TPS62933: TI solution suggestion

Hi, Jimmy 

LTC3309B and LTC3311S are both LV product (Vin<7V). 

Suggest search alternative part in below link. 

https://www.ti.com/power-management/non-isolated-dc-dc-switching-regulators/step-down-buck/buck-converter-integrated-switch/products.html#p238min=1.5;3.3&p238max=3.3;7&p451max=6;7.99 

Hello Jimmy,

From a quick search it looks like TPS62867 is pretty comparable to LTC3309B  and the LM21215A is similar to  LTC3311S.

Both have lower switching frequencies than the other devices, but have similar input/output ratings.

You may want to check with the BSR-LV team for more recommendations as well.

Thanks,

Joseph