DC1663A

LTM4628EV DC to DC Converter and Switching Regulator Chip 1.182VDC to 1.218VDC/1.4775VDC to 1.5225VDC Output Demonstration Circuit

The demonstration board features LTM4628EV high efficiency, high density DC to DC µModule regulator. The LTM4628EV is a complete dual 8A output switching mode DC to DC power supply and can be easily configured to provide a single two phase 16A output. Included in the IC package are the switching controller, power FETs, inductor and all supporting components. The input voltage is from 4.5V to 26.5V. The output voltage is programmable from 0.6V to 5.5V. 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 jumper selects pulse skipping mode for noise sensitive applications or burst mode operation in less noise sensitive applications.

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Default Operating Frequency of 400KHz

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External clock synchronous frequency range from 400KHz to 780KHz

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87.7% channel 1 efficiency

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85.5% channel 2 efficiency

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±1.5% total DC output error

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Differential remote sense amplifier

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Current mode control/fast transient response

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Adjustable switching frequency

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Overcurrent foldback protection

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Multiphase parallel current sharing with multiple LTM4628s