Product details

Audio input type Analog Input Architecture Class-AB Speaker channels (Max) Mono Power stage supply (Max) (V) 18 Power stage supply (Min) (V) 4 Load (Min) (ohms) 4 Output power (W) 0.325 THD + N @ 1 kHz (%) 0.2 Iq (Typ) (mA) 4 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 4 Analog supply (Max) (V) 18 PSRR (dB) 50 Operating temperature range (C) 0 to 70
Audio input type Analog Input Architecture Class-AB Speaker channels (Max) Mono Power stage supply (Max) (V) 18 Power stage supply (Min) (V) 4 Load (Min) (ohms) 4 Output power (W) 0.325 THD + N @ 1 kHz (%) 0.2 Iq (Typ) (mA) 4 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 4 Analog supply (Max) (V) 18 PSRR (dB) 50 Operating temperature range (C) 0 to 70
PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9
  • Battery Operation
  • Minimum External Parts
  • Wide Supply Voltage Range: 4 V–12 V or
    5 V–18 V
  • Low Quiescent Current Drain: 4 mA
  • Voltage Gains from 20 to 200
  • Ground-Referenced Input
  • Self-Centering Output Quiescent Voltage
  • Low Distortion: 0.2% (AV = 20, VS = 6 V, RL = 8 Ω, PO = 125 mW, f = 1 kHz)
  • Available in 8-Pin MSOP Package
  • Battery Operation
  • Minimum External Parts
  • Wide Supply Voltage Range: 4 V–12 V or
    5 V–18 V
  • Low Quiescent Current Drain: 4 mA
  • Voltage Gains from 20 to 200
  • Ground-Referenced Input
  • Self-Centering Output Quiescent Voltage
  • Low Distortion: 0.2% (AV = 20, VS = 6 V, RL = 8 Ω, PO = 125 mW, f = 1 kHz)
  • Available in 8-Pin MSOP Package

The LM386M-1 and LM386MX-1 are power amplifiers designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200.

The inputs are ground referenced while the output automatically biases to one-half the supply voltage. The quiescent power drain is only 24 mW when operating from a 6-V supply, making the LM386M-1 and LM386MX-1 ideal for battery operation.

The LM386M-1 and LM386MX-1 are power amplifiers designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200.

The inputs are ground referenced while the output automatically biases to one-half the supply voltage. The quiescent power drain is only 24 mW when operating from a 6-V supply, making the LM386M-1 and LM386MX-1 ideal for battery operation.

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Technical documentation

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Type Title Date
* Data sheet LM386 Low Voltage Audio Power Amplifier datasheet (Rev. C) PDF | HTML 30 May 2017
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
Application note AN-263 Sine Wave Generation Techniques (Rev. C) 22 Apr 2013
Application note Calculating Gain for Audio Amplifiers (Rev. A) 01 Sep 2005

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PDIP (P) 8 View options
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

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