Explore application examples for home theatre system and LCD/OLED TVs.

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Next-Level Audio for TVs & Soundbars — RT9125 Stereo 30W Audio Amplifier

 RT9125 Application Note   Smart Speaker   Class-D Audio Power Amplifiers 
Next-Level Audio for TVs & Soundbars — RT9125 Stereo 30W Audio Amplifier
Richtek’s RT9125 is a 30W digital audio amplifier designed for LCD/OLED TVs, soundbars, and home theater systems. Combining premium audio performance with an inductor-less design, it offers perfect balance of sound quality, compactness, and power efficiency.

▊ Why Choose RT9125?

✅ Low Power Consumption:Patented Common Mode Hopping (CMH) topology improves light-load efficiency up to 91% at typical listening levels (<5W).

✅ Flexible Control:Built-in DRC enables independent adjustment of left and right channels, ideal for stereo and multi-channel systems.

✅ High Efficiency:Delivers 2×30W into 8Ω BTL speaker loads with up to 94% efficiency; no external heatsink required.

✅ Clean Audio:Ultra-low 35μV output integrated noise ensures high-resolution sound.

✅ Simplified Design:768kHz switching frequency supports compact filtering; inductor-less operation below 15V reduces PCB space and component count.

☛ Explore more about CMH topology and RT9125-based soundbar and TV designs.
Discover Application Examples and Patented Technology
    Read Application Note  
  

Featured Products * The following products are available at Digikey.

Product Number Power Vn Package Buy
RT9125 download datasheet 30W x2
Stereo
35μV VQFN6x6-48 online buy
RT9125H download datasheet 50W x2
Stereo
35μV RLQFP10x10-64 online buy
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