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IRU3048 from IR,International Rectifier

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IRU3048

Manufacturer: IR, IOR

Dual Synchronous PWM Controller with Current sharing Circuitry and LDO Controller

Partnumber Manufacturer Quantity Availability
IRU3048 IR, IOR 1944 In Stock

Description and Introduction

Dual Synchronous PWM Controller with Current sharing Circuitry and LDO Controller The IRU3048 is a power management integrated circuit (PMIC) manufactured by International Rectifier (IR). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Manufacturer:**  
- **International Rectifier (IR)**  

### **IRU3048 Specifications:**  
- **Function:** Multi-phase PWM controller  
- **Application:** Voltage regulation for high-performance processors and graphics cards  
- **Input Voltage Range:** Typically supports wide input voltage ranges (exact range depends on configuration)  
- **Output Voltage:** Adjustable via external resistors  
- **Switching Frequency:** Programmable (exact range depends on configuration)  
- **Phases:** Supports multi-phase operation (number of phases depends on design)  
- **Control Method:** Voltage-mode or current-mode control (implementation-specific)  
- **Protection Features:** Over-voltage protection (OVP), under-voltage protection (UVP), over-current protection (OCP), and thermal shutdown  

### **Descriptions and Features:**  
- **Multi-Phase Architecture:** Enables efficient power delivery for high-current applications.  
- **Precision Voltage Regulation:** Provides tight output voltage tolerances for sensitive loads.  
- **Dynamic Phase Control:** Adjusts the number of active phases based on load conditions to improve efficiency.  
- **Programmable Parameters:** Allows customization of switching frequency, soft-start timing, and protection thresholds.  
- **Integrated Drivers:** Some variants may include gate drivers for MOSFETs.  
- **Thermal Management:** Includes thermal monitoring and shutdown to prevent overheating.  

For exact electrical characteristics and application details, refer to the official **IRU3048 datasheet** from International Rectifier (IR).

Application Scenarios & Design Considerations

Dual Synchronous PWM Controller with Current sharing Circuitry and LDO Controller

Alternative Part Number

  • LM2743 --: Synchronous buck controller with similar voltage-mode architecture and external MOSFET drive, widely available and well documented as a functional substitute for IRU3048 designs.
  • ISL6520 --: Single-phase synchronous buck PWM controller with comparable feedback and gate-drive features, often used as a drop-in alternative in point-of-load regulator designs.
  • TPS40057 --: Wide-input synchronous buck controller offering similar control loop and protection functions, suitable for replacing IRU3048 in DC-DC converter applications.
  • TPS5430 --: Step-down converter controller with comparable input range and current capability, suitable for similar power supply applications.
  • LM2678 --: Simple switcher buck regulator offering similar voltage and current ratings, usable as a functional substitute in many IRU3048 circuits.

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