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SGM2820

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3W Low EMI Class-D Audio Power Amplifier with Auto-Recovering Short-Circuit Protection

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The SGM2820 is a high efficiency, low EMI, filterless, Class-D audio amplifier with auto-recovering short-circuit protection. It operates from 2.5V to 5.5V supply voltage. When powered with 5V supply voltage, the SGM2820 is capable of delivering 3W into a 4Ω load or 1.7W into an 8Ω load, with 10% THD+N.

As a Class-D audio amplifier, the SGM2820 features 88% efficiency and 70dB PSRR at 217Hz which make the device ideal for battery-powered high-quality audio applications.

A key benefit of the SGM2820 over typical Class-D audio power amplifiers is that it generates much less EMI emissions, thus greatly simplifying the system design for portable applications. The device includes the over-current and short-circuit protections with auto-recovery, which ensures the device can be operated safely and reliably without system interaction.

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FEATURES
  • Filterless Class-D Operation

  • High Efficiency up to 88%

  • Maximum Output Power at 5V Supply

    3.0W (4Ω Load, THD+N = 10%)

    1.7W (8Ω Load, THD+N = 10%)

  • Maximum Output Power at 3.6V Supply

    1.5W (4Ω Load, THD+N = 10%)

    0.88W (8Ω Load, THD+N = 10%)

  • Low THD+N: 0.03% (VDD = 3.6V, f = 1kHz, RL = 8Ω, PO = 0.5W)

  • Low Quiescent Current: 2.1mA at VDD = 3.6V

  • Maximum Gain: 24dB (15.9V/V)

  • Low Shutdown Current: 0.1μA

  • High PSRR: 70dB at 217Hz

  • No Bypass Capacitor Required for the Common-Mode Bias

  • Under-Voltage Lockout

  • Auto-Recovering Over-Current and Short-Circuit Protections

  • Thermal Overload Protection

  • Low EMI Design

  • Available in Green UTQFN-1.5×1.5-9L and MSOP-8 Packages

APPLICATIONS

Mobile Phones

Portable Navigation Devices

Multimedia Internet Devices

Portable Speakers

Ordering Information
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)
SGM2820YMS8G/TR
Active
MSOP-8
8
Yes
YesYesYesMSL3
-40℃ to +85℃
View
View
1-24 units : $0.525/unit
25-99 units : $0.45/unit
100-249 units : $0.375/unit
250-499 units : $0.3/unit
500-999 units : $0.2625/unit
1000-9999 units : $0.195/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 70 days
1000K and above : 98 days
SGM2820YUSN9G/TR
Active
UTQFN-1.5×1.5-9L
9
Yes
YesYesYesMSL1
-40℃ to +85℃
View
View
1-24 units : $0.525/unit
25-99 units : $0.45/unit
100-249 units : $0.375/unit
250-499 units : $0.3/unit
500-999 units : $0.2625/unit
1000-9999 units : $0.195/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 70 days
1000K and above : 98 days

* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.

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SG Micro Corp (SGMICRO) specializes in the development, manufacturing and sales of high-performance and high-reliability integrated circuits for analog signal conditioning and system power management, offering innovative solutions to a broad range of applications in the industrial, automotive, communication, computing, consumer electronics, and medical equipment markets.
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