Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
General Description
The AS78XXA series are three terminal positive
voltage regulators designed for a wide variety of appli-
cations including local, on-card regulation.
The AS78XXA are complete with internal current lim-
iting, thermal shutdown protection, and safe-area com-
pensation which make them virtually immune from
output overload. If adequate heat sinking are provided,
these regulators can deliver output currents up to 1A.
The AS78XXA are available in TO-252-2 (1), TO-
252-2 (3), TO-252-2 (4), TO-220-3 and TO-220F-3
packages.
AS78XXA
Features
·
·
·
·
·
·
·
·
Output Current up to 1A
Fixed Output Voltages of 5V, 6V, 8V, 9V, 12V,
15V and 18V
Output Voltage Accuracy of
±4%
over the Full
Temperature Range
Internal Short Circuit Current Limiting
Internal Thermal Overload Protection
Output Transistor Safe-area Protection
Low Load Regulation
Stable Performance in High Temperature
Applications
·
·
·
·
High Efficiency Linear Regulator
Post Regulation for Switching Supply
Microprocessor Power Supply
Mother Board
TO-220-3
TO-220F-3
TO-252-2 (1)
TO-252-2 (3)
TO-252-2 (4)
Figure 1. Package Types of AS78XXA
Dec. 2012 Rev. 2. 3
1
BCD Semiconductor Manufacturing Limited
Data Sheet
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
Ordering Information (Continued)
AS78XXA
Package
Tempera-
ture Range
Part Number
Lead Free
AS7805AD-E1
AS7805ADTR-E1
AS7806AD-E1
AS7806ADTR-E1
AS7808AD-E1
AS7808ADTR-E1
Marking ID
Green
Lead Free
AS7805AD-E1
AS7805AD-E1
AS7806AD-E1
AS7806AD-E1
AS7808AD-E1
AS7808AD-E1
AS7809AD-E1
AS7809AD-E1
AS7812AD-E1
AS7812AD-E1
AS7815AD-E1
AS7815AD-E1
AS7818AD-E1
AS7818AD-E1
Green
AS7805AD-G1
AS7805AD-G1
AS7806AD-G1
AS7806AD-G1
AS7808AD-G1
AS7808AD-G1
AS7809AD-G1
AS7809AD-G1
AS7812AD-G1
AS7812AD-G1
AS7815AD-G1
AS7815AD-G1
AS7818AD-G1
AS7818AD-G1
Packing
Type
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
AS7805AD-G1
AS7805ADTR-G1
AS7806AD-G1
AS7806ADTR-G1
AS7808AD-G1
AS7808ADTR-G1
AS7809AD-G1
AS7809ADTR-G1
AS7812AD-G1
AS7812ADTR-G1
AS7815AD-G1
AS7815ADTR-G1
AS7818AD-G1
AS7818ADTR-G1
TO-252-2 (1)/
TO-252-2 (3)/
TO-252-2 (4)
-40 to 125
o
C
AS7809AD-E1
AS7809ADTR-E1
AS7812AD-E1
AS7812ADTR-E1
AS7815AD-E1
AS7815ADTR-E1
AS7818AD-E1
AS7818ADTR-E1
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.
Dec. 2012 Rev. 2. 3
5
BCD Semiconductor Manufacturing Limited