National Semiconductor LM4880
The LM4880 is a dual audio power amplifier capable of delivering typically 250 mW per channel of continuous average power to an 8Ω load with 0.1% (THD) using a 5V power supply. The LM4880 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. The unity-gain stable LM4880 can be configured by external gain-setting resistors.| Part No. | LM4880 |
|---|---|
| Datasheet | LM4880 Download |
| Manufacturer |  National Semiconductor |
| Description | Dual 250mW Audio Power Amplifier |
| Buy | Stock & Price |
GENERAL DESCRIPTION
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 LM4880 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. n THD at 1 kHz at 85 mW continuous average output power into 32Ω: 0.1% (typ) n Output power at 10% THD + N at 1 kHz into 8Ω: 325 mW (typ) n Shutdown Current: 0.7 µA (typ)FEATURES
n No bootstrap capacitors or snubber circuits are necessary n Small Outline (SO) and DIP packaging n Unity-gain stable n External gain configuration capabilityAPPLICATIONS
n Headphone Amplifier n Personal Computers n CD-ROM Players Key Specifications n THD at 1 kHz at 200 mW continuous average output power into 8Ω: 0.1% (max) Typical Application DS012343-1 *Refer to the Application Information section for information concerning proper selection of the input and output coupling capacitors. FIGURE 1.
