MIC2225-4MYMT-TR

Overview

The MIC2225-4MYMT-TR 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 supply, delivering up to 600mA output current in PWM mode with greater than 95% efficiency. The device includes fully integrated MOSFET switches, 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 from –40°C to +125°C.

Feature Summary

• Combines a 2MHz synchronous buck regulator with a 300mA low-dropout linear regulator for compact dual-rail power solutions.
• Provides ultra-low noise performance suitable for sensitive analog and digital loads.
• Features internal power MOSFETs enabling high efficiency and stable operation with small ceramic output capacitors.

Applications

• Application processor core and I/O supply rails
• Camera DSP power management
• Multimedia chipset power distribution

Procurement Notes

Verify the specific suffix '4M' against official Microchip documentation to confirm the fixed output voltage configuration. Ensure the order matches the required pinout and thermal characteristics of the 10-pin Thin MLF package. Cross-reference the manufacturer designation, as Micrel products are now under Microchip Technology. Confirm RoHS compliance status through the latest datasheet revision.

Selection Notes

Select this component when space-constrained designs require both switching regulation efficiency and LDO noise filtering. The 2MHz frequency allows for smaller external inductors and capacitors compared to lower-frequency alternatives. Verify that the load current requirements do not exceed the 600mA buck or 300mA LDO limits. Consider the thermal dissipation capabilities of the 2x2mm package for the intended ambient conditions.

Part Context

This part belongs to the MIC2225 family of dual-channel regulators designed for portable electronics. It integrates power management functions typically requiring multiple discrete components into a single ultra-small footprint. The family offers various fixed output voltage options distinguished by alphanumeric suffixes, catering to different logic levels and system architectures.

Replacement Considerations

Check for other MIC2225 variants with different output voltage suffixes if the electrical parameters match but the fixed voltage differs. Compare with the MIC23250 series for higher frequency applications, noting differences in switching frequency and output current capabilities.