LDI559-3.6EN

Overview

The LDI559-3.6EN is a positive fixed linear voltage regulator (LDO) manufactured by Diotec Semiconductor. It provides a nominal output voltage of 3.6V with a maximum output current capability of 300mA. The device is housed in a surface-mount SOT-23-5 package and operates within an industrial temperature range from -40°C to +125°C. Key electrical characteristics include a typical dropout voltage of 0.16V at rated load and a quiescent current of approximately 800nA. The component features an enable control function and is designed for applications requiring low noise and stable regulation in compact form factors.

Feature Summary

• Ultra-low-dropout architecture for efficient power management
• Integrated enable pin for precise power control
• Industrial-grade qualification for wide temperature operation
• Compact SOT-23-5 surface-mount packaging

Applications

• Battery-powered portable electronic devices
• Low-noise analog circuit supply rails
• Embedded system voltage regulation
• Industrial sensor interface circuits

Procurement Notes

Verify the specific manufacturer part number against official Diotec Semiconductor documentation to ensure authenticity. Confirm that the received components match the specified SOT-23-5 package and electrical parameters. Check for any environmental compliance certifications required for your specific application region. Ensure storage conditions adhere to moisture sensitivity level guidelines to prevent damage prior to assembly.

Selection Notes

Select this component when a fixed 3.6V output is required with a maximum load current of 300mA. Consider the ultra-low quiescent current for battery-operated systems where standby power consumption is critical. The SOT-23-5 package is suitable for space-constrained designs. Verify that the input voltage remains within the specified limits to maintain proper regulation and thermal performance under all operating conditions.

Part Context

This component belongs to the LDI559 series of low-dropout regulators from Diotec Semiconductor. The series offers various fixed output voltages tailored for different digital and analog logic families. The LDI559-3.6EN specifically targets applications needing a stable 3.6V rail, such as powering microcontrollers or RF modules. Its design emphasizes efficiency and size reduction compared to traditional linear regulators.

Replacement Considerations

Direct replacements must match the 3.6V output, 300mA current rating, and SOT-23-5 package. Verify pinout compatibility, particularly the enable pin configuration, before substitution. Alternative parts should offer similar dropout voltage and quiescent current specifications to maintain system performance.