The AS7818AT-E1 is a three-terminal positive voltage regulator manufactured by BCD Semiconductor. As an 'END-OF-LIFE' product, it is no longer being manufactured, and sourcing this component may prove difficult. It's designed to provide a fixed 18V output voltage for a variety of applications.

Applications

• Power Supply Circuits
• Voltage Regulation
• Industrial Control Systems
• Instrumentation
• Linear Regulation Applications

Features

• Fixed 18V Output Voltage
• Internal Short Circuit Protection
• Thermal Overload Protection
• Output Transistor Safe-Area Compensation
• High Ripple Rejection

Benefits

• Provides a stable and regulated 18V power supply
• Protects the regulator from damage due to short circuits
• Prevents overheating and ensures reliable operation
• Maintains a stable output voltage under varying load conditions
• Reduces noise and ripple in the output voltage

Additional Details

The AS7818AT-E1's built-in protection mechanisms ensure stable and reliable functioning in a range of environments. Designed to provide a fixed 18V output, it's ideal for powering various electronic components. Designers choosing to use this part should consider that as an end-of-life product, finding alternatives may be necessary. A review of the datasheet will offer insights into electrical characteristics, thermal behavior, and application guidelines.

Specifications (Typical):

• Output Voltage: 18V
• Input Voltage Range: 20.5V to 35V (Typically)
• Output Current: Up to 1A (with adequate heat sinking)
• Line Regulation: Typically 4mV
• Load Regulation: Typically 8mV
• Dropout Voltage: Typically 2V