LD2982AM30R

Overview

The LD2982AM30R is an ultra-low dropout voltage regulator manufactured by STMicroelectronics. It provides a fixed 3.0 V output with a typical quiescent current of 80 μA in on mode and less than 1 μA in off mode when the inhibit pin is pulled low. The device supports up to 50 mA output current, operates within a -40 °C to +125 °C temperature range, and features internal current and thermal limits. It is designed for stability with low ESR ceramic capacitors and includes logic-controlled electronic shutdown.

Feature Summary

• Ultra-low dropout voltage operation suitable for low noise applications
• Logic-controlled electronic shutdown for power management
• Stable with low ESR ceramic capacitors

Applications

• Battery powered systems
• Instrumentation
• Industrial control boards

Procurement Notes

Verify the specific suffix 'AM30R' against official STMicroelectronics documentation to confirm the exact package type (SOT23-5L) and fixed output voltage tolerance. Ensure compatibility with system requirements for low ESR ceramic capacitors and logic-level inhibit signals before procurement.

Selection Notes

Select this component for designs requiring stable regulation with minimal external components using ceramic capacitors. Consider the 50 mA current limit and 80 μA quiescent current for battery life optimization. Verify that the 3.0 V fixed output aligns with load requirements and that the SOT23-5L package fits the PCB layout constraints.

Part Context

The LD2982 series belongs to STMicroelectronics' portfolio of low drop voltage regulators designed for low power applications. These devices are characterized by ultra-low quiescent currents and fast dynamic response, making them suitable for portable electronics and systems where power efficiency is critical.

Replacement Considerations

Check for other LD298x variants with different output voltages or packages if the 3.0 V fixed output or SOT23-5L form factor does not match the design requirements.