[{"data":1,"prerenderedAt":278},["ShallowReactive",2],{"component:lm386:en":3},{"component":4,"localizationFallbackIssues":228,"related":229,"equivalentSlugs":277},{"schemaVersion":5,"governance":6,"id":18,"mpn":19,"slug":18,"primaryCategory":20,"manufacturers":21,"lifecycleStatus":23,"shortDescription":24,"deepTechnicalOverview":25,"packages":26,"absoluteMaximums":99,"recommendedOperating":106,"parametricAttributes":110,"gotchas":171,"datasheetUrl":17,"documentationSources":191,"applicationCircuits":200,"equivalents":209,"mountedOnBoards":217,"seo":218},"1.0.0",{"publication":7,"verification":10,"provenance":15},{"status":8,"publishedDate":9},"published","2026-10-18",{"status":11,"verifiedDate":9,"verifiedBy":12,"checklist":13},"verified","Claude (draft and CAD redraw); Gemini (independent documentary review against TI SNAS545D); owner publication GO; no bench or native-human claim",{"schema":14,"technicalFacts":14,"relationships":14,"sources":14},true,{"sourceUrls":16},[17],"https:\u002F\u002Fwww.ti.com\u002Flit\u002Fds\u002Fsymlink\u002Flm386.pdf","lm386","LM386N-1","op_amp_comparator",[22],"Texas Instruments","active","Low-voltage mono audio power amplifier with an internal gain of 20, adjustable to 200, that drives a 4–32 Ω speaker from a 4–12 V supply with a handful of external parts.","The LM386 is a mono power amplifier for low-voltage consumer audio. Its gain is set internally to 20 (26 dB) to keep the external part count low; a capacitor between pins 1 and 8 bypasses the internal 1.35 kΩ resistor and raises the gain to 200 (46 dB), and a resistor in series with that capacitor sets any gain in between. Both inputs are referenced to ground through internal 50 kΩ resistors, and the output biases itself to half the supply voltage, so a speaker is connected through a series capacitor. Quiescent current is 4 mA typical at 6 V, which makes the part suited to battery operation. The figures on this page come from the Texas Instruments LM386 datasheet (SNAS545D); TI notes that its application circuits are not part of the component specification and must be validated in the final design.",[27,71,85],{"packageType":28,"pinCount":29,"thermalResistanceThetaJA":30,"thermalResistanceThetaJC":31,"pins":32},"PDIP-8",8,53.4,42.1,[33,40,46,50,55,60,65,69],{"pinNumber":34,"pinName":35,"electricalType":36,"isFiveVoltTolerant":37,"internalPull":38,"description":39},1,"GAIN","passive",false,"none","Gain setting pin. Open together with pin 8, the internal 1.35 kΩ resistor sets the gain to 20 (26 dB); a capacitor from pin 1 to pin 8 raises it to 200 (46 dB), and a resistor in series with that capacitor sets any gain between 20 and 200.",{"pinNumber":41,"pinName":42,"electricalType":43,"isFiveVoltTolerant":37,"internalPull":44,"description":45},2,"-INPUT","analog_in","pulldown","Inverting input, biased to ground through an internal 50 kΩ resistor. Input voltage −0.4 V to +0.4 V (absolute maximum); tie to ground when the signal drives pin 3.",{"pinNumber":47,"pinName":48,"electricalType":43,"isFiveVoltTolerant":37,"internalPull":44,"description":49},3,"+INPUT","Noninverting input, biased to ground through an internal 50 kΩ resistor. Input voltage −0.4 V to +0.4 V (absolute maximum).",{"pinNumber":51,"pinName":52,"electricalType":53,"isFiveVoltTolerant":14,"internalPull":38,"description":54},4,"GND","ground","Ground reference.",{"pinNumber":56,"pinName":57,"electricalType":58,"isFiveVoltTolerant":37,"internalPull":38,"description":59},5,"VOUT","analog_out","Amplifier output; it biases itself to about half the supply voltage, so the speaker is AC-coupled through a series capacitor (250 µF in the datasheet circuits).",{"pinNumber":61,"pinName":62,"electricalType":63,"isFiveVoltTolerant":14,"internalPull":38,"description":64},6,"VS","power_in","Supply voltage: 4 V to 12 V recommended (LM386N-4: 5 V to 18 V). TI recommends a capacitor to GND close to this pin.",{"pinNumber":66,"pinName":67,"electricalType":58,"isFiveVoltTolerant":37,"internalPull":38,"description":68},7,"BYPASS","Bypass decoupling path (datasheet pin type O). May be left open; the datasheet specifies PSRR with a 10 µF capacitor on this pin.",{"pinNumber":29,"pinName":35,"electricalType":36,"isFiveVoltTolerant":37,"internalPull":38,"description":70},"Gain setting pin, used together with pin 1 (see pin 1).",{"packageType":72,"pinCount":29,"pitchMm":73,"thermalResistanceThetaJA":74,"thermalResistanceThetaJC":75,"pins":76},"SOIC-8",1.27,115.7,59.7,[77,78,79,80,81,82,83,84],{"pinNumber":34,"pinName":35,"electricalType":36,"isFiveVoltTolerant":37,"internalPull":38,"description":39},{"pinNumber":41,"pinName":42,"electricalType":43,"isFiveVoltTolerant":37,"internalPull":44,"description":45},{"pinNumber":47,"pinName":48,"electricalType":43,"isFiveVoltTolerant":37,"internalPull":44,"description":49},{"pinNumber":51,"pinName":52,"electricalType":53,"isFiveVoltTolerant":14,"internalPull":38,"description":54},{"pinNumber":56,"pinName":57,"electricalType":58,"isFiveVoltTolerant":37,"internalPull":38,"description":59},{"pinNumber":61,"pinName":62,"electricalType":63,"isFiveVoltTolerant":14,"internalPull":38,"description":64},{"pinNumber":66,"pinName":67,"electricalType":58,"isFiveVoltTolerant":37,"internalPull":38,"description":68},{"pinNumber":29,"pinName":35,"electricalType":36,"isFiveVoltTolerant":37,"internalPull":38,"description":70},{"packageType":86,"pinCount":29,"pitchMm":87,"thermalResistanceThetaJA":88,"thermalResistanceThetaJC":89,"pins":90},"VSSOP-8",0.65,169.3,73.1,[91,92,93,94,95,96,97,98],{"pinNumber":34,"pinName":35,"electricalType":36,"isFiveVoltTolerant":37,"internalPull":38,"description":39},{"pinNumber":41,"pinName":42,"electricalType":43,"isFiveVoltTolerant":37,"internalPull":44,"description":45},{"pinNumber":47,"pinName":48,"electricalType":43,"isFiveVoltTolerant":37,"internalPull":44,"description":49},{"pinNumber":51,"pinName":52,"electricalType":53,"isFiveVoltTolerant":14,"internalPull":38,"description":54},{"pinNumber":56,"pinName":57,"electricalType":58,"isFiveVoltTolerant":37,"internalPull":38,"description":59},{"pinNumber":61,"pinName":62,"electricalType":63,"isFiveVoltTolerant":14,"internalPull":38,"description":64},{"pinNumber":66,"pinName":67,"electricalType":58,"isFiveVoltTolerant":37,"internalPull":38,"description":68},{"pinNumber":29,"pinName":35,"electricalType":36,"isFiveVoltTolerant":37,"internalPull":38,"description":70},{"supplyVoltageMaxV":100,"inputVoltageMaxV":101,"powerDissipationMaxW":102,"storageTempMinC":103,"storageTempMaxC":104,"esdHbmV":105},15,0.4,1.25,-65,150,1000,{"supplyVoltageMinV":51,"supplyVoltageMaxV":107,"ambientTempMinC":108,"ambientTempMaxC":109},12,0,70,[111,116,121,128,133,139,145,151,156,160,165],{"symbol":62,"name":112,"typicalValue":113,"minValue":51,"maxValue":107,"unit":114,"testCondition":115},"Operating Supply Voltage","4–12","V","LM386N-1, -3, LM386M-1, LM386MM-1; LM386N-4: 5 V to 18 V",{"symbol":117,"name":118,"typicalValue":51,"maxValue":29,"unit":119,"testCondition":120},"IQ","Quiescent Current","mA","VS = 6 V, VIN = 0",{"symbol":122,"name":123,"typicalValue":124,"minValue":125,"unit":126,"testCondition":127},"POUT","Output Power",325,250,"mW","LM386N-1, LM386M-1, LM386MM-1: VS = 6 V, RL = 8 Ω, THD = 10%",{"symbol":122,"name":129,"typicalValue":130,"minValue":131,"unit":126,"testCondition":132},"Output Power (LM386N-3)",700,500,"VS = 9 V, RL = 8 Ω, THD = 10%",{"symbol":134,"name":135,"typicalValue":136,"unit":137,"testCondition":138},"AV","Voltage Gain",26,"dB","VS = 6 V, f = 1 kHz, pins 1 and 8 open (gain 20); 46 dB with 10 µF from pin 1 to pin 8",{"symbol":140,"name":141,"typicalValue":142,"unit":143,"testCondition":144},"BW","Bandwidth",300,"kHz","VS = 6 V, pins 1 and 8 open",{"symbol":146,"name":147,"typicalValue":148,"unit":149,"testCondition":150},"THD","Total Harmonic Distortion",0.2,"%","VS = 6 V, RL = 8 Ω, POUT = 125 mW, f = 1 kHz, pins 1 and 8 open",{"symbol":152,"name":153,"typicalValue":154,"unit":137,"testCondition":155},"PSRR","Power Supply Rejection Ratio",50,"VS = 6 V, f = 1 kHz, CBYPASS = 10 µF, pins 1 and 8 open, referred to output",{"symbol":157,"name":158,"typicalValue":154,"unit":159},"RIN","Input Resistance","kΩ",{"symbol":161,"name":162,"typicalValue":125,"unit":163,"testCondition":164},"IBIAS","Input Bias Current","nA","VS = 6 V, pins 2 and 3 open",{"symbol":166,"name":167,"typicalValue":168,"minValue":51,"unit":169,"testCondition":170},"RL","Speaker Impedance","4–32","Ω","Recommended operating minimum 4 Ω; application examples use 4 Ω to 32 Ω",[172,177,182,186],{"title":173,"severity":174,"description":175,"mitigationStrategy":176},"Input Range Is Only ±0.4 V","critical","The inputs are referenced to ground and their absolute maximum input voltage is −0.4 V to +0.4 V. A line-level or headphone signal can exceed this. At a gain of 20 on a low supply, the output clips well before the input reaches that limit.","Feed the signal through a volume potentiometer to pin 3, as in the datasheet circuits (10 kΩ from the input to ground, wiper to pin 3), and keep pin 3 within ±0.4 V.",{"title":178,"severity":179,"description":180,"mitigationStrategy":181},"No Supply Decoupling at Pin 6","warning","TI recommends a capacitor to GND close to the supply pin and specifies power supply rejection with a 10 µF bypass capacitor on pin 7. Without decoupling, supply ripple and long battery leads reach the output.","Place a capacitor from pin 6 to GND next to the IC (the datasheet gives no value) and keep the speaker leads short; add a capacitor on pin 7 when supply noise is audible.",{"title":183,"severity":179,"description":184,"mitigationStrategy":185},"Unused Input at High Gain","With pins 1 and 8 bypassed for a gain of 200, an unbypassed unused input degrades the gain and can make the amplifier unstable.","Bypass the unused input with 0.1 µF, or short it to ground, depending on the DC source resistance on the driven input (TI §9.2.1.2.2).",{"title":187,"severity":188,"description":189,"mitigationStrategy":190},"Closed-Loop Gain Below 9 Is Unstable","info","The amplifier is compensated only for closed-loop gains greater than 9, which limits how much the feedback can be loaded when shaping the frequency response.","For bass boost with a series RC from pin 1 to pin 5, keep R at 10 kΩ or more when pin 8 is open; with pins 1 and 8 bypassed R can go down to 2 kΩ (TI §9.2.1.2.1).",[192],{"title":193,"url":17,"type":194,"authority":195,"publisher":22,"documentNumber":196,"revision":197,"releaseDate":198,"language":199},"LM386 Low Voltage Audio Power Amplifier","datasheet","primary","SNAS545D","D","2023-08","EN",[201,205],{"title":202,"schematicSlug":203,"topology":204},"Audio amplifier with gain 20","lm386-audio-amplifier-gain-20","Fixed-gain speaker amplifier with volume control and output coupling capacitor.",{"title":206,"schematicSlug":207,"topology":208},"LM386 Audio Amplifier with Bass Boost","lm386-bass-boost-amplifier","Frequency-shaped feedback using a series 10 kΩ and 33 nF branch between pins 1 and 5.",[210,214],{"equivalentMpn":211,"manufacturer":22,"compatibilityType":212,"parameterDifferences":213},"LM386N-3","differing_electrical_limits","Same pinout and PDIP-8 package; output power is specified at VS = 9 V, RL = 8 Ω (700 mW typical, 500 mW minimum).",{"equivalentMpn":215,"manufacturer":22,"compatibilityType":212,"parameterDifferences":216},"LM386N-4","Same pinout and PDIP-8 package; 5 V to 18 V supply (22 V absolute maximum) and output power specified at VS = 16 V, RL = 32 Ω (1000 mW typical).",[],{"canonicalUrl":219,"metaTitle":220,"metaDescription":221,"primarySearchCluster":222,"structuredDataSchema":227},"https:\u002F\u002Fcircuitbase.tech\u002Fcomponent\u002Flm386","LM386 Audio Amplifier Pinout, Datasheet & Circuits | CircuitBase","LM386 pinout for PDIP-8, SOIC-8 and VSSOP-8, supply range, output power, gain 20 to 200, input limits and a minimum-parts speaker amplifier, from the TI datasheet.",[223,224,225,226],"lm386 pinout","lm386 datasheet","lm386 audio amplifier circuit","lm386 gain 200","Product",null,[230,242,254,265],{"id":231,"slug":231,"mpn":232,"primaryCategory":20,"manufacturers":233,"shortDescription":234,"packages":235,"packageTypes":237,"voltage":238,"recommendedOperating":241},"lm358","LM358P",[22],"Industry-standard dual operational amplifier designed for single-supply (3V to 32V) or split-supply (±1.5V to ±16V) operation with true ground sensing, 0.7MHz bandwidth, and low supply current.",[236],{"packageType":28,"pinCount":29},[28],{"context":239,"min":47,"max":240,"typical":56},"supply",30,{"supplyVoltageMinV":47,"supplyVoltageTypV":56,"supplyVoltageMaxV":240},{"id":243,"slug":243,"mpn":244,"primaryCategory":20,"manufacturers":245,"shortDescription":246,"packages":247,"packageTypes":250,"voltage":251,"recommendedOperating":253},"lm393","LM393P",[22],"Industry-standard dual differential comparator with open-collector outputs, single-supply (2V to 36V) or dual-supply (±1V to ±18V) operation, low power consumption, and true ground-level sensing.",[248,249],{"packageType":28,"pinCount":29},{"packageType":72,"pinCount":29},[28,72],{"context":239,"min":41,"max":252,"typical":56},36,{"supplyVoltageMinV":41,"supplyVoltageTypV":56,"supplyVoltageMaxV":252},{"id":255,"slug":255,"mpn":256,"primaryCategory":20,"manufacturers":257,"shortDescription":258,"packages":259,"packageTypes":261,"voltage":262,"recommendedOperating":264},"lmc6482","LMC6482AIM\u002FNOPB",[22],"Dual CMOS rail-to-rail input and output operational amplifier in SOIC-8, with 20 fA typical input bias current and 82 dB typical CMRR under specified conditions; recommended total supply span is 3.0 V to 15.5 V.",[260],{"packageType":72,"pinCount":29},[72],{"context":239,"min":47,"max":263,"typical":-1},15.5,{"supplyVoltageMinV":47,"supplyVoltageTypV":-1,"supplyVoltageMaxV":263},{"id":266,"slug":266,"mpn":267,"primaryCategory":20,"manufacturers":268,"shortDescription":269,"packages":270,"packageTypes":273,"voltage":274,"recommendedOperating":276},"ne5532","NE5532P",[22],"Industry-standard dual low-noise high-speed audio operational amplifier featuring 5 nV\u002F√Hz input noise voltage, 10 MHz unity-gain bandwidth, and 9 V\u002Fµs slew rate.",[271,272],{"packageType":28,"pinCount":29},{"packageType":72,"pinCount":29},[28,72],{"context":239,"min":61,"max":275,"typical":240},40,{"supplyVoltageMinV":61,"supplyVoltageTypV":240,"supplyVoltageMaxV":275},{},1793836424697]