AME, Inc.
AME78LXX
100mA Positive Linear Regulator
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General Description
The AME78LXX is a fixed output positive regulator. The
regulator can provide local on card regulation, eliminating
the distribution problems associated with single point regu-
lation. The AME78LXX can be used in logic systems,
instrumentation, HiFi, and other solid state electronic
equipments. When used as a Zener diode/resistor com-
bination replacement, the AME78LXX usually results in
an effective output impedance improvement of two orders
of magnitude, and lower quiescent current.
With adequate heat sinking the AME78LXX can deliver
100mA output current. Current limiting is included to limit
the peak output current to a safe value.
The AME78LXX is available in the plastic TO-92, SO-8
and SOT-89 packages.
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Functional Block Diagram
Input
Current
Limiting
Amplifier
Thermal
Protection
Output
Error
Amp.
Bandgap
Voltage
GND
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Features
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Guaranteed 100mA Output
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Fixed Output Voltage
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Typical Line Regulation
≤
18mV
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Accurate to Within
±
5%
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Internal Short Circuit Current-Limiting
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TO-92, SO-8, and SOT-89 Package
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Typical Application
V
IN
AME78LXX
V
OUT
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Applications
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Post Regulation for Switching Supply
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Microprocessor Power Supply
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Mother Board I/O Power Supply
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Battery Power Circuit
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Instrument
Note1: Bypass Capacitors are recommended for optimum
stability and transient response and should be located as
close as possible to the regulator
0.33uF
(Note1)
0.1uF
(Note1)
1
AME, Inc.
AME78LXX
100mA Positive Linear Regulator
n
Ordering Information (contd.)
Part Number
AME78L05AJFT
AME78L05AJFTZ
AME78L05AJHA
Marking*
A78L05
AJFww
A78L05
AJFww
78L05
AJHA
yyww
78L05
AJHA
yyww
AME
78L05
AJAT
yyww
AME
78L05
AJAT
yyww
A78L08
AJFww
A78L08
AJFww
78L08
AJHA
yyww
78L08
AJHA
yyww
AME
78L08
AJAT
yyww
AME
78L08
AJAT
yyww
A78L09
AJFww
A78L09
AJFww
Output Voltage
5V
5V
5V
Package
SOT-89
SOT-89
SO-8
Operating Temp. Range
-40
o
C to 125
o
C
-40
o
C to 125
o
C
-40
o
C to 125
o
C
AME78L05AJHAZ
5V
SO-8
-40
o
C to 125
o
C
AME78L05AJAT
5V
TO-92
-40
o
C to 125
o
C
AME78L05AJATZ
5V
TO-92
-40
o
C to 125
o
C
AME78L08AJFT
AME78L08AJFTZ
AME78L08AJHA
8V
8V
8V
SOT-89
SOT-89
SO-8
-40
o
C to 125
o
C
-40
o
C to 125
o
C
-40
o
C to 125
o
C
AME78L08AJHAZ
8V
SO-8
-40
o
C to 125
o
C
AME78L08AJAT
8V
TO-92
-40
o
C to 125
o
C
AME78L08AJATZ
8V
TO-92
-40
o
C to 125
o
C
AME78L09AJFT
AME78L09AJFTZ
9V
9V
SOT-89
SOT-89
-40
o
C to 125
o
C
-40
o
C to 125
o
C
4
Note:yyww represents date code
* a line on top of the first letter represents lead free plating such as A78L05.
Please consult AME sales office or authorized Rep./Distributor for voltage accuracy and package type availability.
Automotive Electronics
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