Dual PWM Controller Powering AMD SVI Split-Plane Processors The ISL6329 is a multi-phase PWM controller manufactured by **INTERSIL** (now part of **Renesas Electronics**). Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:
### **Specifications:**
- **Input Voltage Range:** Supports **4.5V to 5.5V** for the VCC supply.
- **Output Voltage Range:** Adjustable from **0.5V to 1.6V** (for CPU/GPU core voltage regulation).
- **Number of Phases:** Configurable for **1 to 4 phases**.
- **Switching Frequency:** Adjustable from **200kHz to 1MHz** per phase.
- **Duty Cycle Range:** Up to **100%**.
- **Current Sensing:** Uses **inductor DCR or resistor sensing** for per-phase current balancing.
- **Efficiency Optimization:** Supports **Diode Emulation Mode (DEM)** for light-load efficiency.
- **Protection Features:**
- Overvoltage (OVP)
- Undervoltage (UVP)
- Overcurrent (OCP)
- Thermal shutdown
### **Descriptions:**
- The **ISL6329** is a **synchronous buck PWM controller** designed for **high-performance voltage regulation** in **CPU/GPU power supplies**.
- It provides **adaptive phase shedding** to improve efficiency across load conditions.
- The controller supports **dynamic VID (Voltage Identification) changes** for Intel and AMD processors.
- It integrates **MOSFET drivers** and provides **precise voltage regulation** with differential sensing.
### **Features:**
1. **Multi-Phase Operation:** Supports **1 to 4 phases** for scalable power delivery.
2. **Adaptive Phase Control:** Automatically adjusts active phases for optimal efficiency.
3. **Precision Voltage Regulation:** Uses **differential remote voltage sensing** for accuracy.
4. **Dynamic VID Support:** Compatible with **IMVP-6.5 (Intel) and AMD SVI specifications**.
5. **Programmable Switching Frequency:** Adjustable from **200kHz to 1MHz**.
6. **Diode Emulation Mode (DEM):** Enhances light-load efficiency.
7. **Integrated MOSFET Drivers:** Reduces external component count.
8. **Fault Protection:** Includes **OVP, UVP, OCP, and thermal shutdown**.
9. **Current Balancing:** Ensures even load distribution across phases.
This information is strictly based on the manufacturer's datasheet and technical documentation.
