Datasheet Details
| Part number | RT9228 |
|---|---|
| Manufacturer | Richtek |
| File Size | 118.60 KB |
| Description | Advanced PWM and Dual Fixed Linear Power Controller |
| Datasheet |
 RT9228 Datasheet
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General Description
The RT9228 is a 3-in-one power controller optimized for high-performance microprocessor and computer applications.
The IC integrates a synchronous buck PWM controller, a linear regulator, and a linear controller as well as monitoring and protection functions into a 24-pin SOP package.
Key Features
- an Intel-compatible, TTL 5-bit programmable DAC that adjusts the core voltage from 2.1V to 3.5V in 0.1V increments and from 1.3V to 2.05V in 0.05V steps. The 5-bit DAC has a typical ±1% tolerance. The linear regulator uses an internal drive device to provide 2.5V ±2.5% output voltage. The linear controller drives an external N-Channel MOSFET or a low cost NPN bipolar transistor to provide 1.5V ±2.5%. The RT9228 monitors all the output voltages. A Powergood signal is issued when the core voltage.