Category: Datasheet/Specs
Product Number: LTM8048
Hi,
I am using LTM8048 component to generate an isolated 12VDC power rail from an input 12VDC +/- 5% power rail. Based on Table 1b of the datasheet I am using the configuration of
- Vin = 9-15V
- Vout1 = 13V
- Vout2 = 12V
Based on the datasheet Vout1 should have a minimum load, so i connected on the output of Vout1 a bleeding resistor of 1kOhm.
My questions are:
- Vout2 needs also a bleeding resistor in case there is not load in its output?
- If yes, can I connect only in the Vout2 a bleeding resistor of 1kΩ, due to Vout1 is the input of the internal LDO, and the current will be the same for both Vout1 and Vout2?
- I observe that when I connect the minimum load at Vout1 and run the simulation at LTSpice, then the output is getting higher than 13VDC (near 16VDC), why this is happens? Due to semi-regulation of flybacks output? Is this correct operation or is something with stability?
The Vout1 is not needed in my design. I want to use only Vout2.
Thank you