The Infineon MERUS™ 2-channel analog input class D audio amplifier multichip module. The MERUS™ MA5332MS multichip module offers the same or even higher output power as monolithic alternatives without a heatsink and 50 percent less footprint. This MCM multi-chip module solution integrates a dual-channel PWM controller, high-voltage gate driver, and 4 low RDS ON MOSFETs. Like its predecessor, IR43x2M, it includes standard class D protection features for reliable operation over various environmental conditions. As a powerful upgrade to IR43x2M and other monolithic solutions, the MA5332MS’ 7x7 mm PG- IQFN-42 package showcases the benefit of a small footprint, high power density, and operation without a heatsink.

2 channel analog input Class D audio amplifier in a small 7x7mm package
Very low RDS ON at 244 mΩ typical, enabling heatsink-less operation at 2x100W at 4Ω
95% efficiency Class D at 2x200W at 4Ω
Split or single power supply capable
Differential or single-ended input
Multiple configuration options: 2xSE, BTL, PSE Parallel Single-Ended
Over-current, over-temperature and under-voltage protections with self-reset feature
Start and stop click noise reduction
Clip and Fault reporting outputs