MP28160GC-Z

Overview

The MP28160GC-Z is an integrated buck-boost switching regulator from Monolithic Power Systems. It operates with an input voltage range of 2.5 V to 5.5 V and provides a maximum output current of 500 mA. The device features a fixed switching frequency of 1.8 MHz and a typical quiescent current of 220 uA. It supports output voltages up to 5.5 V and functions within an operating temperature range of -40°C to +125°C. The component is housed in a CSP-12 package.

Feature Summary

• Integrated buck-boost topology supporting input voltages below, at, or above the regulated output level
• High switching frequency operation enabling compact external passive component selection
• Low quiescent current consumption for extended battery life in portable applications
• Built-in fault protection mechanisms including thermal shutdown

Applications

• Personal Digital Assistants (PDAs)
• Portable audio and video devices
• Smartphones

Procurement Notes

Verify the specific suffix 'Z' indicates RoHS compliance and halogen-free status as per manufacturer documentation. Confirm the CSP-12 package dimensions match your PCB footprint requirements. Ensure the input voltage source remains within the 2.5 V to 5.5 V operational window to maintain regulation integrity. Check for any specific handling precautions associated with the small form factor CSP packaging during assembly.

Selection Notes

Select this component when a single-stage solution is required for systems where the supply voltage may fluctuate around the target output level. The 1.8 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the 500 mA output limit against peak load demands. The wide operating temperature range suits industrial or automotive environments if qualified accordingly.

Part Context

This part belongs to the MP28160 series of power management ICs designed for space-constrained mobile electronics. It integrates high-side and low-side switches along with control logic into a minimal footprint. The series targets applications requiring efficient power conversion from lithium-ion or similar single-cell batteries.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Monolithic Power Systems directly for pin-compatible or functionally equivalent alternatives.