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Q: TPS62260 Vin Iout efficency by 9312
He seeks clarification on specs for the TPS62260. Starting with page 3. The table states that for Vin = 2.0 - 2.3 V, Iout <= 150 mA . The on page 7, fig. 5: For Vin = 2.3 V, Iout > 300 mA for 80% efficiency. Can I use this part at Vin = 2 V with Iout = 300 mA but just poorer efficency (<80 %)? If yes, what would the efficiency actually be?
A: Re: TPS62260 Vin Iout efficency by 1090425
The spec on page 3 means that the IC is not guaranteed to be able to provide more than 150 mA output current at less than 2.3V in. It is not a matter of efficiency but the IC's capability at these very low Vins.
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