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IRU3055CQ from IR,International Rectifier

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IRU3055CQ

Manufacturer: IR, IOR

5 Bit Prog 3-Phase SynchBuck CIC
Partnumber Manufacturer Quantity Availability
IRU3055CQ IR, IOR 5211 In Stock

Description and Introduction

5 Bit Prog 3-Phase SynchBuck CIC The IRU3055CQ is a power management IC (PMIC) manufactured by IOR (Integrated Operational Research). Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
- **IOR (Integrated Operational Research)**  

### **Part Number:**  
- **IRU3055CQ**  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage:** Adjustable (typically 0.8V to 24V)  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 300kHz to 2.2MHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** QFN (Quad Flat No-Lead)  

### **Descriptions:**  
- A high-efficiency, synchronous step-down DC-DC converter.  
- Designed for applications requiring precise voltage regulation and high current output.  
- Features pulse-width modulation (PWM) control for stable performance.  

### **Features:**  
- **Adjustable Output Voltage** – Supports a wide range of output voltages via external resistors.  
- **Synchronous Rectification** – Improves efficiency and reduces power loss.  
- **Soft-Start Function** – Prevents inrush current during startup.  
- **Overcurrent & Overtemperature Protection** – Enhances reliability under fault conditions.  
- **Adjustable Switching Frequency** – Allows optimization for noise and efficiency.  
- **Low Dropout Operation** – Maintains regulation even when input voltage is close to output.  

This information is strictly based on the available knowledge base for the **IRU3055CQ** by **IOR**.

Application Scenarios & Design Considerations

5 Bit Prog 3-Phase SynchBuck CIC

Alternative Part Number

  • LTC3735EG --: Single-phase synchronous buck controller with integrated drivers, similar function and package class, widely available and well documented.
  • ISL6566CRZ --: Multi-phase PWM buck controller for CPU/VRM rails, comparable feature set and QFN package, good drop-in candidate for IRU3055 designs.
  • NCP5386MNR2G --: Two-phase buck controller with integrated gate drivers, similar voltage-mode control and QFN footprint, suitable replacement when re-layout is acceptable.
  • SC1403CQ --: Pin-compatible synchronous buck controller in the same QSOP-style package with comparable input voltage range and gate drive, suitable as a direct functional replacement.
  • ISL6520ACBZ --: Single-phase synchronous buck PWM controller with comparable voltage-mode control and MOSFET drive, usable for lower-current versions of the same application.

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