description
The AME8827 is low-dropout; low quiescent current
linear regulator designed for motherboard, notebook and
LCD monitor applications. The output voltage range from
1.2V to 3.6V, and can drive 1A loading current.
Capacitor Selection and Regulator Stability
Use 1µF for input capacitor and 4.7µFor great for out-
put capacitor on the AME8827. Larger input capacitor
value and low ESR provide better supply noise rejection
and improve line transient response. To reduce output
noise and load transient response, use output capacitor
greater than 4.7µF.
Calculating the Maximum Output Power
The maximum output power of the AME8827 is limited
by the maximum power dissipation of the package. By
calculation the power dissipation of the package as a
function of the input voltage, output voltage and output
current, the maximum input voltage can be obtained. The
maximum power dissipation should not exceed the
package's maximum power rating.
P_MAX = ( V_IN.MAX - V_OUT ) x I_OUT
Where:
V_IN.MAX = maximum input voltage
P_MAX = maximum power dissipation of the package
Rev.A.02
9