LTC3896 negative converter

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shrk77

Joined Mar 27, 2021
1
Hello All,

I will be using the LTC 3896 as an dc/dc inverter. The end goal is to have 12V in and produce negative output voltage -12V. I make my own board like in attached schematic and board is not work. Following voltages can be measured: Vout 0V, DRVCC 10V, Bottom mosfet Q2 gate 10V, INTVCC 4.8V Please help.
 

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