DC2448A - Schematic6/6/2018
Demonstration circuit DC2448A-A features a PolyPhase® design using the LTM®4636EY, a 40A high efficiency, switch mode step-down power μModule® regulator. The input voltage range is from 4.7V to 15V. When VIN < 5.5V, short PVCC to VIN with R1 = 0Ω, and set R3 = 0Ω and remove R2. The output voltage range is 0.6V to 3.3V. The DC2448A-A can deliver a nominal 80A output current. As explained in the data sheet, output current derating is necessary for certain VIN, VOUT, and thermal conditions. The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the MODE_PLLIN jumper selects pulse-skipping mode for noise sensitive applications or Burst Mode® operation in less noise sensitive applications. The MODE_PLLIN pin also allows the LTM4636 to synchronize to an external clock signal. The phase shift between the two phases is 180 degree. DC2448A-A has the option of choosing both internal and external compensation circuit for LTM4636. The LTM4636 data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC2448A-A.
Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.