LA4320AAAEA

Overview

The LA4320AAAEA is a dual low-dropout linear regulator manufactured by Diodes Incorporated. It integrates two independent LDO channels within a compact SOT-23-6 package. The device supports an input voltage range up to 5.5V and delivers a fixed output voltage of 3.3V per channel with a maximum continuous current of 150mA. Key electrical specifications include a quiescent supply current of 250µA, an input bias current of 25nA, and an operating junction temperature range from -40°C to +125°C.

Feature Summary

• Dual-channel integration providing two independent regulated outputs in a single compact package
• Low quiescent current consumption for efficient power management in battery-operated systems
• Wide operating temperature range suitable for demanding industrial and automotive environments

Applications

• Portable consumer electronics requiring multiple stable voltage rails
• Industrial control systems needing reliable low-noise power regulation
• Automotive infotainment and sensor modules operating in harsh thermal conditions

Procurement Notes

Verify the specific suffix and tape-and-reel configuration against the manufacturer's latest datasheet before ordering. Confirm that the SOT-23-6 package dimensions match your PCB footprint requirements. Ensure the supplier provides traceability documentation compliant with industry standards for quality assurance.

Selection Notes

Select this component when a design requires two separate 3.3V supplies from a single source without occupying excessive board space. Consider its 150mA current limit per channel to ensure it meets the load requirements of both downstream circuits. Evaluate the thermal performance under maximum load conditions given the small package size.

Part Context

This part belongs to Diodes Incorporated's portfolio of analog and power management solutions. It serves as a compact power regulation solution for applications where space constraints and multi-voltage requirements are critical. The dual-channel architecture simplifies circuit design by reducing the number of discrete components needed.

Replacement Considerations

Check for direct pin-compatible alternatives within the same product family or from other manufacturers offering identical electrical characteristics. Verify that any substitute maintains the same output voltage, current capacity, and package type to ensure seamless integration into existing designs.