AME, Inc.
AME8826
1.55A CMOS LDO
!
General Description
The AME8826 family of positive, linear regulators fea-
ture low quiescent current (45µA typ.) with low dropout
voltage, making them ideal for battery 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" of operating conditions.
In applications requiring a low noise, regulated supply,
place a 1000pF capacitor between Bypass and Ground.
The AME8826 is stable with an output capacitance of
4.7µF or greater.
!
Functional Block Diagram
(Fixed Versions)
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
R1
BYPASS
AMP
EN
1.242V
R2
GND
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Features
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Very Low Dropout Voltage
Guaranteed 1.55A Output
Accurate to within 1.5%
45µA Quiescent Current Typically
Over-Temperature Shutdown
Current Limiting
Noise Reduction Bypass Capacitor (Fixed
Versions)
Power-Saving Shutdown Mode
Space-Saving DDPAK-5, SO-8 Package
6 Factory Pre-set Output Voltages
Low Temperature Coefficient
Adjustable Version
!
Functional Block Diagram
(Adjustable Version)
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
AMP
EN
ADJ
(external)
R1
1.242V
(external)
R2
GND
!
Typical Application
IN
IN
BYP
GND
OUT
OUT
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Applications
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Instrumentation
Portable Electronics
Wireless Devices
PC Peripherals
Battery Powered Widgets
C1
5V 1µF
µ
C2
1nF
AME8826
EN
C3
4.7µF
µ
1
AME [ ANALOG MICROELECTRONICS ]
