Other Parts Discussed in Thread: TPSM82913
I want to synchronize both ICs with the same external clock signal. LM25576 Vin = 7v, Vout = -12v, TPSM82913 Vin =7v Vout = 5v.
I want to try in practice but doesnt work.
Please help.
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Hello,
Thank you for your question. Please attach a layout and schematic as well as the current way you are attempting to synchronize both ICs to the same clock so that we may better assist you.
Joshua Austria
Hi,
Sorry for delay, here my schematic and layout file. Please help me. https://drive.google.com/drive/folders/1KdJ72Cmp5Jy25KD4hIzSK6L2y76kiSW7?usp=sharing
Hello,
Can you please send these as a screenshot or a pdf? It is not letting me download/open these documents.
Thank you,
Joshua Austria
Hello,
Thank you. In order to use the SYNC pin with a buck turned into an inverting buck boost, a level shifter is required. This is due to the relocation of the ground potential of the device. Please see section 7.2 of this application note for more details.
Thank you,
Joshua Austria