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BQ25570EVM-206: BQ25570EVM query

Part Number: BQ25570EVM-206


My customer test with BQ25570EVM, input 2.3V DC and connected a 470uF capacitor to Vstor.

After charging, the capacitor is 4.6v, and the Vout output is 3.3v (modified R10), but after the load is connected, the Vout output voltage is from 3.3v Down to 60mV, what is the reason?

Waiting for your reply.