SG7805AIG-DESC

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The SG7805AIG-DESC is a positive fixed linear voltage regulator manufactured by Microchip Technology. It provides a nominal output voltage of 5 V with a maximum load current capability of 1.5 A. The device supports a maximum input voltage of 50 V and operates within an extended temperature range from -55 °C to +150 °C. It features a hermetically sealed TO-257 (TO-3) package designed for through-hole mounting. Key electrical specifications include a line regulation of 75 mV, a load regulation of 100 mV, and a quiescent current of 6 mA.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Hermetically sealed ceramic metal-sealed cofired package suitable for high-reliability environments
• Integrated thermal shutdown, current limiting, and safe-area control protection circuits
• Improved bandgap reference design eliminates drift associated with Zener diode references
• Internal on-chip trimming ensures precise output voltage accuracy

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Military and aerospace power supply systems requiring radiation hardness and reliability
• Industrial automation equipment operating in extreme temperature conditions
• Medical instrumentation requiring stable and isolated power regulation
• Test and measurement devices demanding low noise and high precision

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix designation against the manufacturer's official datasheet to confirm pinout compatibility and performance grade. Ensure the procurement channel sources genuine Microchip Technology components to guarantee hermetic seal integrity and compliance with military-grade specifications. Cross-reference the ordering part number with the latest product change notices to validate current manufacturing status and availability.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a hermetically sealed, high-current positive regulator is required for harsh environments. The SG78xxA series offers superior line and load regulation compared to standard variants due to its improved bandgap reference. Consider the TO-257 package constraints for board layout and thermal management. Verify that the input voltage differential remains within the specified limits to ensure safe operation under all load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This device belongs to the SG78xxA/SG78xx family of positive fixed voltage regulators produced by Microchip Technology. The family includes various output voltage options such as 5 V, 12 V, and 15 V. These regulators are designed for applications requiring robust performance and reliability, often serving as replacements for legacy industry-standard regulators in critical systems where long-term stability and environmental resistance are paramount.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Compatible substitutes include other hermetically sealed positive fixed regulators from the same family, such as the SG7812AIG or SG7815AIG, provided the output voltage matches the system requirement. Verify that alternative parts maintain the same TO-257 package dimensions and pin configuration to ensure mechanical interchangeability without redesigning the printed circuit board.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

What is the maximum input voltage supported by the SG7805AIG-DESC?

The device supports a maximum input voltage of 50 V.

Does the SG7805AIG-DESC include internal protection features?

Yes, it includes thermal shutdown, current limiting, and safe-area control.

What is the typical quiescent current for this regulator?

The typical quiescent current is 6 mA.