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IRU3034CS

Manufacturer: IR, IOR

8 Pin PWM Switcher CIC with Current Limiting in a 8-Pin SOIC(NB) package

Partnumber Manufacturer Quantity Availability
IRU3034CS IR, IOR 4213 In Stock

Description and Introduction

8 Pin PWM Switcher CIC with Current Limiting in a 8-Pin SOIC(NB) package The part **IRU3034CS** is a synchronous buck converter IC manufactured by **IOR (Integrated Operational Research)**. Below are the specifications, descriptions, and features based on available knowledge:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 21V  
- **Output Voltage Range:** Adjustable from 0.8V to 18V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOP-8  

### **Descriptions:**  
The **IRU3034CS** is a high-efficiency, synchronous step-down DC-DC converter designed for applications requiring high performance in a compact form factor. It integrates low-side and high-side MOSFETs, reducing external component count.  

### **Features:**  
- **Integrated Power MOSFETs** (Low RDS(ON))  
- **Adjustable Output Voltage** via external resistors  
- **Internal Soft-Start** to limit inrush current  
- **Over-Current Protection (OCP)**  
- **Thermal Shutdown Protection**  
- **Under-Voltage Lockout (UVLO)**  
- **Stable with Low-ESR Ceramic Capacitors**  

This information is based on publicly available datasheets and manufacturer documentation. For precise application details, consult the official **IOR datasheet**.

Application Scenarios & Design Considerations

8 Pin PWM Switcher CIC with Current Limiting in a 8-Pin SOIC(NB) package

Alternative Part Number

  • LM3485MM --: Simple buck controller in an MSOP package that can replace the IRU3034 in many low-current step-down designs with minor component value changes.
  • TPS5430DDA --: Integrated-switch 3A step-down converter offering a simpler single-chip solution than the IRU3034 controller plus external MOSFET.
  • MC34063A --: Widely available general-purpose DC-DC controller usable as a low-cost drop-in style substitute for basic buck regulation where performance demands are modest.
  • LM3489MM --: Pin-compatible synchronous buck controller with similar voltage-mode architecture and current-sense scheme, widely available and well documented.
  • MAX1632CAI --: Dual-output step-down controller covering comparable input/output ranges, suitable as a functional substitute in similar power-supply designs.
  • TPS40057PWPR --: Wide-input synchronous buck controller with adjustable frequency and current limiting, offering similar control functionality for replacement designs.
  • SC1161CS --: Synchronous buck controller with similar input range and drive capability, suitable as a functional replacement with minor layout review.

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