MC33167TVG

Updated: 2026-07-15

Overview

The MC33167TVG is a voltage regulator integrated circuit designed for demanding applications in automotive and industrial environments. As a member of the MC33167 family, this device offers reliable voltage regulation with additional protection features. Manufactured using advanced semiconductor technology, this IC is particularly suited for systems requiring stable power supply under varying load conditions. Its compact package and robust design make it a popular choice for engineers working on power management solutions.

Structure and Working Principle

The MC33167TVG incorporates a reference voltage source, error amplifier, and power transistor in a single package. The device operates by comparing the output voltage to an internal reference and adjusting the pass element to maintain constant output. Key components include thermal shutdown circuitry and current limit protection. The integrated design minimizes external component count while providing stable performance across temperature variations commonly encountered in automotive applications.

Key Features

The MC33167TVG offers several notable features including low dropout voltage, typically below 0.5V at rated current. This makes it suitable for battery-powered systems where input voltage may approach the desired output level. Additional features include built-in thermal protection that automatically disables the device if junction temperature exceeds safe limits. The IC also incorporates short-circuit protection and can withstand the transient voltage spikes common in automotive electrical systems.

Application Areas

Primary applications for the MC33167TVG include automotive electronic systems such as engine control units, infotainment systems, and lighting controls. Its robust design makes it suitable for harsh operating environments. In industrial settings, this regulator finds use in power supplies for control systems, instrumentation, and automation equipment. The device's ability to maintain regulation during input voltage fluctuations makes it valuable in applications with unstable power sources.

Maintenance and Precautions

Proper heat sinking is essential when operating the MC33167TVG near its maximum current rating. The device package includes a thermal pad that should be properly soldered to a PCB copper area for effective heat dissipation. Designers should ensure input voltage remains within specified limits and account for voltage drops in supply wiring. For automotive applications, additional transient suppression may be required to protect against load dump events and other electrical disturbances.

B2B Procurement Guide

When sourcing MC33167TVG ICs, buyers should verify the manufacturer's part number and packaging details. The device is commonly available in tape and reel packaging for automated assembly. Consider minimum order quantities and lead times when planning procurement. For prototype quantities, distributors may offer smaller packaging options. Always request manufacturer datasheets and certificates of conformance for quality assurance purposes.