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The RT8105A is a synchronous buck PWM controller with embedded MOSFET gate drivers. This part operates with 5V/12V supply voltage, has fixed 300kHz switching frequency, and utilizes voltage mode control. The feedback control loop is compensated internally to simplify the converter design.The RT8105A provides enable/disable function to support power sequence control. This device also provides full fault protection functions to protect the load. This part uses lossless low side MOSFET RDS(ON) current sense technique for over current protection with adjustable threshold. Other features include internal soft-start and VIN detection function.
5V or 12V Supply Voltage
Embedded Non-Overlapping N-MOSFET Driver
300kHz Fixed Switching Frequency
Internal Control Loop Compensation
Enable/Disable Control
Full 0 to 100% Duty Ratio
Low Side MOSFET RDS(ON) Current Sense
Adjustable Over Current Protection with Improved Noise Immunity
Full-Time Over Voltage Protection
Fast Transient Response
Internal Soft-Start
RoHS Compliant and Halogen Free
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