Specification	LM4861M/NOPB

Features	Shutdown, Thermal Protection
Max Output Power x Channels @ Load	1.5 W
Max Output Power x Channels @ Load [x]	1
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	1-Channel (Mono)
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Type	Class AB
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2 V

LM4861 Series

1.1-W, mono, analog input Class-AB audio amplifier

Part	Operating Temperature [Max]	Operating Temperature [Min]	Max Output Power x Channels @ Load [x]	Max Output Power x Channels @ Load	Supplier Device Package	Package / Case	Package / Case [y]	Package / Case [x]	Voltage - Supply [Max]	Voltage - Supply [Min]	Type	Mounting Type	Features	Output Type
Texas Instruments LM4861M	85 °C	-40 °C	1	1.5 W	8-SOIC	8-SOIC	3.9 mm	0.154 in	5.5 V	2 V	Class AB	Surface Mount	Shutdown Thermal Protection	1-Channel (Mono)
Texas Instruments LM4861M/NOPB	85 °C	-40 °C	1	1.5 W	8-SOIC	8-SOIC	3.9 mm	0.154 in	5.5 V	2 V	Class AB	Surface Mount	Shutdown Thermal Protection	1-Channel (Mono)
Texas Instruments LM4861MX	85 °C	-40 °C	1	1.5 W	8-SOIC	8-SOIC	3.9 mm	0.154 in	5.5 V	2 V	Class AB	Surface Mount	Shutdown Thermal Protection	1-Channel (Mono)
Texas Instruments LM4861MX/NOPB	85 °C	-40 °C	1	1.5 W	8-SOIC	8-SOIC	3.9 mm	0.154 in	5.5 V	2 V	Class AB	Surface Mount	Shutdown Thermal Protection	1-Channel (Mono)

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.72
		10	$ 1.54
		95	$ 1.24
		285	$ 1.16
		570	$ 1.02
		1045	$ 0.84
		2565	$ 0.79
		5035	$ 0.76
Newark	Each	1	$ 2.45
		10	$ 2.28
		25	$ 2.12
		50	$ 2.03
		190	$ 1.91
		285	$ 1.82
		570	$ 1.78
Texas Instruments	TUBE	1	$ 1.42
		100	$ 1.09
		250	$ 0.81
		1000	$ 0.58

Description

General part information

LM4861 Series

The LM4861 is a bridge-connected audio power amplifier capable of delivering 1.1W of continuous average power to an 8Ω load with 1% THD+N using a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4861 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is optimally suited for low-power portable systems.

The LM4861 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

Documents

Technical documentation and resources

LM4861 1.1W Audio Power Amplifier with Shutdown Mode datasheet (Rev. C)

Data sheet