The LM4861M/NOPB is a bridge-connected audio power amplifier designed to deliver 1.1W of continuous average power into an 8Oc load with a total harmonic distortion plus noise (THD+N) of 1% at 1kHz. It operates with a supply voltage range of 2.0V to 5.5V and features a shutdown mode that reduces current consumption to 0.6µA, making it suitable for low-power applications. The device does not require output coupling capacitors, bootstrap capacitors, or snubber circuits, which simplifies the design and reduces the number of external components needed. It is housed in an 8-pin SOIC package and is compatible with PC power supplies. The LM4861 also includes thermal shutdown protection and can be configured for external gain settings, allowing for differential gains of up to 10 without additional compensation components. This amplifier is ideal for use in personal computers, portable consumer products, self-powered speakers, and toys.
1.1W Audio Power Amplifier with Shutdown Mode 8-SOIC -40 to 85
Audio Amplifier, 1.1W, 1 Channel(s), 1 Func, CMOS, PDSO8
Manufacturer: Texas Instruments
Win Source Part Number: 019325-LM4861M/NOPB
Packaging: Tube/Rail
Type: Class AB
Features: Shutdown, Thermal Protection
Mounting: SMD (SMT)
Output Type: 1-Channel (Mono)
Max Output Power x Channels @ Load: 1.5W x 1 @ 8 Ohm
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 85°C (TA)
Case / Package: 8-SOIC
Dimension: 8-SOIC (0.154", 3.90mm Width)
Supply Voltage - Operating: 2 V to 5.5 V
Popularity: Medium
Fake Threat In the Open Market: 41 pct.
Supply and Demand Status: Limited
Application Field: Used in Audio, Computers & Computer Peripherals, Consumer Electronics
1-CH 1.1W Class-AB Audio Amp, 5.5V, 8R, SOIC Product overview: LM4861M/NOPB from Texas Instruments is an Audio Amplifier for embedded electronics, industrial equipment, maintenance repair, OEM production, and component sourcing. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 1.1W, 5.5V, SOIC. Search-friendly keywords include Audio Amplifier, Audio Amplifiers, electronic component, datasheet, replacement part, 1.1W, 5.5V, SOIC. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 742-LM4861M/NOPB can be used for catalog matching and distributor lookup.
Amplifier IC 1-Channel (Mono) Class AB 8-SOIC
IC AMP CLASS AB MONO 1.5W 8SOIC
Audio Amplifiers 1.1W AUDIO POWER AMP
AMP, CLASS AB, 1.1W, 8OHM, 8SOIC; Output Power:1.1W; Amplifier Class:AB; No. of Channels:1 Channel; Supply Voltage Range:2V to 5.5V; Amplifier Case Style:SOIC; No. of Pins:8Pins; Load Impedance:8ohm; Operating Temperature Min:-40°C; RoHS Compliant: Yes
Amplifier IC 1-Channel (Mono) Class AB 8-SOIC
IC AMP CLASS AB MONO 1.5W 8SOIC
IC AMP CLASS AB MONO 1.5W 8SOIC
LM4861 BOOMER SERIES: 1.1W AUDIO
| Texas Instruments | Rochester Electronics | Win Source Electronics | ERSAELECTRONICS PTE. LTD. | DigiKey | Lingto Electronic Limited | VAST STOCK CO., LIMITED | Newark, An Avnet Company | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | ODG (Origin Data Global) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product Category | Audio Amplifier Chips | Operational Amplifiers | Audio Amplifier Chips | Audio Amplifier Chips | Audio Amplifier Chips | Audio Amplifier Chips | Operational Amplifiers | Amplifier and Comparator Chips | Audio Amplifier Chips | Operational Amplifiers | Amplifier and Comparator Chips |
| Product Number | LM4861M/NOPB | LM4861M/NOPB | 019325-LM4861M/NOPB | 742-LM4861M/NOPB | LM4861M/NOPB-ND | LM4861M/NOPB | LM4861M/NOPB | 28AH3487 | LM4861M/NOPB | LM4861M/NOPB | LM4861M/NOPB |
| Product Name | LM4861 1.1W Audio Power Amplifier with Shutdown Mode | Linear - Linear - Amplifiers - Audio - LM4861M/NOPB | 1.1W 5.5V SOIC Audio Amplifier | Audio Amplifiers | Linear - Amplifiers - Audio | Audio Amplifiers | Amp, Class Ab, 1.1W, 8Ohm, 8Soic; Output Power Texas Instruments | Audio Amplifiers | Integrated Circuits (ICs) - Linear - Amplifiers | Audio Amplifiers | |
| RoHS Compliant | RoHS | RoHS | RoHS | ||||||||
| Supply Voltage (VS) | 2 to 5.5 volts | 2 to 5.5 volts | 5 volts | 2 to 5.5 volts | 2 to 5.5 volts | 5.5 to 2 volts | |||||
| Output Power | 1.6 watts | 1.5 watts | 1.5 watts | 1.5 watts | 1.5 watts | ||||||
| Operating Temperature | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 C (-40 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | ||||
| Package Type | SOIC | SOIC; SOIC8 | SOIC; 8-SOIC | Rail/Tube | SOIC; "8-SOIC (0.154"", 3.90mm Width)" | SOIC; 8-SOIC (0.154\", 3.90mm Width) | 8-SOIC (0.154, 3.90mm Width) | Surface Mount |
