AS78XXA
1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR
Description
Features
The DIODES™ AS78XXA series are three-terminal positive voltage
regulators designed for a wide variety of applications including local,
on-card regulation.
The AS78XXA are complete with internal current limiting, thermal
shutdown protection, and safe-area compensation which make them
virtually immune from output overload. If adequate heat sinking is
provided, these regulators can deliver output currents of up to 1A.
The AS78XXA are available in TO-252-2 (3), TO-252-2 (4), TO-252-2
(5), TO-220-3, TO-220-3 (2), and TO-220F-3 packages.
Applications
High-efficiency linear regulators
Post regulation for switching supplies
Microprocessor power supplies
Motherboards
Lead-Free Packages: TO-252-2 (3), TO-252-2 (4), TO-252-2 (5)
Totally Lead-Free; RoHS Compliant (Notes 2 & 3)
Available in “Green” Packages: TO-220-3, TO-220-3 (2) and TO220F-3
Lead-Free Finish; RoHS Compliant (Notes 1 & 3)
Halogen and Antimony Free. “Green” Device (Note 4)
Lead-Free Packages, Available in “Green” Molding Compound:
TO-252-2 (3), TO-252-2 (4), TO-252-2 (5)
Totally Lead-Free & Fully RoHS Compliant (Notes 2 & 3)
Halogen and Antimony Free. “Green” Device (Note 4)
For automotive applications requiring specific change control
(i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable,
and manufactured in IATF 16949 certified facilities), please
contact us or your local Diodes representative.
https://www.diodes.com/quality/product-definitions/
Notes:
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
TO-220-3, TO-220-3 (2) and TO-220F-3
Lead-Free Finish; RoHS Compliant (Notes 1 & 3)
1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied.
2. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
3. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
4. Halogen- and Antimony-free "Green” products are defined as those which contain
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