MP5418GQG-Z

Overview

The MP5418GQG-Z is a switching voltage regulator from Monolithic Power Systems, classified under PMIC - Power Management ICs. It integrates a negative charge pump and an adjustable linear regulator (LDO) to provide two outputs ranging from 0V to -5V with a maximum current of 200mA. The device operates on an input supply voltage between 2.3V and 5V. It features a fixed switching frequency of 455kHz and functions within a junction temperature range of -40°C to 125°C. The component is housed in a compact 10-QFN package measuring 1.4x1.8mm.

Feature Summary

• Integrates a negative charge pump for generating inverted voltages alongside an adjustable LDO output.

Applications

• High-speed optical communication modules

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and electrical characteristics, as variations may exist within the MP5418 family. Confirm RoHS compliance status through manufacturer declarations prior to integration. Ensure the ordering quantity aligns with factory packaging requirements specified by the supplier. Cross-reference the Mouser part number 946-MP5418GQG-Z with the manufacturer's official documentation to validate authenticity and revision level before procurement.

Selection Notes

Select this component when a dual-output solution providing both negative rail generation and adjustable regulation is required in a minimal footprint. The integrated topology reduces external component count compared to discrete solutions. Verify that the 200mA output current capability meets the load requirements of the target application circuit. Ensure the input voltage range of 2.3V to 5V is compatible with the system power supply architecture.

Part Context

This part belongs to the MP series of power management integrated circuits from Monolithic Power Systems. It is categorized specifically as a switching voltage regulator combining charge pump and linear regulator technologies. The device is designed for applications requiring efficient power conversion in space-constrained environments, leveraging the small 10-QFN package size.

Replacement Considerations

MP5418AGQG-P is listed as a parameter-equivalent substitute.