TPSM843620: TPSM843620 soldering and 12V to 5V

Is the device configured to switch at 2.2MHz or 1.5MHz.  If not, the 12V to 5V will have a large ripple current and device maybe exceeding hs current limit or sinking current limit.   do you have a schematic or oscilloscope plots. 

Hi Sir,

• The device is configured to 1MHZ.

Hi Sir,

Thanks for your reply. By using the feedback resistors of values 10k and 1k, we are able to get our desired output of 5v, when we connect it to 5 W load, the voltage is getting dropped and getting 3v. Is there any reason for that. 

What are you testing a TI evm or a board you have developed?

If you are testing a board you developed, can you share schematic,  board layout and

oscilloscope plots of the output voltage, input voltage, sw pin if you have access. 

 If there is no access to sw pin, if you can capture the output ripple  (ac coupled) with a scope probe, similar figure 7-16 in datasheet 

If you are testing a TI EVM, can you share the boards setting and other modifications. 

Can you use a constant resistance or constant current mode on the eload and test.   In constant power mode,

i think the current limit draw may be changing with the voltage.