PT8000

The PT8000 series is a 60 A highperformance, Integrated Switching Regulator (ISR) housed in a single low-profile 44-pin SIP package. Operating from an input voltage of +5V, the PT8000 series offers a state-of-the-art "Plug-in Power" solution for highly-integrated digital systems that demand high power supply currents at low voltages.

The output voltage from these modules is programmable over a preset range via a 5-bit input. The PT8001 may be set from 1.3V to 3.5V, which is compatible with Intel's Pentium Pro® µ-processors. The output voltage of the PT8002 is programmable from 1.075V to 1.85V.

The PT8000 series incorporates many features to facilitate system integration. Output short-circuit protection and over-temperature shutdown enables these modules to survive any load fault. Two selfdiagnosotic signals, "Power Good" (PWRGD*) and "Over-Voltage Flag" (OVF*) are provided. And a unique tracking feature allows the output to be synchronized to a master ramp voltage during power-up.

Other features include a standby input, and a differential remote sense to compensate for voltage drop between the ISR and load.

A low ESR capacitance of 2000µF is required at the input for proper operation.