Category: Hardware
Product Number: LT8705HFE, LT8705
I am designing a DCDC buck-boost converter using LT8705H.
The circuit configuration is as follows.
I'm designing a 28V input with two channels of +15VDC and one channel of -15VDC output.
There are no issues with the outputs, but when connected as shown below, the -15VDC output does not occur.
However, when the input voltage is varied by 2-3V while ON, or when the input is turned OFF and then immediately turned ON, the output is -15VDC.
I'm using the LT8705.
I've read the datasheet, but I can't find the cause of the problem. I'd appreciate your feedback and suggestions for a solution.
Current testing is being done under no-load conditions.