MP8859GQ-0000-Z

Voltage Regulators - DC DC Switching Regulators Overview

The MP8859GQ-0000-Z is a synchronous Buck-Boost switching voltage regulator manufactured by Monolithic Power Systems. It features an integrated four-switch topology capable of handling input voltages from 2.8 V to 22 V and delivering up to 3 A of output current. The device supports an adjustable output range of 1 V to 20.47 V with a fixed switching frequency of 500 kHz. It includes an I2C interface for digital control, operates within a temperature range of -40°C to +125°C, and utilizes a QFN-16 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a four-switch synchronous Buck-Boost topology for wide input voltage adaptability
• Provides digital configuration and monitoring capabilities via an I2C interface
• Includes built-in protection mechanisms such as thermal shutdown and overcurrent protection

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial automation equipment requiring stable power regulation
• Medical instrumentation systems needing precise voltage control
• Battery-powered devices operating across varying charge levels

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix Z against official MPS documentation to confirm exact packaging and tape-and-reel specifications. Ensure compatibility with the required I2C address settings and check that the QFN-16 footprint matches your PCB layout constraints. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring both step-up and step-down conversion from a single supply rail. The integrated MOSFETs simplify design compared to discrete solutions. Consider the 500 kHz switching frequency for balancing efficiency and passive component size. Ensure the application environment stays within the specified -40°C to +125°C operational temperature limits for reliable performance.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MPS MP8859 series of digital power management ICs. It is designed for applications demanding high efficiency and flexible voltage regulation. The QFN-16 package offers a compact solution for space-constrained designs. Related evaluation tools include the EVKT-MP8859 kit for development purposes.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult MPS official documentation for direct pin-to-pin replacements or functional equivalents within the same product family. Verify that any substitute maintains the 3 A current rating and I2C interface compatibility.