1FEATURES

2• Pin-Selectable Bandwidth and Quiescent

Current

• Pure Fidelity, Pure Performance

• Short Circuit Protection

• Thermal Shutdown

• TO–263 Surface-Mount Package

APPLICATIONS

• Headphone Amplifier Output Drive Stage

• Line Drivers

• Low Power Audio Amplifiers

• High-Current Operational Amplifier Output

Stage

• ATE Pin Driver Buffer

• Power Supply Regulator

DESCRIPTION

The LME49600 is a high performance, low distortion

high fidelity 250mA audio buffer. The LME49600 is

designed for a wide range of applications. It can be

used inside the feedback loop of op amps.

The LME49600 offers a pin-selectable bandwidth: a

low current, 110MHz bandwidth mode that consumes

7.3mA and a wide 180MHz bandwidth mode that

consumes 13.2mA. In both modes the LME49600 has

a nominal 2000V/μs slew rate. Bandwidth is easily

adjusted by either leaving the BW pin unconnected or

connecting a resistor between the BW pin and the

VEE pin.

The LME49600 is fully protected through internal

current limit and thermal shutdown.

KEY SPECIFICATIONS

• Low THD+N (VOUT = 3VRMS, f = 1kHz,

Figure 26): 0.00003% (typ)

• Slew Rate: 2000V/μs (typ)

• High Output Current: 250mA (typ)

• Bandwidth

– BW Pin Floating: 110MHz (typ)

– BW Connected to VEE: 180MHz (typ)

• Supply Voltage Range: ±2.25V ≤ VS ≤ ±18V