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IRU3034 from IRF,International Rectifier

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IRU3034

Manufacturer: IRF, IR, IOR

8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING

Partnumber Manufacturer Quantity Availability
IRU3034 IRF, IR, IOR 2577 In Stock

Description and Introduction

8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING The IRU3034 is a power management IC manufactured by International Rectifier (IRF). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** Adjustable from 0.8V to 25V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** Adjustable up to 1MHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** SOIC-8  

### **Descriptions:**  
- The IRU3034 is a synchronous buck regulator designed for high-efficiency step-down DC-DC conversion.  
- It integrates both high-side and low-side MOSFETs for compact power supply solutions.  
- Suitable for a wide range of applications, including industrial, automotive, and computing systems.  

### **Features:**  
- **Integrated MOSFETs:** Reduces external component count.  
- **Adjustable Output Voltage:** Via external resistor divider.  
- **Adjustable Switching Frequency:** Allows optimization for efficiency and component size.  
- **Overcurrent Protection (OCP):** Prevents damage during overload conditions.  
- **Thermal Shutdown:** Protects the IC from overheating.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  

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

Application Scenarios & Design Considerations

8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING

Alternative Part Number

  • LM3485MM --: Simple buck controller in the same low-pin-count controller class; widely available and easy to source as a functional substitute for IRU3034-based designs.
  • MAX1775EEE --: Step-down controller with comparable input range and gate drive capability, suitable as a cross-manufacturer alternative when layout is adjusted.
  • NCP1587DR2G --: Synchronous buck controller offering similar voltage-mode control and current handling, providing a cost-effective alternate source.
  • LM3489 --: Widely used synchronous buck controller with comparable input range and gate drive, easy drop-in for many IRU3034 designs.
  • ISL6520 --: Single-phase synchronous buck PWM controller with similar voltage-mode control and 5V/12V operation, good functional match.
  • NCP1587 --: Low-cost synchronous buck controller with comparable switching frequency and drive capability, suitable alternative when exact IR part is unavailable.
  • TPS40170 --: Modern synchronous buck controller offering similar input range and programmable switching frequency, with better efficiency and documentation support.
  • ISL6545 --: Single-phase synchronous buck PWM controller with similar functionality and pin-compatible footprint options for legacy IRU3034 applications.

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