MIC2225-4SYMT

Overview

The MIC2225-4SYMT is a dual-output voltage regulator featuring a high-efficiency 2MHz PWM synchronous buck converter and a 300mA LDO. It accepts an input voltage range of 2.7V to 5.5V and delivers up to 600mA output current from the DC/DC channel. The device achieves greater than 95% efficiency with fully integrated internal power MOSFETs. It operates within a junction temperature range of –40°C to +125°C and is housed in a 10-pin 2mm x 2mm Thin MLF package.

Feature Summary

• Integrates a 2MHz synchronous buck regulator and a 300mA LDO for compact dual-rail power solutions
• Features fully integrated internal power MOSFETs exceeding 95% efficiency
• Supports ultra-fast transient response while remaining stable with small ceramic output capacitors
• Includes micropower shutdown mode, thermal shutdown, and current limit protection

Applications

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

Procurement Notes

Verify the specific suffix '4SYMT' against official Microchip documentation to confirm fixed output voltage settings and pinout compatibility. Ensure the component source matches the manufacturer's authorized distribution channels to guarantee authenticity. Cross-reference the RoHS compliance status and package marking codes with the latest datasheet revision before finalizing procurement orders.

Selection Notes

Select this component when designing portable systems requiring simultaneous core and I/O voltage generation from a single input rail. The 2MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the required load current remains within the 600mA limit for the buck channel and 300mA for the LDO channel during peak operation.

Part Context

This part belongs to the MIC2225 family of ultra-small dual-channel regulators originally developed by Micrel, now part of Microchip Technology. The series targets space-constrained mobile applications where board area and power efficiency are critical constraints. The specific model variant defines the fixed output voltage configuration for the synchronous buck stage.

Replacement Considerations

MIC2225-4MYMT

FAQ

What is the maximum output current for the LDO section?

The LDO section provides a maximum output current of 300mA.

Does the device support variable output voltages?

The MIC2225-4SYMT is a fixed-output variant; other models in the series may offer adjustable options.