DC1872A

DC1872A demonstration circuit features the LTM®4637EV, a high efficiency, high density switch mode step-down power µModule® regulator. The input voltage range is from 4.5V to 20V. The output voltage is jumper programmable from 1.0V to 1.8V with a rated load current of 20A. Derating is necessary for certain VIN, VOUT, frequency and thermal conditions. The DC1872A offers the TRACK/SS pin, allowing the user to program output tracking or soft-start period. The DC1872A allows the user to choose pulse-skipping mode or Burst Mode® operation for higher efficiency at light load conditions.

• 520KHz operating frequency at RfSET =124Kohm
• 82.2% efficiency at VIN = 12V, VOUT = 1.0V, IOUT = 20A