MIC2225-GFYMT

Overview

The MIC2225-GFYMT is a dual-output voltage regulator featuring a high-efficiency 2MHz PWM synchronous buck converter and a 300mA LDO. It operates from a 2.7V to 5.5V input, delivering up to 600mA output current with over 95% efficiency. The device includes fully integrated MOSFETs, thermal shutdown, and current limit protection. It is housed in a 10-pin 2mm x 2mm Thin MLF package and supports an operating junction temperature range of –40°C to +125°C.

Feature Summary

• Dual-output architecture combining a 2MHz synchronous buck regulator with a 300mA low-dropout linear regulator for efficient power management.
• High efficiency exceeding 95% with internal power MOSFETs supporting up to 600mA output current in PWM mode.
• Ultra-low noise design suitable for sensitive portable applications, stable with small ceramic output capacitors.
• Integrated protection features including thermal shutdown and current limit, plus micropower shutdown capability.

Applications

• Application processors requiring core and I/O supply rails
• Camera DSPs needing low-noise power solutions
• Multimedia chipsets demanding compact power regulation

Procurement Notes

Verify the specific suffix 'GFYMT' against official Microchip documentation to confirm fixed output voltage options and packaging details. Ensure compatibility with the 10-pin Thin MLF footprint. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer, as availability may vary by region.

Selection Notes

Select this component when space-constrained designs require a dual-output solution integrating both switching and linear regulation. It is ideal for portable devices where high efficiency and low noise are critical. Consider the 2MHz switching frequency for smaller external passive components compared to lower-frequency alternatives.

Part Context

The MIC2225 series is part of Micrel's (now Microchip) portfolio of ultra-small, high-efficiency power management ICs. This family targets portable electronics, offering integrated solutions that reduce board space and simplify design. The MIC2225 specifically addresses the need for clean power rails in complex digital systems like multimedia chips.

Replacement Considerations

Check for direct pin-compatible substitutes within the MIC2225 family, such as variants with different fixed output voltages (e.g., MIC2225-4KYMT). Verify electrical parameters match requirements before substitution.

FAQ

What is the maximum output current for the DC/DC converter section?

The synchronous buck regulator can supply up to 600mA of output current.

Does the MIC2225 support ceramic output capacitors?

Yes, the device is stable with small ceramic output capacitors, specifically noted as stable with 2.2µF capacitors.