3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR AS78XX
Preliminary Datasheet
1
Mar. 2006 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
Figure 1. Package Types of AS78XX
TO-220-3
General Description
The AS78XX series are three terminal positive regula-
tors designed for a wide variety of applications includ-
ing local, on-card regulation.
The AS78XX are complete with internal current limit-
ing, 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 AS78XX are available in TO-220-3 and TO-252-2
packages.
Features
·Output Current up to 1A
·Fixed Output Voltages of 5V, 12V and 15V
·Output Voltage Accuracy of ±4% over the Full
Temperature Range
·Internal Short Circuit Current Limiting
·Internal Thermal Overload Protection
·No External Components
·Output Transistor Safe-area Protection
Applications
·High Efficiency Linear Regulator
·Post Regulation for Switching Supply
·Microprocessor Power Supply
·Mother Board
TO-252-2