MIC2821-4GMSYML TR

Power Management - Specialized Overview

The MIC2821-4GMSYML TR is a digital power management integrated circuit manufactured by Microchip Technology, formerly Micrel. It integrates a single high-efficiency DC/DC step-down converter and three low-dropout (LDO) regulators within a compact 16-lead MLF package. The device operates from an input voltage range of 2.75V to 5.5V and features independent enables for all outputs. It utilizes I2C interface for voltage control and sequencing, supporting a switching frequency of 2MHz.

Power Management - Specialized Feature Summary

• Integrates one DC/DC buck converter and three LDOs in a single package
• Supports I2C digital control for voltage adjustment and output sequencing
• Features independent enable controls for each regulator output

Power Management - Specialized Applications

• Portable electronic devices requiring multi-rail power supplies
• Embedded systems with strict space constraints
• Battery-powered applications needing efficient voltage regulation

Power Management - Specialized Procurement Notes

Verify the manufacturer designation as Microchip Technology, which acquired Micrel. Confirm the specific suffix 'TR' indicates tape and reel packaging. Ensure the part number matches the exact pinout and electrical specifications required for your design, as variations may exist within the MIC2821 family.

Power Management - Specialized Selection Notes

Select this component when a compact solution combining switching and linear regulation is required. The I2C interface allows for dynamic voltage scaling and precise sequencing, which is critical for complex digital loads. Consider the thermal performance of the MLF package relative to the total power dissipation of the four channels.

Power Management - Specialized Part Context

This part belongs to the MIC2821 series of digital PMICs. It is functionally related to the MIC2810 series but offers enhanced digital control capabilities via I2C. The transition from Micrel to Microchip Technology has maintained the product line's availability and documentation standards.

Power Management - Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing designs before considering alternative components.