Overview

Product Details

Demonstration circuit 2230A-A features the LTM4636EY, a 40A high efficiency, switch mode step-down power μModule® regulator. The input voltage range is from 4.7V to 15V. For input voltage range from 4.7V to 5.5V, short PVCC pin to VIN pin with R8 = R21 = 0Ω and remove R17. The output voltage range is 0.6V to 3.3V. Derating is necessary for certain VIN, VOUT, frequency 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. DC2230A-A has the option of choosing both internal and external compensation circuit for LTM4636. Tying the PHASMD pin to different voltage generates certain phase difference between MODE_PLLIN and CLKOUT. The LTM4636 data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC2230A-A.

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