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).
Applications
- PC Motherboard
- Cable Modems, Set-Top-Box, and DSL Modems
- DSP and Core Communications Processor Supplies
- Memory Power Supplies
- Personal Computer Peripherals
- Industrial Power Supplies
- 5V Input DC-DC Regulators
- Low Voltage Distributed Power Supplies
- Graphic Cards