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IR3840WMTRPBF from IRF,International Rectifier

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IR3840WMTRPBF

Manufacturer: IRF, IR

Highly Efficient Integrated 12A Sync Buck Regulator

Partnumber Manufacturer Quantity Availability
IR3840WMTRPBF IRF, IR 42654 In Stock

Description and Introduction

Highly Efficient Integrated 12A Sync Buck Regulator The IR3840WMTRPBF is a synchronous buck regulator from Infineon Technologies (formerly International Rectifier). Here are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
- **IRF (International Rectifier, now part of Infineon Technologies)**

### **Specifications:**  
- **Topology:** Synchronous Buck Regulator  
- **Input Voltage Range:** 4.5V to 16V  
- **Output Voltage Range:** Adjustable (0.6V to 5.5V)  
- **Output Current:** Up to 40A  
- **Switching Frequency:** 300kHz to 1MHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Control Method:** Voltage Mode PWM  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 5x6mm PQFN (Power Quad Flat No-Lead)  

### **Descriptions & Features:**  
- **High Efficiency:** Optimized for low power loss with integrated MOSFET drivers.  
- **Adjustable Frequency:** Allows optimization for efficiency and component size.  
- **Integrated Power MOSFETs:** Reduces external component count.  
- **Programmable Soft-Start:** Prevents inrush current issues.  
- **Overcurrent Protection:** Includes cycle-by-cycle current limiting.  
- **Thermal Shutdown:** Protects against overheating.  
- **Voltage Tracking:** Supports sequencing with other rails.  
- **Applications:** Used in servers, telecom, networking, and industrial power supplies.  

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

Application Scenarios & Design Considerations

Highly Efficient Integrated 12A Sync Buck Regulator

Alternative Part Number

  • TPS53319DRCT --: Integrated synchronous buck regulator with similar current rating and voltage range, pin-compatible footprint in many designs and widely available.
  • LTM4620EV#PBF --: High-efficiency step-down module covering comparable input/output voltage and current, good drop-in for space-constrained POL designs.
  • SIC431ED-T1-GE3 --: Integrated power-stage buck regulator with similar switching frequency and current capability, suitable alternative when IR parts are unavailable.
  • TPS53319DRCR --: Integrated synchronous buck converter with similar current rating and voltage range, pin-compatible footprint family, widely available and well documented.
  • ISL62771IRTZ --: Multiphase PWM controller with integrated drivers, similar application space and electrical characteristics for CPU/GPU core power.

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