Diodes AS78XXA Manuel d'utilisateur télécharger pdf

AS78XXA

Document number: DS36562 Rev. 3 - 2

1 of 23

www.diodes.com

September 2013

S78XXA

Product Line o

Diodes Incorporated

1A 3-TERMINAL POSITIVE VOLTAGE REGULATOR

Description

The 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 up to 1A.

The AS78XXA are available in TO-252-2 (3), TO-252-2 (4), TO-252-2

(5), TO-220-3 and TO-220F-3 packages.

Applications

 High Efficiency Linear Regulator

 Post Regulation for Switching Supply

 Microprocessor Power Supply

 Mother Board

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

 TO-220-3 and TO-220F-3

 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)

 Available in “Green” Packages: TO-220-3 and TO-220F-3

 Lead-Free Finish; RoHS Compliant (Notes 1 & 2)

 Halogen and Antimony Free. “Green” Device (Note 3)

 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 4 & 2)

 Halogen and Antimony Free. “Green” Device (Note 3)

Notes: 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.

2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

4. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

Pin Assignments

T Package T Package

(TO-220-3) (Option 1) (TO-220-3) (Option 2)

T Package TF Package

(TO-220-3) (Option 3) (TO-220F-3)

INPUT

OUTPUT

GND

INPUT

OUTPUT

GND

INPUT

OUTPUT

GND

OUTPUT

INPUT

GND

1 2 3 4 5 6 ... 22 23

Résumé du contenu

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Page 2 - INPUT OUTPUT

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Page 3 - Functional Block Diagram

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Page 12 - Performance Characteristics

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Page 15 - Option 3

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Page 17 - 2.900REF

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