N3004

NIKO-SEM 5 Bit Programmable Synchronous Buck Converter with Dual LDOs FEATURES N3004 GENERAL DESCRIPTION The N3004 is a 5 bit TTL-compatible input, digital-to-analog (DAC) programmable, synchronous buck converter with dual LDOs controller designed specifically to power the Pentium ® II as well as the next generation of P6 family or other high performance core logic in desktop personal computer and file servers CPU applications. The N3004 switching section provides programmability of output voltage from 1.3V to 2.05V in 50mV steps and 2.0V to 3.5V in 100 mV increments and the linear sections use external N-Channel power MOSFETs to provide fixed output voltages of 1.5V for GTL bus and 2.5V for clock. The N3004 monitors all the output voltages. A signal Power-Good signal is issued when the core is within ±15% of the DAC setting. Additional features are built-in over-voltage, over-current protections for the core output and logic compatible shutdown. z Synchronous operation with high efficiency z TTL-compatible 5 bit DAC, output voltage selection from 1.3V to 3.5V programmable z Fast transient response z Provides 2 regulated voltages, 1.5V and 2.5V for linear section z Power-Good output voltage monitor z Over-Voltage and Over-Current protection z Logic level enable input z High performance and low cost solution APPLICATIONS z Powering Pentium, ® II, III or Deschutes, K6 and other advanced processor z High power DC to DC controller with triple output supplies TYPICAL APPLICA...