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IRU3038CF from IOR,International Rectifier

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IRU3038CF

Manufacturer: IOR, IRF

14 Pin Synchronous PWM Controller in a 14 pin TSSOP package

Partnumber Manufacturer Quantity Availability
IRU3038CF IOR, IRF 451 In Stock

Description and Introduction

14 Pin Synchronous PWM Controller in a 14 pin TSSOP package The IRU3038CF is a step-down DC-DC converter manufactured by IOR (Integrated Operational Resources). Here are the specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** 0.8V to 25V (adjustable)  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 300kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** TO-263-5 (D²PAK)  

### **Descriptions:**  
- The IRU3038CF is a synchronous buck regulator designed for high-efficiency step-down voltage conversion.  
- It integrates both high-side and low-side MOSFETs for compact and efficient power management.  
- Suitable for applications requiring stable and adjustable DC voltage with high current capability.  

### **Features:**  
- **Integrated MOSFETs:** Reduces external component count.  
- **Adjustable Output:** Set via external resistors.  
- **Overcurrent Protection:** Prevents damage from excessive load.  
- **Thermal Shutdown:** Protects against overheating.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Wide Input Voltage Range:** Supports various power sources.  

For exact technical details, refer to the official datasheet from IOR.

Application Scenarios & Design Considerations

14 Pin Synchronous PWM Controller in a 14 pin TSSOP package

Alternative Part Number

  • LM3478MM --: Widely available low-side N-channel MOSFET controller with similar boost/flyback topology and current-mode control, suitable as a functional substitute.
  • UC3843AN --: Classic current-mode PWM controller in DIP-8 with comparable drive and compensation features, commonly used to replace older IOR controllers.
  • SG3524N --: General-purpose PWM controller with dual outputs and voltage-mode control, usable in many similar power supply designs when minor circuit adjustments are acceptable.
  • ISL6520ACBZ --: Single-phase synchronous buck PWM controller with similar voltage-mode architecture and SOIC-8 package; Intersil is the original design lineage for many IR controller parts, making this a close functional drop-in.
  • TPS5430DDA --: Widely available step-down converter with integrated switch, comparable input range and current capability; good substitute when the IRU3038CF controller-plus-external-FET design can be replaced by an integrated solution.
  • LM2678S-ADJ --: Simple switcher buck regulator in a similar power class with adjustable output; easy to source and well documented, suitable as a fallback replacement for the IRU3038CF in non-critical designs.

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