MA5342MSXUMA1 - 2x200W Class D Audio Amplifier MCM | Infineon
MPN: MA5342MSXUMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.45 | $7.45 |
| 10 | $6.82 | $68.20 |
| 100 | $6.18 | $618.00 |
| 500 | $5.61 | $2,805.00 |
| 1,000 | $5.07 | $5,070.00 |
MA5342MSXUMA1 Overview
A Class D audio amplifier is a switching amplifier topology that uses pulse-width modulation (PWM) to drive the output stage at high frequency, then low-pass filters the resulting square wave to recover the audio signal. Compared to Class AB linear amplifiers, Class D amplifiers achieve significantly higher efficiency (typically 85-95% versus 50-70%), reducing power dissipation and enabling smaller form factors. The MA5342MSXUMA1 belongs to the amplifier IC family -> audio amplifier -> Class D amplifier -> power management IC taxonomy used by audio system designers.
Key features include 2x200W continuous output power into 4 ohm loads, an integrated 49.2 mOhm RDS(ON) output stage, analog input interface, and support for supply voltages across the PG-IQFN-42-1 high-power split-rail topology. The device is footprint-compatible with the predecessor IR43x2M family, enabling drop-in upgrades in existing designs without PCB rework. Operating modes support both single-ended and bridge-tied load (BTL) configurations, covering home theater, soundbar, and subwoofer applications.
The MA5342MSXUMA1 uses Infineon's proprietary MCM packaging that mounts the controller die, gate driver die, and four power MOSFET dice in a single leadless package. This reduces parasitic inductance between the gate driver and MOSFET gates, improving switching performance and EMI characteristics. The exposed thermal pad enables direct PCB heat spreading, allowing the part to deliver full-rated power without an external heatsink in typical 4 ohm applications.
Typical applications include home theater receivers, powered stereo speakers, soundbars, subwoofers, automotive infotainment amplifiers, and professional powered monitors. The high efficiency and compact footprint make it well suited for slim-form-factor audio products where thermal management is constrained.
When designing with the MA5342MSXUMA1, follow the reference design's LC output filter values to maintain loop stability and meet EMI targets. The exposed pad must be soldered to a sufficiently large copper pour for thermal dissipation - failure to do so can cause thermal shutdown at high output levels.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for MA5342MSXUMA1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
IR4322M
β Drop-Inπ Reference alternative (not in catalog)
MA2304DNS
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
MA5332MS
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
IR4312M
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
MA5342MSXUMA1 Maximum Ratings & Electrical Characteristics
| Product Type | Class D Audio Amplifier IC (Multi-Chip Module) |
| Output Configuration | 2-Channel (Stereo) |
| Output Power (per channel) | 200 W into 4 ohm |
| Output Power (per channel, 8 ohm) | 144 W |
| Total Output Power (stereo) | 2x200 W |
| Efficiency | 95% |
| Output Stage RDS(ON) | 49.2 mOhm (integrated MOSFETs) |
| Input Type | Analog |
| Modulation Topology | 2-channel PWM controller with high-voltage gate driver |
| Package | PG-IQFN-42-1 (42-PowerVFQFN) |
| Package Size | 7x7 mm |
| Mounting Type | Surface Mount |
| Heatsink Requirement | Little or none required |
| Footprint Compatibility | Drop-in compatible with IR43x2M predecessor family |
| RoHS Status | Compliant |
MA5342MSXUMA1 7x7 mm Pin Configuration Guide
Pin configuration for MA5342MSXUMA1 (7x7 mm package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for MA5342MSXUMA1.
Refer to the datasheet for full pin configuration.
Typical Applications
MA5342MSXUMA1 is suitable for 6 applications: Home Theater Receiver Amplifier Stage, Powered Stereo Speaker, Soundbar Subwoofer Channel, Professional Powered Monitor, Automotive Infotainment Amplifier, Portable PA System.
Home Theater Receiver Amplifier Stage
The MA5342MSXUMA1's 2x200 W output into 4 ohm at 95% efficiency makes it ideal for home theater receiver amplifier stages where multiple channels must deliver high power from a compact chassis. Its PG-IQFN-42-1 (7x7 mm) package fits on main amplifier PCBs alongside HDMI and DSP sections without monopolizing board area, and the integrated 49.2 mOhm MOSFETs eliminate discrete output stage design. Compared to monolithic Class D ICs at this power level, the MCM approach requires less heatsinking and reduces total BOM cost. Recommended companion MPNs: IRS2092 (Class D controller reference), TLD5191ESXUMA1 (supply DC-DC), IGLR70R270D2SXUMA1 (output filter inductor).
Recommended
Powered Stereo Speaker
The MA5342MSXUMA1 fits active bookshelf and floor-standing powered stereo speakers where its 2x200 W continuous output into 4 ohm drives both left and right channels from a single chip. The 95% efficiency keeps the amplifier stage below thermal limits in enclosed speaker cabinets, eliminating the need for bulky heatsinks that would compromise acoustic enclosure design. The exposed thermal pad interfaces directly with the speaker's internal chassis for additional heat spreading. Designers benefit from drop-in compatibility with the IR43x2M family, allowing easy upgrade of existing product lines. Recommended companion MPNs: IPB110P06LMATMA1 (input protection MOSFET), IPD5N25S3430ATMA1 (supply protection).
Recommended
Soundbar Subwoofer Channel
The MA5342MSXUMA1 delivers ample power for the dedicated subwoofer channel in 2.1 and 5.1 soundbar systems, where its 2x200 W output into 4 ohm drives both a subwoofer and a center channel simultaneously or bridged to a single 400 W subwoofer load. Its PG-IQFN-42-1 7x7 mm package enables slim soundbar form factors, while the integrated MCM eliminates the EMI challenges of discrete Class D implementations in close-proximity audio layouts. The 95% efficiency allows sealed soundbar enclosures without active cooling. Recommended companion MPNs: TLD23313EPXUMA1 (LED driver for status indication), ICE3RBR1765JGXUMA1 (auxiliary power supply).
Recommended
Professional Powered Monitor
The MA5342MSXUMA1 is well suited for near-field and midfield powered studio monitor amplifiers, where its low output noise floor and high power density support accurate audio reproduction at professional SPL levels. The integrated MCM architecture minimizes PCB loop area for the high-current switching paths, reducing radiated EMI that could couple into adjacent analog input stages. The PG-IQFN-42-1 package's exposed pad provides a low thermal impedance path to the monitor's metal backplate. Compared to TPA3255-based designs at similar power, the MA5342MSXUMA1 requires less PCB area and supports BTL operation for higher-output single-channel configurations. Recommended companion MPNs: IR2110SPBF (gate driver reference), 1EDN7116GXTMA1 (signal isolation).
Recommended
Automotive Infotainment Amplifier
The MA5342MSXUMA1 can serve as the main amplifier stage in 12V automotive infotainment systems driving door speakers, woofers, and tweeters. Its 2x200 W into 4 ohm output supports high-SPL playback required to overcome road and HVAC noise. However, designers should note that the part is not explicitly AEC-Q100 qualified per current data; proper input protection, supply filtering, and load-dump transient suppression are required for automotive deployment. The compact PG-IQFN-42-1 footprint suits space-constrained head unit and amplifier module enclosures. Recommended companion MPNs: BTS70402EPGXUMA1 (high-side switch for protection), TLE92633BQXXUMA2 (system basis chip).
Recommended
Portable PA System
The MA5342MSXUMA1's 95% efficiency and minimal heatsink requirement make it an excellent fit for battery-powered portable PA systems where battery runtime and weight are critical. Drawing significantly less current than equivalent Class AB amplifiers at the same output level extends operating time on a single charge. The integrated MCM simplifies thermal design in sealed enclosures, allowing ruggedized IP-rated cabinets without active cooling. The PG-IQFN-42-1 footprint is robust under vibration, making it suitable for mobile event and touring applications. Recommended companion MPNs: TLS810A1LDV33XUMA1 (low-dropout regulator for analog sections), BTS51202EKAXUMA1 (power distribution switch).
Recommended
Recommended Products Summary
Engineering reference data for MA5342MSXUMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | IR4322M | MA2304DNS | MA5332MS | IR4312M |
|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | PG-IQFN-42-1 (7x7 mm) | PG-IQFN-42-1 - same | PG-IQFN-42-1 - same | PG-IQFN-42-1 - same | PG-IQFN-42-1 - same |
| Output Power (4 ohm, per channel) | 200 W | 100 W (-50%) | 100 W (-50%) | 150 W (-25%) | 130 W (-35%) |
| Efficiency | 95% | ~90% (-5 pp) | 92% (-3 pp) | 94% (-1 pp) | 91% (-4 pp) |
| Output Stage RDS(ON) | 49.2 mOhm | Integrated, higher RDS(ON) | Integrated | Integrated | Integrated |
| Input Type | Analog | Analog | Analog | Analog | Analog |
| Topology | MCM (controller+gate driver+4 MOSFETs) | MCM | MCM | MCM | MCM |
| Heatsink Required | Little or none | Required | Minimal | Little or none | Minimal |
Key Differentiators
- Highest output power in the PG-IQFN-42-1 family (vs IR4322M)
- Highest efficiency in its power class (vs MA5332MS)
- No external heatsink required at full power (vs IR4312M)
Design Notes
Estimated: At 2x200 W output into 4 ohm at 95% efficiency, the MA5342MSXUMA1 dissipates approximately 21 W of waste heat (5% of 400 W total output). The PG-IQFN-42-1 package exposes a thermal pad that must be soldered to a copper pour of at least 1 square inch on the top layer plus thermal vias to inner ground planes for adequate spreading. Without sufficient copper area, junction temperature can exceed 125 C and trigger thermal shutdown during sustained high-power playback. Designers should validate thermal performance with thermocouple measurements on a prototype before committing to enclosure design.
Place the input analog circuitry and the Class D switching output stage on separate PCB sections with a ground-plane split to prevent high-frequency switching noise from coupling into audio inputs. Keep output LC filter components within 25 mm of the MA5342MSXUMA1 output pins to minimize parasitic inductance and radiated EMI. Use differential routing for the analog inputs and keep them away from the switching node traces. The PG-IQFN-42-1 thermal pad requires an array of thermal vias (0.3 mm diameter, 1 mm pitch) directly beneath the package to provide a low-impedance thermal path to inner ground planes.
Do not exceed the supply voltage absolute maximum rating or the bootstrap capacitor voltage limit on the high-side gate driver - both are common failure causes in Class D designs. Ensure the bootstrap capacitors are 100 nF X7R ceramic placed close to the BST pins with minimal trace length. The MA5342MSXUMA1 requires correct sequencing of the PVDD and VCC supplies per the datasheet; failure to sequence can latch the part in an undefined state. Finally, do not substitute generic LC filter inductors - use the specific part numbers recommended in the reference design for proper current handling and saturation characteristics.
Compliance Information
RoHS compliant per Infineon product page. Not explicitly AEC-Q100 qualified for automotive applications based on current data. Halogen-free status not confirmed in available sources.
