Overview
The NCP81111MNI0TXG is a high-performance digital single-output three-phase VR12.5-6 compatible buck controller developed by onsemi. This controller is optimized for Intel CPU applications and can operate at frequencies up to 5 MHz. It also functions as a general-purpose I2C-controlled multiphase voltage regulator. The NCP81111 is designed to support the NCP81163 digital phase doubler IC, which can expand its capability to 6 phases for high current handling.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | QFN-32 (5x5) |
| Control Mode | Voltage Mode |
| Number of Phases | 1/2/3 |
| Input Voltage Range (VCC) | 4.75 - 5.25 V |
| Switching Frequency Range | 1000 - 5000 kHz (up to 5 MHz) |
| Topology | Step-Down |
| Operating Temperature Range | -40°C to 125°C (junction temperature) |
| Lead Finish | Pb-free |
| Moisture Sensitivity Level (MSL) | 1 |
Key Features
- True differential voltage sensing and differential current sensing
- Digital input voltage feed-forward and DAC feed-forward
- Adaptive voltage positioning
- On-board EEPROM for user configuration
- High-performance digital architecture
- Dynamic reference injection
- Fully differential voltage and current sense amplifiers
- 'Lossless' DCR current sensing for current balancing
- Thermally compensated inductor current sensing for droop
- User-adjustable internal compensation
Applications
- Intel CPU applications
- Desktop PCs
- Notebook PCs
- Servers
Q & A
- What is the NCP81111MNI0TXG used for? The NCP81111MNI0TXG is used as a high-performance digital single-output three-phase VR12.5-6 compatible buck controller for Intel CPU applications.
- What is the maximum switching frequency of the NCP81111MNI0TXG? The maximum switching frequency is up to 5 MHz.
- What package type does the NCP81111MNI0TXG come in? It comes in a QFN-32 (5x5) package.
- What are the key sensing features of the NCP81111MNI0TXG? It includes true differential voltage sensing, differential current sensing, and 'lossless' DCR current sensing.
- Can the NCP81111MNI0TXG be expanded to more phases? Yes, it can be expanded to 6 phases using the NCP81163 digital phase doubler IC.
- What is the input voltage range for the NCP81111MNI0TXG? The input voltage range is 4.75 - 5.25 V.
- What are some of the applications of the NCP81111MNI0TXG? It is used in desktop PCs, notebook PCs, and servers.
- Does the NCP81111MNI0TXG support I2C interface? Yes, it supports I2C interface for general-purpose multiphase voltage regulation.
- What is the topology of the NCP81111MNI0TXG? It is a step-down (buck) topology.
- Is the NCP81111MNI0TXG Pb-free? Yes, it is Pb-free.
