DC1743A

电源管理IC开发工具 LTM4613EV Demo Board: Ultralow EMI, 36V, 8A Step-down Module Regulator

The demonstration board features LTM4613EV DC to DC µModule regulator. The LTM4613EV is a complete, ultralow noise, 8A switch mode DC to DC power supply. Included in the IC package are the switching controller, power FETs, inductor and all support components. The input voltage range is from 5V to 36V. The output voltage is jumper programmable from 3.3V to 12V with a rated load current of 8A. Derating is necessary for certain VIN, VOUT, frequency and thermal conditions. Only input and output capacitors are needed externally. The DC1743A offers the TRACK/SS pin allowing the user to program output tracking or soft start period. Output voltage margining can also be realized through jumper position selections. Higher efficiency at low load currents is achieved by setting the MODE pin jumper to DCM. The PLL pin is available to synchronize the LTM4613EV to an external clock.

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Default operating frequency of 600KHz at VOUT = 12V, 250KHz at VOUT = 5V and 165KHz at VOUT = 3.3V

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93% efficiency

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EN55022 class B compliant

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Low input and output referred noise

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Output voltage tracking and margining

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PLL frequency synchronization

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Power good tracks with margining

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Current foldback protection

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2% maximum total DC error

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Parallel/current sharing