The L7818 is a fixed positive voltage regulator designed to provide a stable +18V output, commonly used in regulated power supply and general-purpose electronic circuits.
Configuration:
Fixed positive linear voltage regulator
Part of L78xx series
Electrical Characteristics:
Output voltage: +18 V
Output current: up to 1 A
Input voltage: up to 35 V
Dropout voltage: approximately 2 V
Built-in thermal overload protection
Short circuit current limiting
Package:
TO-220 through-hole package
Construction:
Designed for PCB mounting with heatsink support
Provides stable voltage regulation under varying load conditions
Configuration Notes:
Requires input voltage at least ~2 V higher than output for proper regulation
Suitable for regulated DC power supply designs
Thermal management required for higher load currents
Intended Use:
Regulated power supply circuits
Audio amplifier circuits
General-purpose electronics requiring fixed +18 V
Voltage regulation in linear power supply designs
