DESCRIPTION

The LX8584/84A/84B series ICs are low dropout three-terminal positive regulators with a nominal 7A output current. This product family is ideally suited for Pentium® Proces sor and Power PCTM applications requiring fast transient response. The LX8584A is guaranteed to have < 1.2V at 7A and the LX8584/84B < 1.4V at 7A dropout voltage, making them ideal to provide well regulated outputs of 2.5V to 3.6V using a 5V input supply. In addition, the LX8584B also of fers ±1% maximum voltage reference accuracy over temperature. Fixed versions are also available and are specified in the Available Options table below.

KEY FEATURES

■ THREE-TERMINAL ADJUSTABLE OR FIXED OUTPUT

■ GUARANTEED 1% VOLTAGE ACCURACY OVER TEMPERATURE (LX8584B)

■ GUARANTEED ≤ 1.2V HEADROOM AT 7A (LX8584A)

■ GUARANTEED ≤ 1.4V HEADROOM AT 7A (LX8584/84B)

■ OUTPUT CURRENT OF 7A

   □ FAST TRANSIENT RESPONSE

   □ 1% VOLTAGE REFERENCE INITIAL ACCURACY

   □ OUTPUT SHORT CIRCUIT PROTECTION

   □ BUILT-IN THERMAL SHUTDOWN

■ EVALUATION BOARD AVAILABLE: REQUEST LXE9001 EVALUATION KIT

APPLICATIONS

■ PENTIUM PROCESSOR SUPPLIES

■ POWER PC SUPPLIES

■ MICROPROCESSOR SUPPLIES

■ LOW VOLTAGE LOGIC SUPPLIES

■ POST REGULATOR FOR SWITCHING SUPPLY