LDK130M33RY

Overview

The LDK130M33RY is a fixed-output linear voltage regulator from STMicroelectronics, providing a stable 3.3V output with a maximum current capacity of 300mA. It operates within an input voltage range of 1.9V to 5.5V and features a typical dropout voltage of 100mV at 100mA load. The device exhibits low quiescent current of 60µA and achieves shutdown consumption below 1µA via logic control. It includes overcurrent and thermal protection, maintains PSRR of 55dB, and functions across -40°C to 125°C in SOT-23-5 packaging.

Feature Summary

• Logic-controlled electronic shutdown for ultra-low power consumption
• Internal short-circuit constant current limiting and thermal protection
• Compatible with ceramic capacitors for stability

Applications

• Low-power battery-powered applications
• Automotive electronics requiring AEC-Q100 qualification
• Post-regulation tasks for sensitive components

Procurement Notes

Verify the specific suffix 'Y' against the manufacturer datasheet to confirm package type and tape/reel specifications. Ensure compatibility with required automotive grade standards if applicable. Confirm lead frame updates referenced in PCN documents prior to procurement.

Selection Notes

Select this component for designs requiring precise 3.3V regulation with minimal noise. Consider its low quiescent current for battery efficiency. Verify that the input voltage remains within the 1.9V to 5.5V range and that the load does not exceed 300mA.

Part Context

Part of the LDK130 series designed for automotive handheld and portable guide applications. It offers very low noise and dropout characteristics suitable for precision post-regulation in compact surface-mount packages like SOT-23-5.

Replacement Considerations

LDK130C33R shares similar electrical characteristics but utilizes SOT-323-5L packaging. Verify pinout compatibility and thermal performance differences before substitution.