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ISL6561CR

Manufacturer: INTERSIL

Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for VR10.X Application

Partnumber Manufacturer Quantity Availability
ISL6561CR INTERSIL 371 In Stock

Description and Introduction

Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for VR10.X Application The ISL6561CR 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:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 12V  
- **Output Voltage Range:** Adjustable down to 0.8V  
- **Switching Frequency:** 200kHz to 1MHz (adjustable)  
- **Maximum Duty Cycle:** 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Lead SOIC  

### **Descriptions:**
- The ISL6561CR is a high-performance, single-phase synchronous buck PWM controller designed for voltage regulator applications.  
- It supports precision voltage regulation for microprocessors, ASICs, and other low-voltage DC-DC power supplies.  
- The controller integrates MOSFET drivers and includes adaptive dead-time control for improved efficiency.  

### **Features:**
- **Precision Voltage Regulation:** ±1% accuracy over temperature and load conditions.  
- **Adjustable Switching Frequency:** Allows optimization for efficiency and component size.  
- **Integrated MOSFET Drivers:** Reduces external component count.  
- **Adaptive Dead-Time Control:** Enhances efficiency by minimizing body diode conduction.  
- **Overcurrent Protection:** Uses MOSFET RDS(ON) sensing for accurate current limiting.  
- **Power-Good Output:** Monitors output voltage status.  
- **Soft-Start Function:** Prevents inrush current during startup.  

This information is sourced from the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Multi-Phase PWM Controller with Precision Rds(on) or DCR Differential Current Sensing for VR10.X Application

Alternative Part Number

  • ADP3198JCPZ-RL --: Multiphase buck controller with similar VRM function and VID interface, suitable as a functional replacement in CPU power designs.
  • NCP5386BMNR2G --: Multiphase PWM controller for CPU/VRM applications with comparable feature set and control scheme.
  • L6714D --: Multiphase voltage regulator controller offering similar multiphase buck regulation for processor power rails.
  • ISL6561CRZ --: Same ISL6561 controller family in the same QFN package, Pb-free (Z) version; drop-in replacement with identical pinout and function.
  • ISL6566CRZ --: Intersil multi-phase PWM controller with similar VRM control features and comparable package, usable as a functional substitute with minor design review.
  • ADP3198JCPZ --: Analog Devices multi-phase buck controller offering similar VRM control functionality; requires pinout and layout verification but is a viable cross-vendor alternative.

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