LDK220M-R

Overview

The LDK220M-R is a positive adjustable linear voltage regulator from STMicroelectronics, housed in an SOT-23-5 surface-mount package. It delivers a maximum output current of 200 mA with an input voltage range spanning 2.5 V to 13.2 V. The device features a typical dropout voltage of 100 mV at 100 mA load and maintains a low quiescent current of 90 µA. It incorporates logic-controlled shutdown functionality reducing consumption below 1 µA, alongside internal overcurrent and thermal protection mechanisms.

Feature Summary

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

Applications

• Battery-powered portable devices
• Low noise analog circuit power supplies
• Embedded system voltage regulation

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and electrical characteristics. Ensure component authenticity through authorized channels. Check RoHS compliance status and moisture sensitivity levels prior to assembly. Confirm package dimensions match design constraints.

Selection Notes

Select this component for applications requiring low static current and compact footprint. Verify that the required output voltage falls within the adjustable range supported by external resistors. Ensure input voltage remains within the specified 13.2 V maximum limit during operation.

Part Context

This part belongs to the LDK220 series of low-dropout regulators designed for efficiency and noise reduction. The series offers various fixed and adjustable output options in multiple packages including SOT-23-5, suitable for space-constrained designs.

Replacement Considerations

Consult official substitution lists for compatible alternatives. Verify pin compatibility and electrical specifications before replacing.