onsemi

MC7808CD2TG

MC7808CD2TG Description

The MC7808CD2TG from onsemi is a fixed-output linear voltage regulator designed to deliver a stable 8V output at up to 1A current. Housed in a D2PAK (TO-263) surface-mount package, this regulator supports an input voltage range up to 35V with a typical dropout voltage of 2V @ 1A. It features robust over-temperature and short-circuit protection, ensuring reliable operation in demanding environments. With a quiescent current of 8 mA and a PSRR of 62dB (120Hz), it provides excellent noise rejection, making it suitable for precision analog and digital circuits. The device is RoHS3 compliant and operates across a wide temperature range (0°C to 125°C), though it is marked as obsolete in the product lifecycle.

MC7808CD2TG Features

• Fixed 8V Output: Ensures consistent voltage regulation for downstream components.
• High Input Voltage Tolerance (35V): Accommodates fluctuating input sources.
• 1A Output Current: Sufficient for powering medium-load applications.
• Low Dropout Voltage (2V @ 1A): Minimizes power dissipation.
• Built-in Protections: Over-temperature and short-circuit safeguards enhance reliability.
• Excellent PSRR (62dB): Reduces noise in sensitive circuits.
• Surface-Mount D2PAK Package: Ideal for space-constrained PCB designs.
• Wide Operating Temperature Range (0°C to 125°C): Suitable for industrial and automotive environments.

MC7808CD2TG Applications

This regulator is ideal for applications requiring a stable 8V supply, such as:

• Industrial Control Systems: Powering sensors, actuators, and control logic.
• Automotive Electronics: Voltage regulation for infotainment and dashboard systems.
• Consumer Electronics: Reliable power for audio amplifiers and set-top boxes.
• Embedded Systems: Providing clean power to microcontrollers and peripherals.
• Telecom Equipment: Ensuring stable voltage for communication modules.

Conclusion of MC7808CD2TG

The MC7808CD2TG offers a robust, high-performance solution for 8V voltage regulation with 1A output capability. Its high PSRR, low dropout, and integrated protections make it a dependable choice for noise-sensitive and high-reliability applications. While marked as obsolete, its wide operating range and surface-mount design ensure continued utility in industrial, automotive, and consumer systems. Engineers should verify alternative solutions for long-term designs but can leverage this regulator for legacy or short-term projects.