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265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode


Package | PIN: DGK | 8
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $0.98
10-24 $0.87
25-99 $0.81
100-249 $0.69
250-499 $0.64
500-749 $0.52
750-999 $0.41
1000+ $0.37


  • VSSOP and WSON Packaging
  • No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits are Necessary
  • Thermal Shutdown Protection Circuitry
  • Unity-Gain Stable
  • External Gain Configuration Capability
  • Latest Generation Click and Pop Suppression Circuitry

Key Specifications

  • THD+N at 1kHz for 265mW Continuous Average Output Power into 8Ω, VDD = 3.3V 1.0% (max)
  • THD+N at 1kHz for 675mW Continuous Average Output Power into 8Ω, VDD = 5V 1.0% (max)
  • Shutdown Current 0.1µA (typ)

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Texas Instruments  LM4902MM/NOPB

The LM4902 is a bridged audio power amplifier capable of delivering 265mW of continuous average power into an 8Ω load with 1% THD+N from a 3.3V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power from a low supply voltage while requiring a minimal amount of external components. Since the LM4902 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.

The LM4902 features an externally controlled, low power consumption shutdown mode, and thermal shutdown protection.

The closed loop response of the unity-gain stable LM4902 can be configured by external gain-setting resistors.