MP28310GC-Z

Overview

The MP28310GC-Z is a Monolithic Power Systems integrated circuit combining a synchronous step-down converter and an LDO. It features ultra-low quiescent current of 500 nA. The buck regulator supports input voltages from 2 V to 5.5 V with selectable output voltages including 1.2 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, 3 V, and 3.3 V at up to 300 mA. The LDO provides a fixed 1.8 V or 2.8 V output at 100 mA. Operating frequency is 1.5 MHz. It is housed in a 12-CSP (1.2x1.6 mm) package.

Feature Summary

• Integrates a high-efficiency synchronous buck converter with a dedicated low-dropout linear regulator on a single chip.
• Achieves ultra-low power consumption through a standby current specification of 500 nA for extended battery life.
• Utilizes a compact 12-CSP package measuring 1.2 by 1.6 millimeters to minimize printed circuit board area.

Applications

• Portable electronic devices requiring dual voltage rails
• Battery-powered consumer electronics
• Wearable technology systems
• IoT sensor nodes

Procurement Notes

Verify the specific suffix and tape-and-reel configuration against the manufacturer's official ordering guide before purchase. Confirm that the requested quantity aligns with standard factory packaging requirements. Ensure compatibility with surface-mount assembly processes given the small CSP footprint. Cross-reference the RoHS compliance status with current environmental regulations applicable to your region.

Selection Notes

Select this component when system design demands minimal static current draw alongside space-constrained layout requirements. The dual-output architecture simplifies power distribution networks by reducing external component count. Evaluate thermal performance within the 1.2x1.6 mm package constraints under maximum load conditions. Consider the 1.5 MHz switching frequency for electromagnetic interference management relative to nearby sensitive circuits.

Part Context

This device belongs to the MPS portfolio of highly integrated power management solutions designed for mobile applications. It addresses the industry trend toward smaller form factors and longer operational times in portable gadgets. The combination of switching and linear regulation offers flexibility in handling different voltage domains efficiently.

Replacement Considerations

Consult official substitution lists for direct pin-compatible alternatives. Verify electrical parameter equivalence for both the buck and LDO sections. Assess thermal characteristics and package dimensions to ensure mechanical fit without redesigning the PCB layout.