So just to clarify all points.
The original power supply builds have also got 1uF for C3. C4,C5,R3, are as per the datasheet In past builds and the current problematic builds.
Adding 27K across C5 on the new builds solves the problem.
Adding 27K across…
Part Number: TPS54528 Other Parts Discussed in Thread: TPS54628 Hello,
Could you help confirm if TPS54528 works in hic-cup mode when this convert enters OCP?
As we didn`t see any indication of hiccup protection as it in TPS54628 system diagram.
Thanks…
Other Parts Discussed in Thread: TPS54228 , TPS54429 , TPS54628 , TPS54229 , TPS54202 We have question about TPS54228 and TPS54429 and TPS54628.
Question 1.
UVLO is specified by VREG5.
Please tell us the minimum input voltage when UVLO operates.
We want to…
Part Number: TPS56428 Other Parts Discussed in Thread: TPS54628 Hi,
I am using TPS56428 to output 0.8V from 5V.
I see the output is higher than I expect.
After I check the VFB pin, it is 0.62V, not 0.6V.
Do you have any idea what will cause this?
…
Part Number: TPS50601-SP Other Parts Discussed in Thread: TPS50601A-SP , , TPS5450-EP , TPS65400-Q1 Could you tell me the technology of these parts:
TPS50601A-SP
TPS50601-SP
TPS5450-EP
TPS54628-Q1
TPS65400-Q1
Thanks
Munir
Hi Kristaps, This is normal because this device works in FCCM mode in light load condition. To decrease the idle power consumption, you need a device which can work in PSM mode in light load condition. For example, TPS54628, TPS56628, TPS568215, etc…