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The RT8110B is a compact fixed-frequency PWM controller with integrated MOSFET drivers for single power rail synchronous single-phase buck converter. This part features an internal regulator that allows wide input voltage range operation. The RT8110B utilizes voltage-mode control with internal compensation to simplify the converter design. An internal 0.8V reference voltage allows low output voltage application. The switching frequency is fixed at 400kHz to reduce the external passive component size to save board space. The RT8110B provides under voltage protection, current limit, over current protection and over temperature protection. The low-side MOSFET RDS(ON) is used to sense the inductor current for over current protection.
10V to 28V Wide Input Voltage Range
0.8V Internal Reference
Internal Soft Start
High DC Gain Voltage Mode PWM Control
Fixed 400kHz Switching Frequency
Fast Transient Response
Fully Dynamic 0 to 80% Duty Cycle
Over Current Protection
Under Voltage Protection
Over Temperature Protection
Tiny Package TSOT-23-8
RoHS Compliant and Halogen Free
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