Product details

Audio input type Analog Input Architecture Class-AB Speaker channels (Max) Mono Power stage supply (Max) (V) 5.5 Power stage supply (Min) (V) 2 Load (Min) (ohms) 8 Output power (W) 0.35 SNR (dB) 102 THD + N @ 1 kHz (%) 1 Iq (Typ) (mA) 1.5 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 2 Analog supply (Max) (V) 5.5 Operating temperature range (C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (Max) Mono Power stage supply (Max) (V) 5.5 Power stage supply (Min) (V) 2 Load (Min) (ohms) 8 Output power (W) 0.35 SNR (dB) 102 THD + N @ 1 kHz (%) 1 Iq (Typ) (mA) 1.5 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 2 Analog supply (Max) (V) 5.5 Operating temperature range (C) -40 to 85
SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 WSON (NGL) 8 6 mm² 2.5 x 2.5
  • WSON, SOIC, and VSSOP Surface Mount Packaging
  • Switch On/Off Click Suppression
  • Unity-Gain Stable
  • Minimum External Components

Key Specifications

  • THD+N at 1kHz, 350mW Continuous Average Output Power into 16Ω: 10% (max)
  • THD+N at 1kHz, 300mW Continuous Average Output Power into 8Ω: 10% (max)
  • Shutdown Current: 0.7μA (typ)

All trademarks are the property of their respective owners.

  • WSON, SOIC, and VSSOP Surface Mount Packaging
  • Switch On/Off Click Suppression
  • Unity-Gain Stable
  • Minimum External Components

Key Specifications

  • THD+N at 1kHz, 350mW Continuous Average Output Power into 16Ω: 10% (max)
  • THD+N at 1kHz, 300mW Continuous Average Output Power into 8Ω: 10% (max)
  • Shutdown Current: 0.7μA (typ)

All trademarks are the property of their respective owners.

The LM4819 is a mono bridged power amplifier that is capable of delivering 350mWRMS output power into a 16Ω load or 300mWRMS output power into an 8Ω load with 10% THD+N from a 5V power supply.

The LM4819 Boomer audio power amplifier is designed specifically to provide high quality output power and minimize PCB area with surface mount packaging and a minimal amount of external components. Since the LM4819 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.

The closed loop response of the unity-gain stable LM4819 can be configured using external gain-setting resistors. The device is available in WSON, VSSOP, and SOIC package types to suit various applications.

The LM4819 is a mono bridged power amplifier that is capable of delivering 350mWRMS output power into a 16Ω load or 300mWRMS output power into an 8Ω load with 10% THD+N from a 5V power supply.

The LM4819 Boomer audio power amplifier is designed specifically to provide high quality output power and minimize PCB area with surface mount packaging and a minimal amount of external components. Since the LM4819 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.

The closed loop response of the unity-gain stable LM4819 can be configured using external gain-setting resistors. The device is available in WSON, VSSOP, and SOIC package types to suit various applications.

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Technical documentation

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* Data sheet LM4819  350mW Audio Power Amplifier with Shutdown Mode datasheet (Rev. D) 21 Mar 2013

Design & development

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Evaluation board

LM4819MBD — 350mW Audio Power Amplifier with Shutdown Mode

The LM4819 is a mono bridged power amplifier that is capable of delivering 350mWRMS output power into a 16Ω load or 300mWRMS output power into an 8Ω load with 10% THD+N from a 5V power supply.

This LM4819MBD is an evaluation board designed to ease the evaluation and effort during the development of a (...)

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SOIC (D) 8 View options
VSSOP (DGK) 8 View options
WSON (NGL) 8 View options

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