onsemi

MC7808BD2TR4G

MC7808BD2TR4G Description

The MC7808BD2TR4G from onsemi is a fixed 8V, 1A linear voltage regulator in a D2PAK (TO-263) surface-mount package. Designed for robust performance, it accepts input voltages up to 35V and delivers a stable 8V output with a low dropout voltage of 2V (typical) at 1A. This obsolete but reliable regulator features over-temperature and short-circuit protection, ensuring safe operation in demanding environments. With a quiescent current of 8 mA and a 62dB PSRR (120Hz), it minimizes power dissipation while maintaining excellent noise rejection. The device is RoHS3 compliant and REACH unaffected, making it suitable for legacy designs requiring long-term reliability.

MC7808BD2TR4G Features

• Fixed 8V Output: Ensures consistent voltage regulation for precision applications.
• High Input Voltage (35V Max): Supports a wide range of input sources.
• 1A Output Current: Ideal for powering medium-load circuits.
• Low Dropout (2V @ 1A): Efficient operation with minimal headroom loss.
• Protection Features: Includes over-temperature and short-circuit safeguards.
• 62dB PSRR (120Hz): Superior noise suppression for sensitive electronics.
• Surface-Mount D2PAK Package: Optimized for PCB space efficiency and thermal dissipation.
• RoHS3 Compliant: Meets environmental standards for hazardous substances.

MC7808BD2TR4G Applications

This regulator is well-suited for:

• Industrial Control Systems: Stable voltage supply for sensors, PLCs, and actuators.
• Automotive Electronics: Power management in legacy automotive modules.
• Consumer Electronics: Reliable voltage regulation for audio/video equipment.
• Embedded Systems: Low-noise power for microcontrollers and peripherals.
• Legacy Equipment Upgrades: Replacement for obsolete 8V linear regulators in existing designs.

Conclusion of MC7808BD2TR4G

The MC7808BD2TR4G offers a balance of high current capability, robust protection, and low-noise performance, making it a dependable choice for applications requiring a fixed 8V supply. While marked as obsolete, its D2PAK package and thermal protection ensure longevity in harsh environments. Engineers seeking a proven solution for medium-power regulation will find this device particularly valuable, especially in industrial and automotive systems where reliability is critical.