MP1720DQ-6-LF-P

Overview

The MP1720DQ-6-LF-P is a Class-D audio amplifier from Monolithic Power Systems. It delivers 2.7W output power to a 4Ω load at 5V supply voltage with 10% THD+N. The device features a BTL output structure and integrates 250mΩ power MOSFETs. It operates with an efficiency of up to 90%. The switching frequency is fixed at 1MHz, selected via the suffix '6'. It supports full differential input and includes pop-and-click suppression.

Feature Summary

• High-efficiency Class-D architecture with integrated power MOSFETs for compact designs
• Low electromagnetic interference (EMI) performance enabling compliance without output filters
• Integrated pop-and-click suppression for silent startup and shutdown operations
• Built-in protection mechanisms including short-circuit and thermal overload shutdown

Applications

• Mobile phones
• Tablets
• MP3 players
• Portable audio devices

Procurement Notes

Verify the specific suffix against official MPS documentation to confirm the exact gain setting and package type. The 'P' suffix typically indicates tape and reel packaging, while 'Z' may indicate cut tape or different environmental compliance. Confirm current availability status as distribution channels may report limited stock or end-of-life conditions for certain variants.

Selection Notes

Select this variant when a fixed 6dB gain configuration is required for the application. Ensure the design accommodates the 1MHz switching frequency to optimize external component sizing. Verify that the target system supports the required supply voltage range and that the QFN-10 package fits the PCB layout constraints. Check for compatibility with the intended speaker impedance for optimal power delivery.

Part Context

This component belongs to the MP1720 series of high-efficiency audio amplifiers. The series offers multiple gain options and switching frequencies to suit various portable audio applications. The DQ package denotes a QFN-10 form factor, providing a small footprint suitable for space-constrained mobile devices.

Replacement Considerations

Check for other suffixes within the MP1720 family, such as MP1720DQ-3-LF-P or MP1720DQ-9-LF-P, if different gain settings are acceptable. Verify pinout and electrical specifications match before substitution.