Part Number: TPS65130
I used below circuit to generate +/-12V from a +5V supply. When VIN=5V/1A, VNEG=-11.7V, but VPOS=4.6V. What could be wrong?
In reply to Cindy Wei:
In reply to Diaara:
Thanks for your reply. I measured below components on board.
* R3_1 = 264Kohm
* R4_1 = 119Kohm
* R11_1 = 0ohm
I don't know whether the mismatch was caused by TPS65130. Should they be close to the component values?
When ENP=3V, FBP = 0.47V. Below are the start up waveforms of INP and FBP.
CP stays at 0V during the start up.
Attached is BOM.
In reply to Brigitte:
In reply to Ilona:
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