UC3550 controller equivalent, pwm/pfm switchable step-up dc-dc controller.
* Input Voltage Range：0.9~8V * Output Voltage Range：1.8~6V Programmable in 0.1V with High Accuracy ± 2.5% * High Efficiency 88% (Typ.) * Low Start-up Voltage of 0.9V Typi.
The UTC UC3550 series goes automatically into skip switching cycles under light load condition to maintain high efficie.
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