L7805T

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

The STMicroelectronics L7805T is a three-terminal positive linear voltage regulator from the L78xx series, housed in a TO-3 package. It provides a fixed 5 V output with a maximum continuous current of 1.5 A and supports input voltages up to 35 V. The device features thermal overload protection, short-circuit protection, and output safe operating area (SOA) protection. It operates within a temperature range of 0°C to 125°C.

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

• Provides local on-card regulation for stable power delivery
• Includes internal thermal overload and short-circuit protection mechanisms
• Ensures output stability through guaranteed safe operating area limits

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

• General-purpose power supply circuits requiring fixed 5V rails
• Embedded systems utilizing through-hole mounting requirements
• Industrial equipment needing robust thermal performance

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

Verify the specific suffix 'T' indicates the TO-3 package variant, as other suffixes like 'CV' or 'CDT' denote different packages such as TO-220 or DPAK. Confirm RoHS compliance status for the specific manufacturing batch, as older TO-3 variants may differ from modern plastic packages. Ensure the application design accounts for the thermal dissipation characteristics inherent to the metal TO-3 case structure.

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

Select this component when a rugged metal TO-3 package is required for superior heat dissipation compared to plastic alternatives. It is suitable for applications where high peak currents and robust physical construction are prioritized over compact surface-mount footprints. Verify that the system layout accommodates the larger footprint and mounting hole requirements of the TO-3 housing.

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

The L7805T belongs to the widely adopted L78xx family of three-terminal positive regulators. This series is known for its simplicity and reliability in basic linear regulation tasks. The 'T' suffix specifically identifies the TO-3 metal can package, distinguishing it from the more common plastic TO-220 or SMD variants found in the same product line.

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

Cross-reference with other manufacturers offering equivalent TO-3 packaged 5V linear regulators, such as the UA7805 in TO-3 format. Ensure pinout compatibility and thermal resistance values match the existing heatsinking infrastructure before substitution.