LM386 - Low Voltage Audio Power Amplifier

Datasheet	Packaging	Samples & Pricing	Reliability	Application Notes	Knowledge Base

Features

•	Battery operation
•	Minimum external parts
•	Wide supply voltage range: 4V-12V or 5V-18V
•	Low quiescent current drain: 4mA
•	Voltage gains from 20 to 200
•	Ground referenced input
•	Self-centering output quiescent voltage
•	Low distortion: 0.2% (A_V = 20, V_S = 6V, R_L = 8Ohm, P_O = 125mW, f = 1kHz)
•	Available in 8 pin MSOP package

General Description

The LM386 is a power amplifier designed for use in low voltage consumer applications. More...

Applications

•	AM-FM radio amplifiers
•	Portable tape player amplifiers
•	Intercoms
•	TV sound systems
•	Line drivers
•	Ultrasonic drivers
•	Small servo drivers
•	Power converters

Parameters Values

Channels 1 Channels

User Supply 6 Volt

Supply Range +4 - +18 V

Power@ 8Ohms, 1% THD 0.25 Watt

Power@ 8Ohms, 10% THD 0.325 Watt

PSRR 50 dB

THD 0.25 %

THD Conditions Po=0.125W @ Vs=6V, RL=8ohms

Temperature Min 0 deg C

Temperature Max 70 deg C

Typical Performance

*click for larger image

Also Recommended

LM4951	Higher Output Power,lower Voltage,lower Power Consumption,pop & Click Circuitry
LM4877	More Output Power, Better THD And PSRR

Additional Resources

Application Notes

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LM386 Low Voltage Audio Power Amplifier	264 Kbytes	10-Aug-00	Download
LM386 Low Voltage Audio Power Amplifier (Japanese)	268 Kbytes

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

LM386M-1

SOIC NARROW

NOPB
STD

1
1

260
235

RoHS

N/A

Full production

N/A

1K+

$0.31

rail
of
95

NSZXTT
LM386
M-1

8 weeks

2000

LM386MX-1

SOIC NARROW

NOPB
STD

1
1

260
235

RoHS

N/A

Full production

N/A

1K+

$0.31

reel
of
2500

NSZXTT
LM386
M-1

12 weeks

20000

LM386MMX-1

MINI SOIC

NOPB

260

RoHS

N/A

Full production

N/A

1K+

$0.32

reel
of
3500

ZXTT
Z86

8 weeks

7500

LM386N-1

MDIP

NOPB
STD

1
1

NA
NA

RoHS

N/A

Full production

N/A

1K+

$0.32

rail
of
40

NSUZXYTTE#
LM
386N-1

8 weeks

2000

LM386N-3

MDIP

NOPB
STD

1
1

NA
NA

RoHS

N/A

Full production

N/A

1K+

$0.31

rail
of
40

NSUZXYTTE#
LM
386N-3

8 weeks

2000

LM386N-4

MDIP

NOPB
STD

1
1

NA
NA

RoHS

N/A

Full production

N/A

1K+

$0.31

rail
of
40

NSUZXYTTE#
LM
386N-4

8 weeks

2000

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM386MM-1	NONE	NONE	01 Dec 2004

General Description

The LM386 is a power amplifier 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 milliwatts when operating from a 6 volt supply, making the LM386 ideal for battery operation.

Reliability Metrics

Part Number	Process	EFR Sample Size	LTA Device Hours	FITS	MTTF (Hours)
LM386M-1	SLM	44046	3532500	1	1002356520
LM386MMX-1	SLM	44046	3532500	1	1002356520
LM386MX-1	SLM	44046	3532500	1	1002356520
LM386N-1	SLM	44046	3532500	1	1002356520
LM386N-3	SLM	44046	3532500	1	1002356520
LM386N-4	SLM	44046	3532500	1	1002356520

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

Application Notes

Title	Size in Kbytes	Date
AN-263: Application Note 263 Sine Wave Generation Techniques	350 Kbytes	26-May-09	Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

More Application Notes

Title	Size in Kbytes	Date
AN-715: Application Note 715 LM385 Feedback Provides Regulator Isolation	50 Kbytes	3-Oct-02	Download
AN-147: AN-147 Low Cost IC Stereo Receiver	140 Kbytes	4-Oct-04	Download
AN-777: Application Note 777 LM2577 Three Output, Isolated Flyback Regulator	112 Kbytes	26-Sep-02	Download
AN-460: Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors	306 Kbytes	20-Sep-02	Download
AN-460 (Japanese): Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors	322 Kbytes
AN-242: Application Note 242 Applying a New Precision Op Amp	383 Kbytes	4-Oct-04	Download
AN-69: LM380 Power Audio Amplifier	213 Kbytes	4-Nov-95	Download
AN-286: Application Note 286 Applications of the LM392 Comparator Op Amp IC	135 Kbytes	2-Oct-02	Download
AN-146: AN-146 FM Remote Speaker System	134 Kbytes	4-Oct-04	Download
AN-256: Application Note 256 Circuitry for Inexpensive Relative Humidity Measurement	119 Kbytes	2-Oct-02	Download
AN-104: Application Note 104 Noise Specs Confusing?	208 Kbytes	14-Oct-02	Download
AN-284: Application Note 284 Single-Supply Applications of CMOS MICRODACs	121 Kbytes	3-Oct-02	Download
AN-274: Application Note 274 CMOS A/D Converter Interfaces Easily with Many Microprocessors	73 Kbytes	3-Oct-02	Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 7-Nov-2009]