N1164

www.DataSheet4U.com NIKO-SEM 5 Bit Programmable Synchronous Buck Converter with Dual LDOs Controller FEATURES N1164 GENERAL DESCRIPTION The N1164 is a 5 bit TTL-compatible input, z Synchronous operation with high efficiency digital-to-analog (DAC) programmable, synz TTL-compatible 5 bit DAC, output voltage chronous buck converter with dual LDOs selection from 1.3V to 3.5V programmable controller designed specifically to power the z High current totem pole output, up to 2 A Pentium ® II as well as the next generation of for direct driving of the external N-Channel P6 family or other high performance core power MOSFETs. logic in desktop personal computer and file z 200 KHz fixed frequency internal oscillator servers CPU applications. z Fast transient response The N1164 switching section provides proz Provides 2 regulated voltages, 1.5V and grammability of output voltage from 1.3V to 2.5V for linear section 2.05V in 50mV steps and 2.0V to 3.5V in 100 z Power-Good output voltage monitor mV increments and the linear sections use z Over-Voltage and Over-Current protection external N-Channel power MOSFETs to z Logic level enable input provide fixed output voltages of 1.5V for GTL z High performance and low cost solution bus and 2.5V for clock. The N1164 monitors all the output voltages. APPLICATIONS A signal Power-Good signal is issued when z Powering Pentium ® II, III or Deschutes, the core is within ±15% of the DAC setting. K6 and other advanced processor Additional features ...