JAJSG02D August 2012 – August 2018 LMZ21700
PRODUCTION DATA.
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Once the load current decreases and the valley of the inductor current reaches 0 A, the LMZ21700 will transition to Power Save Mode of operation. The device will remain in PSM as long as the inductor current is discontinuous. The switching frequency will decrease linearly with the load current. If VIN decreases to about 15 % above VOUT the device will not enter PSM and will maintain output regulation in PWM mode.