Hi Team,
below are several questions.
1. can TPS62843x support 2.2uH inductor? Or it can only support 1uH as datasheet mentioned. If it can support 2.2uH, will eff be improved?
2. If Vout is higher than Vin, that is, there is power supply on Vout, can TPS62843x support reverse block? I see the block that the body diode of HS FET should be from Vout to Vin, so it cannot block reverse current, right?
3. in datasheet, there is only Vout dc accuracy at PWM mode, what's the accuracy of PFM mode?
4. in datasheet, typical Iq is 275nA but max is 1500nA, my customer think it will be better to be below 1000nA max, just want to check how much margin of the max value in datasheet?
5. datasheet shows ripple @ 0.7V from light load to full load, is there test results for 1.8V @ 0- full load? Or if there is any test result on 1.8V on your hand, please kindly share.
Thanks.
BRs
Given