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The LTC3536 is an extended VIN range, fixed frequency, synchronous buck-boost DC/DC converter that operates from input voltages above, below or equal to...
LTC3536 on Analog.com
DS is ok for 3V3 output design but 5V design is limited to Vin 4v2-5v5.
I need to do Vin 3V-4V2 and Vout 5V@700mA.
Thanks for your help.