Overview
The NCP81111MNI3TXG is a high-performance digital single-output three-phase VR12.5-6 compatible buck controller designed by onsemi. This controller is optimized to operate at frequencies up to 5 MHz, making it suitable for Intel CPU applications. It can also function as a general-purpose I2C-controlled multiphase voltage regulator. The NCP81111 supports the NCP81163 digital phase doubler IC, enabling it to handle up to six phases for high current applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | QFN-32 (5x5) |
| Topology | Step-Down |
| Phases | 1/2/3 |
| Control Mode | Voltage Mode |
| VCC Min (V) | 4.75 |
| VCC Max (V) | 5.25 |
| fSW Typ (kHz) | 1000 - 5000 |
| Operating Frequency | Up to 5 MHz |
| Temperature Range | -40°C to 125°C |
| MSL Type | 1 |
| MSL Temp (°C) | 260 |
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
- General-purpose I2C-controlled multiphase voltage regulators
Q & A
- What is the NCP81111MNI3TXG used for?
The NCP81111MNI3TXG is a high-performance digital single-output three-phase VR12.5-6 compatible buck controller, primarily used for Intel CPU applications and general-purpose I2C-controlled multiphase voltage regulation.
- What is the operating frequency range of the NCP81111MNI3TXG?
The NCP81111MNI3TXG operates at frequencies up to 5 MHz.
- What package type does the NCP81111MNI3TXG come in?
The NCP81111MNI3TXG comes in a QFN-32 (5x5) package.
- What are the key features of the NCP81111MNI3TXG?
Key features include true differential voltage and current sensing, digital input voltage feed-forward, adaptive voltage positioning, and on-board EEPROM for user configuration.
- What applications is the NCP81111MNI3TXG suitable for?
The NCP81111MNI3TXG is suitable for Intel CPU applications, desktop PCs, notebook PCs, servers, and general-purpose I2C-controlled multiphase voltage regulators.
- Can the NCP81111MNI3TXG handle high current applications?
Yes, the NCP81111MNI3TXG can handle high current applications by supporting the NCP81163 digital phase doubler IC, which expands its capability to six phases.
- What is the voltage range for VCC?
The VCC range is from 4.75 V to 5.25 V.
- Does the NCP81111MNI3TXG support SVID and I2C interfaces?
Yes, the NCP81111MNI3TXG supports both SVID and I2C interfaces.
- What is the temperature range for the NCP81111MNI3TXG?
The operating temperature range is from -40°C to 125°C.
- How does the NCP81111MNI3TXG achieve current balancing?
The NCP81111MNI3TXG achieves current balancing through 'lossless' DCR current sensing.
