MC7818CT - onsemi

Manufacturer Part Number

MC7818CT

Manufacturer

onsemi

Introduction

The MC7818CT is part of onsemi's MC78 series of linear voltage regulators. It is designed to provide a fixed 18V output from an input up to 35V.

Product Features and Performance

Fixed 18V output voltage

Maximum input voltage of 35V

Output current capacity of 1A

Low dropout voltage of 2V at 1A

Power Supply Rejection Ratio (PSRR) of 57dB at 120Hz

Operates at temperatures from 0°C to 125°C

Product Advantages

Built-in over-temperature and short circuit protection

High reliability in thermal management

Key Technical Parameters

Input Voltage (Max): 35V

Output Voltage (Min/Fixed): 18V

Voltage Dropout (Max): 2V @ 1A

Output Current: 1A

Quiescent Current (Iq): 6.5 mA

PSRR: 57dB at 120Hz

Quality and Safety Features

Over Temperature Protection

Short Circuit Protection

Compatibility

Through-hole mounting compatible with TO-220-3 package

Application Areas

Power management in consumer electronics

Industrial power systems

Telecommunications equipment

Product Lifecycle

Status: Obsolete

Note: Consider alternatives or check for availability of upgrades

Several Key Reasons to Choose This Product

Reliable fixed output voltage for consistent performance

Robust protection features enhance longevity and safety

High PSRR ensuring low noise performance under varying load conditions

Suitable for a wide range of applications due to its thermal and electrical characteristics

Direct replacement for previous models in the same package, easing upgrade processes