LM4991MAX/NOPB
Active3.0-W, MONO, ANALOG INPUT CLASS-AB AUDIO AMPLIFIER
Deep-Dive with AI
Search across all available documentation for this part.
LM4991MAX/NOPB
Active3.0-W, MONO, ANALOG INPUT CLASS-AB AUDIO AMPLIFIER
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LM4991MAX/NOPB |
|---|---|
| Features | Depop, Thermal Protection, Shutdown |
| 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] | 2.2 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.00 | |
| 10 | $ 0.89 | |||
| 25 | $ 0.85 | |||
| 100 | $ 0.70 | |||
| 250 | $ 0.65 | |||
| 500 | $ 0.58 | |||
| 1000 | $ 0.45 | |||
| Digi-Reel® | 1 | $ 1.00 | ||
| 10 | $ 0.89 | |||
| 25 | $ 0.85 | |||
| 100 | $ 0.70 | |||
| 250 | $ 0.65 | |||
| 500 | $ 0.58 | |||
| 1000 | $ 0.45 | |||
| Tape & Reel (TR) | 2500 | $ 0.42 | ||
| 5000 | $ 0.40 | |||
| 12500 | $ 0.39 | |||
| 25000 | $ 0.38 | |||
| Texas Instruments | LARGE T&R | 1 | $ 0.74 | |
| 100 | $ 0.57 | |||
| 250 | $ 0.42 | |||
| 1000 | $ 0.30 | |||
Description
General part information
LM4991 Series
The LM4991 is a mono bridged audio power amplifier capable of delivering 3W of continuous average power into a 3Ω load with less than 10% THD when powered by a 5V power supply (see Note below). To conserve power in portable applications, the LM4991's micropower shutdown mode (ISD= 0.1µA, typ) is activated when VDDis applied to the SHUTDOWN pin.
Boomer audio power amplifiers are designed specifically to provide high power, high fidelity audio output. They require few external components and operate on low supply voltages from 2.2V to 5.5V. Since the LM4991 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is ideally suited for low-power portable systems that require minimum volume and weight.
Additional LM4991 features include thermal shutdown protection, unity-gain stability, and external gain set.
Documents
Technical documentation and resources
