L78M05ABDT-TR 5V Regulator | 500mA Linear Supply IC | DPAK/TO-252 | STMicroelectronics

L78M05ABDT-TR

A 5 V fixed-output medium-power linear regulator from the 78Mxx family, supporting up to 35 V input and delivering 500 mA output current with built-in short-circuit protection, thermal shutdown, and overload limiting, housed in a DPAK (TO-252) surface-mount package, offering robust power regulation for industrial controllers, communication modules, and appliance power rails.

Product Description

Product Overview

The L78M05ABDT-TR is a medium-power 5V regulator from STMicroelectronics, offering stable 5V output with high PSRR and low-noise performance, suitable for stepping down from wide input ranges such as 12V/24V industrial rails. The device supports 4.75V to 35V input voltage ranges and features a series-regulator architecture with built-in short-circuit, thermal shutdown, and overload protection for enhanced system reliability. Packaged in DPAK (TO-252), it offers excellent thermal performance, making it suitable for medium-power applications and long-term industrial usage.

Key Features

Fixed 5V linear voltage regulator
Output current: 500mA
Input voltage range: 4.75V – 35V
Protection features: short-circuit, thermal shutdown, overload limiting
Low-noise and high PSRR performance
High stability and industrial-grade reliability
Package: DPAK (TO-252), tape-and-reel (-TR)

Product Applications

Industrial devices, PLCs, and power-control modules
Communication modules, IoT gateways, and edge devices
Home-appliance controllers and motor-driver auxiliary power
Analog circuits and sensor power supply
Power rails for security devices such as DVR/NVR
Embedded systems requiring a regulated 5V power source

Technical Specifications

Parameter	Specification
Output Voltage	5V fixed
Output Current	500mA typ.
Input Range	4.75–35V
Dropout Voltage	~2V (typical)
Overcurrent Protection	support
Thermal Shutdown	support
Output Noise	<50µV typ.
Package	DPAK (TO-252)
Operating Temp	−40°C ~ +125°C‘’

RFQ & Support

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