RT9221 Overview
Key Specifications
Description
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 circuits on motherboards.
Key Features
- N-MOSFET Driver for High Efficiency Switching Section
- Power-good, Over-voltage, and Current- limiting Protection for Switching Section z 1.5V and 2.5V Fixed Output Voltage for Linear Section
- Linear Section Uses Low Cost NPN Transistor as Power Device
- TTL-compatible 5-bit DAC Core Output Voltage
