MIC2800-G4MYML

Overview

The MIC2800-G4MYML-TR is a digital power management IC from Microchip Technology, formerly Micrel. It integrates one buck converter and two low-dropout (LDO) linear regulators within a single 16-pin QFN package measuring 3x3 mm. The device operates with an input voltage range of 2.7V to 5.5V and supports a switching frequency of 2MHz. Output specifications include 1.8V at 600mA for the buck regulator, and 1.2V at 300mA plus 2.8V at 300mA for the LDOs. It functions across a temperature range of -40°C to 125°C.

Feature Summary

• Integrates a synchronous buck converter and two LDOs for compact multi-rail power solutions
• Features LowQ Mode technology to optimize efficiency during light-load conditions
• Includes Power-On Reset (POR) circuitry to ensure system stability upon startup

Applications

• Portable consumer electronics requiring multiple voltage rails
• Mobile communication devices
• Embedded systems with space-constrained PCB layouts

Procurement Notes

Verify the manufacturer designation as Microchip Technology, which acquired Micrel. Confirm the suffix G4 indicates lead-free compliance and RoHS3 status. Ensure the package type matches the 16-QFN (3x3mm) specification. Check for moisture sensitivity level 3 requirements during storage and handling. Validate that the specific output voltages match the design requirements before integration.

Selection Notes

Select this component when a single IC solution is needed to reduce board space and component count. It is suitable for applications requiring a high-current buck rail alongside lower-current stable LDO outputs. Consider the 2MHz switching frequency for smaller external inductor sizes. Verify that the input voltage range covers the system's supply variations. Evaluate thermal performance given the small QFN footprint.

Part Context

This part belongs to the MIC2800 series of digital power management ICs. It consolidates power conversion functions typically handled by discrete components. The series is designed for portable applications where size and efficiency are critical. Other variants in the family may offer different output configurations or fixed voltage options.

Replacement Considerations

Direct substitutes include other MIC2800 variants with compatible pinouts and electrical characteristics. Verify if alternative packages such as MLF are available for similar functionality. Cross-reference output currents and voltages to ensure compatibility with existing circuit designs.