Part Number: LM25118
My customer used this device in their system but they need support Vin voltage low to 3.5V.
But currently they found when input voltage is lower than 4V, our device will be off.
Below is their circuit and please advise which portion we need to modify.
The device needs an initial startup voltage of 5V. Otherwise the voltage on VCC might not rise above the UVLO threshold of 3.7V typically.
For more information on buck-boost devices have a look at www.ti.com/buckboost
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