Datasheet Details
| Part number | IR3581 |
|---|---|
| Manufacturer | International Rectifier (now Infineon) |
| File Size | 251.57 KB |
| Description | Dual Output Digital Multi-Phase Controller |
| Datasheet |
 IR3581 Datasheet
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General Description
The IR3581 is a dual-loop digital multi-phase buck controller designed for CPU voltage regulation, and is fully compliant with Intel® VR12 and compliant with VR12.5 Rev 1.3 PWM specifications.
Key Features
- Ultra Low Quiescent Power Dual output 6+1 phase PWM Controller.
- Intel® VR12, VR12.5 & Memory VR modes.
- Overclocking & Gaming Modes.
- PVI GPU VR mode.
- Switching frequency from 194kHz to 2MHz per phase in 56 steps.
- IR Efficiency Shaping Features including Variable Gate Drive, Dynamic Phase Control and Automatic Power State Switching.
- Programmable 1-phase or 2-phase operation for Light Loads and Active Diode Emulation for Very Light Loads.
- IR Adaptive Transie.