RS7805AJ Datasheet, PDF (1/12 Pages) Orister Corporation – 1.0A Low Dropout Positive Voltage Regulator

RS78XX
1.0A Low Dropout Positive Voltage Regulator
Page No. : 1/12
General Description
The RS78XX series can provide local on‐card regulation, eliminating the distribution problems associated with single point
regulation. Each employs internal current limiting, thermal shut‐down and safe operating area protection, making it essen‐
tially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed
primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages
and currents.
Features
Applications
● Output Current In Excess of 1A
● Output Voltages of 5V, 6V, 8V, 9V, 12V
● Internal Short‐Circuit Current Limiting & Thermal
Overload Protection
● Guaranteed In Extended Temperature Range
● SCSI‐2 Active Termination
● High Efficiency Linear Regulators
● 5V to 3.3V Voltage Converter
● Battery Charger
● Battery Management Circuits For Notebook And
Palmtop PCs
● Core Voltage Supply: FPGA, PLD, DSP, CPU
Schematic Diagram & Equivalent Circuit
Input
1
Current
Generator
Series
Pass
Element
Output
3
SOA
Protection
Starting
Circuit
Reference
Voltage
Error
Amplifier
Thermal
Protection
GND
2
VIN
VOUT
This integrated circuit can be damaged by ESD. Orister Corporation recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
DS‐RS78XX‐08 September, 2009
www.Orister.com