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The RT9203/A is a dual-output power controllers designed for high performance graphics cards and personal computers. The IC integrates a synchronous buck controller, a linear controller and protection functions into a small 8-pin package. The RT9203/A uses an internal compensated voltage mode PWM control for simplying design. An internal 0.8V reference allows the output voltage to be precisely regulated to meet low output voltage requirement. A fixed 300kHz oscillation frequency reduces the component size for saving board area. The RT9203/A also features over voltage protection (OVP) and under voltage lock-out (UVLO).
Operates at 5V
0.8V Internal Reference
Drives Two N-MOSFET
Voltage Mode PWM Control
Fast Transient Response
Fixed 300kHz Oscillator Frequency
Dynamic 0 to 100% Duty Cycle
Internal PWM Loop Compensation
Internal Soft-Start
Adaptive Non-Overlapping Gate Driver
Over-Voltage Protection Uses Lower MOSFET
RoHS Compliant and 100% Lead (Pb)-Free
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