ML4901
ML4901 is High Current Synchronous Buck Controller manufactured by Micro Linear.
April 1997 PRELIMINARY
ML4901 High Current Synchronous Buck Controller
GENERAL DESCRIPTION
The ML4901 high current synchronous buck controller has been designed to provide high efficiency DC/DC conversion for next generation processors such as the Pentium® Pro from Intel®. The ML4901 controller, when bined with 2 external MOSFETs, generates output voltages between 2.1V and 3.5V from a 12V supply. The output voltage is selected via an internal 4-bit DAC. Output currents in excess of 14A can be attained at efficiencies greater than 90%. The ML4901 can be enabled/disabled via the SHDN pin. While disabled, the output of the regulator is pletely isolated from the circuit’s input supply....
