78L05

IC 78L05 5V 100mA Positive Voltage Regulator – STMicroelectronics L78L05ACZ

The STMicroelectronics L78L05ACZ is a reliable three-terminal positive voltage regulator from the LM78LXX series, delivering a fixed 5V output at up to 100mA. This compact IC is an essential component for game room equipment repair and restoration, providing stable on-board voltage regulation for pinball machines, arcade cabinets, and other electronic systems. It serves as an effective replacement for zener diode/resistor combinations, offering significantly improved output impedance and lower quiescent current — making it a go-to solution for technicians maintaining classic and modern coin-op equipment.

Built with multiple layers of internal protection, the 78L05 is engineered for dependable long-term performance even in demanding environments. No external components are required, simplifying installation and reducing the risk of wiring errors during board-level repairs.

• Fixed 5V positive voltage output
• 100mA output current capacity (with adequate heat sinking)
• Output voltage tolerance of ±5% across the full temperature range
• Internal thermal overload protection prevents IC overheating
• Output transistor safe area protection limits internal power dissipation
• Internal short circuit current limiting for safe operation
• No external components required
• Manufacturer: STMicroelectronics | Part No.: L78L05ACZ