Demonstration circuit DC1043A-B features three LTM4601EV high efficiency, high density switch mode step-down power modules in parallel (the LTM4601-1 can be substituted for the slave devices). The input voltage range is from 5.0V to 20V. The output voltage is programmable from 0.6V to 3.3V; refer to step down ratio curve in the LTM4601 datasheet. The rated load current is 30A, while de-rating is necessary for certain VIN, VOUT, and thermal conditions. Master module U1 provides differential remote sensing to accurately regulate output voltage independent of load current. Integrated input and output filters enable a simple PCB layout. Only bulk input and output capacitors are needed externally.
Documentation & Resources
DC1043A - Schematic9/24/2009101K
DC1043A - Demo Manual9/24/20091M
DC1043A - Design File9/24/2009ZIP1M
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