L78M05ABDT-TR Precision Linear Regulator

The 7805 range of 5V regulators are an industry workhorse but the L78M05ABDT-TR takes the 7805 further. With an impressive wide temperature range of -40°C to 125°C the precision regulator can supply up to 500mA, have a typical drop-out voltage of 2V (at 350mA) and an output voltage tolerance of 2%. With thermal overload protection and short circuit protection built-in, the L78M05ABDT-TR is a great choice of linear 5 V regulator that is reliable, with years of proven track record in the industry. While a fixed regulator, external components can be used to provide different output voltages and with additional circuitry, the L78M05 can be used for a wide range of circuits including AM modulated power.

Drawings / Package

Key Features

• Fixed 5V output and output current up to 0.5A

• Wide temperature range from –40°C to 125°C

• 2% output tolerance

• Multiple inbuilt protections

  • Thermal overload

  • Short circuit

• Drop-out voltage up to 2V

• Line regulation up to 100mV

General Applications

• Power regulation for microcontrollers

• Power regulation in power supplies both fixed and adjustable

• Power AM modulation

• Hardware compatible as direct replacement for older 7805 parts

Evaluation Board

There is no evaluation board for the L78M05ABDT-TR.  There are plenty of example circuits in the datasheet.

L78M05ABDT-TR Precision Linear Regulator by STMicroelectronics