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Analog Devices Switching Regulator: For the LTM4677, is it possible to set the output voltage via an external pin instead of a register setting?
Voltage setting by external resistors in LTM4677 is possible by external resistor values of VOUTnCFG and VTRIMnCFG pins.
At this time, the register MFR_CONFIG_ALL[6] = 0b is required, but the default value is MFR_CONFIG_ALL[6] = 0b.
At this time, the VOUTnCFG pin determines a rough voltage value and the VTRIMnCFG pin adjusts it. Please refer to Tables 2 and 3 on page 48 of the data sheet for this combination.
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