MP1740EC-LF-Z

Overview

The MP1740EC-LF-Z is a monolithic Class-D audio amplifier manufactured by Monolithic Power Systems. It delivers 3W of output power in a mono configuration with a full bridge output topology. The device operates on a differential input and supports a supply voltage range from 2.5V to 5.5V. Key electrical parameters include a total harmonic distortion plus noise (THD+N) of 0.19% and a quiescent current of 2.7mA. It features a shutdown function for power management. The component is housed in a WLCSP-9 package suitable for surface mount installation, operating within a temperature range of -20°C to +85°C.

Feature Summary

• Class-D amplification architecture providing high efficiency audio output
• Integrated full bridge output stage for single-channel drive
• Low quiescent current consumption for extended battery life
• Built-in shutdown capability for system power control

Applications

• Portable audio devices requiring compact form factors
• Battery-powered consumer electronics
• Embedded audio systems with limited power budgets

Procurement Notes

Verify the specific suffix EC-LF-Z against official Monolithic Power Systems documentation to confirm lead-free status and package variant. Confirm availability status as the product may be discontinued or restricted in certain regions. Ensure compatibility with existing PCB footprints for the WLCSP-9 package before procurement.

Selection Notes

Select this component when a low-profile, single-channel Class-D amplifier is required for portable applications. The WLCSP-9 package offers space savings compared to larger packages. Verify that the 3W output power meets the load requirements and that the 2.5V to 5.5V supply range aligns with the system power design.

Part Context

This part belongs to the MP1740 series of audio amplifiers from Monolithic Power Systems. It is categorized under Audio ICs and specifically designed for high-efficiency sound reproduction. The series focuses on integrating power stages into small footprints for mobile and handheld devices.

Replacement Considerations

Check official MPS documentation for direct pin-to-pin replacements or updated revisions. No public substitute part numbers are confirmed in the provided data.