Device Overview
MA5332MSXUMA1 is Infineon's MERUS MA5332MS two-channel Class D audio power amplifier with analog inputs and an integrated low-resistance output stage. It supports stereo and mono bridge configurations in a compact 7 x 7 mm PG-IQFN-42 package.
Confirmed Technical and Ordering Data
| Parameter | Confirmed value | Scope / condition |
|---|---|---|
| Function | 2-channel Class D amplifier with analog inputs | MERUS integrated amplifier |
| Stereo Output | 2 x 200 W | 4 ohm load, THD = 10% |
| Mono Output | 1 x 400 W | 8 ohm load, THD = 10% |
| Single Supply | +44 to +80 V | single-supply operating range |
| Split Supply | ±22 to ±40 V | split-supply operating range |
| Output Stage Rdson | 24.4 mΩ | integrated output-stage headline |
| Efficiency | 95% full-load | into 4 ohm, datasheet feature condition |
| Protection | OCP, OTP and UVLO | integrated protection set |
| Exact Package | PG-IQFN-42, 7 x 7 mm | 42-pin package |
Engineering Selection Guidance
The 2 x 200 W stereo rating is specified into 4 Ω at THD = 10%, while the 1 x 400 W mono rating is specified into 8 Ω at THD = 10%. These output-power figures should always keep their load and distortion conditions.
Supply architecture can be either +44 to +80 V single supply or ±22 to ±40 V split supply. These are alternative operating schemes rather than rails that are used simultaneously.
The integrated output stage is specified at a 24.4 mΩ RDS(ON) headline and the datasheet lists 95% full-load efficiency into 4 Ω. Thermal design still depends on actual load, modulation, PCB and enclosure conditions.
Lifecycle and Procurement
Infineon currently lists the exact OPN as active and preferred. The exact package used on this page is PG-IQFN-42. Manufacturer lifecycle information does not state HKEQGOO stock, lead time, MOQ or final availability.
Official Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment.
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