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ISL6568

Manufacturer: INTERSIL

Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications

Partnumber Manufacturer Quantity Availability
ISL6568 INTERSIL 1309 In Stock

Description and Introduction

Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications The ISL6568 is a single-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:** 4.5V to 12V  
- **Output Voltage Range:** Adjustable down to 0.8V  
- **Switching Frequency:** Adjustable up to 1MHz  
- **Maximum Duty Cycle:** 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** 16-Lead QFN (Quad Flat No-Lead)  

### **Descriptions:**
- The ISL6568 is designed for **single-phase DC-DC voltage regulation**, commonly used in **CPU core voltage supplies** and **VRM (Voltage Regulator Module)** applications.  
- It integrates a **PWM controller with MOSFET drivers**, supporting synchronous buck converter topologies.  
- Features **adaptive voltage positioning (AVP)** for improved transient response.  
- Includes **overcurrent protection (OCP), overvoltage protection (OVP), and undervoltage lockout (UVLO)**.  

### **Features:**
- **Precision Voltage Regulation:** ±1% system accuracy over temperature.  
- **Adjustable Switching Frequency:** Allows optimization for efficiency and component size.  
- **Integrated MOSFET Drivers:** Reduces external component count.  
- **Differential Remote Voltage Sensing:** Ensures accurate output voltage regulation.  
- **Programmable Soft-Start:** Prevents inrush current at startup.  
- **Power-Good Output:** Monitors output voltage status.  
- **Thermal Shutdown Protection:** Safeguards against overheating.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications

Alternative Part Number

  • NCP5386 --: Single-phase synchronous buck controller with integrated gate drivers, functionally similar to the ISL6568 for CPU/VRM power stages.
  • ADP3198 --: Multiphase buck controller with comparable PWM and current-sense features, suitable as a design alternative in VRM applications.
  • TPS51620 --: Integrated-driver buck controller offering similar voltage regulation and protection functions for point-of-load power designs.
  • ADP3208 --: Multi-phase synchronous buck controller for processor power supplies, offering similar voltage regulation and current-sensing features as the ISL6568.

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