I want to use two ADP1621 for a +/-13V power supply
One in Sepic Mode (+13V), the other in Cuk Mode (-13V)
As, in the datasheet described, i fed in the external clock (500kHz, 0 to 5V=Vin, 50%DutyCyle)
by Pin: SDSN. But in LTSpice Simulator the Controller doesnt't work. Always off....
When i pull up the SDSN Pin (without clock) everything is fine.
-) Is there anywhere an example or application note about synchronisation
-) Is perhaps the LTSpice Model corrupted
here is my Spice circuit
Thanx for your help