AS7809ADTR-E1

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

The AS7809ADTR-E1 is a linear voltage regulator manufactured by Diodes Incorporated, belonging to the AS7809 series. It provides a fixed positive output of 9V with a maximum output current capability of 1A. The device is housed in a TO-252-2 package and is designed for surface-mount applications. Key electrical specifications include a maximum input voltage of 29V and an operating temperature range from -40°C to +125°C. The component features internal protection mechanisms against thermal overload and short circuits.

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

• Provides stable fixed positive voltage regulation
• Includes internal thermal shutdown protection
• Features built-in short circuit current limiting

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

• Local on-card voltage regulation
• Power supply conditioning for electronic circuits
• General purpose linear regulation tasks

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

Verify availability status carefully as this specific part number is listed as discontinued or end-of-life by the manufacturer. Confirm if the equivalent AS7809ADTR-G1 variant meets project requirements, noting that ordering suffixes may indicate compliance updates rather than functional changes. Ensure final design decisions account for potential supply chain constraints associated with obsolete components.

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

Select this component only if legacy compatibility with the AS7809 series is required. Consider the TO-252-2 package constraints for thermal management at full load. Evaluate alternative active parts if long-term production stability is critical, given the discontinuation status. Verify that the 9V fixed output aligns precisely with system power bus requirements without need for external adjustment.

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

This regulator is part of the AS7809 family of three-terminal positive linear regulators produced by Diodes Incorporated. These devices are engineered for robust performance in power management integrated circuits (PMIC) applications. The series typically offers high ripple rejection and reliable operation across wide industrial temperature ranges, serving as a fundamental building block for DC power distribution systems.

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

The AS7809ADTR-G1 is a documented substitute within the same series. Verify pinout and thermal characteristics match before substitution.