JAJSG02D August 2012 – August 2018 LMZ21700
PRODUCTION DATA.
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The input supply must be able to supply the required input current to the LMZ21700 converter. The required input current depends on the application's minimum required input voltage (VIN-MIN), the required output power (VOUT x IOUT-MAX), and the converter efficiency (η).
IIN = VOUT x IOUT-MAX / (VIN-MIN x η)
For example, for a design with 10 V minimum input voltage, 5 V output, and 0.5 A maximum load, considering 90 % conversion efficiency, the required input current is 0.278 A.