RT9221 converter equivalent, programmable synchronous pwm buck converter.
z Provides 3 Regulated Voltages z N-MOSFET Driver for High Efficiency
Switching Section z Power-good, Over-voltage, and Current-
limiting Protection for Switching Section.
z Power Supply for Pentium, Pentium ProTM, Pentium IITM, Power PCTM, K6TM, 6×86TM, and AlphaTM Microprocessors
z High-po.
The RT9221 integrates a PWM controller and two low-dropout linear regulators into a single chip. The PWM controller provides the CPU core voltage controlled by a 5-bit DAC and the linear section regulates power for GTL bus, clock driver or other cir.
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