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uA7805, uA7808, uA7810 uA7812, uA7815, uA7824
SLVS056P – MAY 1976 – REVISED JANUARY 2015
µA78xx Fixed Positive Voltage Regulators
1 Features
•1 3-Terminal Regulators • Available in fixed 5-V/8-V/10-V/12-V/15-V/24-V
options • Output Current up to 1.5 A • Internal Thermal-Overload Protection • High Power-Dissipation Capability • Internal Short-Circuit Current Limiting • Output Transistor Safe-Area Compensation • Output Capacitor Not Needed for Stability
2 Applications
• On-card Regulation • Portable Devices • Computing & Servers • Telecommunications
3 Description
This series of fixed-voltage integrated-circuit voltage regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. Each of these regulators can deliver up to 1.5 A of output current. The internal current-limiting and thermal-shutdown features of these regulators essentially make them immune to overload. In addition to use as fixed-voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents, and also can be used as the power-pass element in precision regulators.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
TO-220 (3) 10.16 mm x 8.82 mm
μA78xx
TO-220 (3) 10.16 mm x 8.82 mm
TO-263 (3) 10.06 mm x 9.02 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
4 Simplified Schematic
+V 0.33 µF
µA78xx
+VO 0.1 µF
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
uA7805, uA7808, uA7810 uA7812, uA7815, uA7824
SLVS056P – MAY 1976 – REVISED JANUARY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Simplified Schematic............................................. 1 5 Revision History..................................................... 2 6 Pin Configuration and Functions ......................... 3 7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4 7.2 ESD Ratings ............................................................ 4 7.3 Recommended Operating Conditions....................... 4 7.4 Thermal Information .................................................. 4 7.5 Electrical Characteristics — uA7805......................... 5 7.6 Electrical Characteristics — uA7808......................... 6 7.7 Electrical Characteristics — uA7810......................... 7 7.8 Electrical Characteristics — uA7812 ........................ 8 7.9 Electrical Characteristics — uA7815......................... 9 7.10 Electrical Characteristics — uA7824..................... 10 7.11 Typical Characteristics .......................................... 10
8 Detailed Description ............................................ 11 8.1 Overview ................................................................. 11 8.2 Functional Schematic.............................................. 11 8.3 Feature Description................................................. 11 8.4 Device Functional Modes........................................ 11
9 Application and Implementation ........................ 12 9.1 Application Information............................................ 12 9.2 Typical Application ................................................. 12
10 Power Supply Recommendations ..................... 14 11 Layout................................................................... 15
11.1 Layout Guidelines ................................................. 15 11.2 Layout Example .................................................... 15 12 Device and Documentation Support ................. 15 12.1 Related Links ........................................................ 15 12.2 Trademarks ........................................................... 15 12.3 Electrostatic Discharge Caution ............................ 15 12.4 Glossary ................................................................ 15 13 Mechanical, Packaging, and Orderable Information ........................................................... 15
5 Revision History
Changes from Revision O (August 2012) to Revision P
Page
• Added Applications, Device Information table, Pin Functions table, ESD Ratings table, Thermal Information table, Typical Characteristics, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations se.