AS78XXA 1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR Description Features The AS78XXA series are three terminal positive voltage regulators Output Current up to 1A designed for a wide variety of applications including local, on-card Fixed Output Voltages of 5V, 6V, 8V, 9V, 12V, 15V and 18V regulation. Output Voltage Accuracy of 4% over the Full Temperature Range The AS78XXA are complete with internal current limiting, thermal Internal Short Circuit Current Limiting shutdown protection, and safe-area compensation which make them Internal Thermal Overload Protection virtually immune from output overload. If adequate heat sinking is Output Transistor Safe-area Protection provided, these regulators can deliver output currents up to 1A. Low Load Regulation Stable Performance in High Temperature The AS78XXA are available in TO-252-2 (3), TO-252-2 (4), TO-252-2 TO-220-3, TO-220-3 (2) and TO-220F-3 (5), TO-220-3, TO-220-3 (2) and TO-220F-3 packages. Lead-Free Finish RoHS Compliant (Notes 1 & 2) Lead-Free Packages: TO-252-2 (3), TO-252-2 (4), TO-252-2 (5) Totally Lead-Free RoHS Compliant (Notes 4 & 2) Applications Available in Green Packages: TO-220-3, TO-220-3 (2) and TO- 220F-3 High Efficiency Linear Regulator Lead-Free Finish RoHS Compliant (Notes 1 & 2) Post Regulation for Switching Supply Halogen and Antimony Free. Green Device (Note 3) Microprocessor Power Supply Lead-Free Packages, Available in Green Molding Compound: Mother Board TO-252-2 (3), TO-252-2 (4), TO-252-2 (5) Totally Lead-Free & Fully RoHS Compliant (Notes 4 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied. 2. See AS78XXA Pin Assignments (Cont.) (Front View) (Front View) 3 3 OUTPUT OUTPUT 2 2 GND GND 1 INPUT 1 INPUT TO-220-3 (Option 3) TO-220-3 (2) (Front View) 3 OUTPUT 2 GND 1 INPUT TO-220F-3 (Top View) (Top View) 3 OUTPUT 3 OUTPUT 2 GND 2 GND 1 INPUT 1 INPUT TO-252-2 (3) (Option 1) TO-252-2 (3) (Option 2) (Top View) (Top View) 3 3 OUTPUT OUTPUT 2 2 GND GND 1 INPUT 1 INPUT TO-252-2 (4) TO-252-2 (5) 2 of 27 AS78XXA March 2018 Diodes Incorporated www.diodes.com Document number: DS36562 Rev. 5 - 2