LD1117-2.5

Overview

The UMW LD1117-2.5 is a positive low dropout regulator providing a fixed 2.5V output with less than 1.5% tolerance. It supports up to 1A output current and operates within an input voltage range of 3.9V to 10V. The device features thermal shutdown and current limiting, ensuring protection against overload conditions. It utilizes SOT-223-3L packaging for surface mount applications.

Feature Summary

• Fixed 2.5V output with high accuracy
• Integrated thermal shutdown protection
• Built-in current limiting circuitry

Applications

• Battery Charger
• Cellular Phone
• Portable Instrumentation
• SMPS Post-Regulator

Procurement Notes

Verify the specific package variant (SOT-223-3L) matches the design requirements. Confirm that the input voltage remains within the specified operational limits to ensure stable regulation. Check for any specific ordering suffixes if available in official catalogs.

Selection Notes

Select this component for applications requiring a stable 2.5V rail with moderate current demands. Ensure adequate heat dissipation is provided due to power dissipation characteristics. Verify capacitor requirements for stability as per the datasheet recommendations.

Part Context

Part of the LD1117 series from UTD Semiconductor, designed for low dropout performance. The series includes adjustable and fixed voltage options, catering to various power management needs in portable and battery-powered electronic devices.

Replacement Considerations

Check pin compatibility with existing designs. Verify electrical parameters such as dropout voltage and current capacity match or exceed original specifications before substitution.