Product Overview
NCP81239MNTXG from onsemi is a multi-phase synchronous buck controller for desktop CPU VRM, supports 1-2 phases, serial VID interface, DCR current sensing. QFN-48.
Working Principle
Multi-phase VRM controller with serial VID (SVID) interface compatible with Intel VR12/VR12.5. Integrated power stage drivers. DCR or sense resistor current sensing. Per-phase current balancing. Load-line calibration. OCP, OVP, UVP protections.
Pin Description
| Pin Group | Function |
|---|---|
| SVID | Intel serial VID |
| PWM1-2 | Phase outputs |
| VSEN | Voltage sense |
| ISEN | Current sense |
Applications
- Desktop CPU VRM
- Intel VR12/VR12.5
- Server POL
Alternative Models
| Mfr | Part | Notes |
|---|---|---|
| onsemi | NCP81241MNTXG | 3-phase version |