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Part Number: TPS7B4250-Q1
If a voltage is applied to the output of the TPS7B4250-Q1 when there is no power applied to the input, how much leakage current can be expected to flow through the chip? Say, for example, 18V on the output.
I think that because the device has back-to-back FET inside the device, the leakage should be minimal, but has it ever been tested?
The current flow back to VIN is low (less than 5 uA, see data sheet spec.), however, there is still current that flows to the GND of the device when VOUT is raised. We measured approximately 70 uA into the OUT pin @ 12 V, and 210 uA at 18 V.
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