The LME49600 is a high performance, low distortion high fi- delity 250mA audio buffer. It can be used inside the feedback loop of op amps.
The LME49600 audio buffer is designed for high‑fidelity, high‑current applications such as headphone amplifiers, line drivers, low‑power audio amps, and high‑current op‑amp output stages. It features pin‑selectable bandwidth (110 MHz or 180 MHz) and low quiescent current, making it suitable for a wide range of audio designs.
Key specifications include a typical slew rate of 2000 V/µs, output current up to 250 mA (typical) and 490 mA (max), THD+N of 0.00003 % at 1 kHz, and a supply voltage range of +2.25 V to +18 V. The device is protected by internal current limiting and thermal shutdown, and is offered in a TO‑263 surface‑mount package.
| Output Current (typ) | 250 mA |
|---|---|
| Maximum Output Current | 490 mA (no BW pin) / 550 mA (BW pin connected) |
| Slew Rate | 2000 V/µs (typ) |
The device can source up to 250 mA typical, with a short‑circuit limit of 490 mA (no bandwidth pin) or 550 mA when the BW pin is connected.