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IR3638S from IOR,International Rectifier

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IR3638S

Manufacturer: IOR, IR

High Frequency Synchronous PWM Controller for Tracking Applications.

Partnumber Manufacturer Quantity Availability
IR3638S IOR, IR 227 In Stock

Description and Introduction

High Frequency Synchronous PWM Controller for Tracking Applications. The IR3638S is a power MOSFET manufactured by International Rectifier (IR). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Manufacturer:**  
International Rectifier (IR)  

### **Part Number:**  
IR3638S  

### **Specifications:**  
- **Type:** N-Channel Power MOSFET  
- **Drain-Source Voltage (VDSS):** 30V  
- **Continuous Drain Current (ID):** 140A  
- **Pulsed Drain Current (IDM):** 560A  
- **Power Dissipation (PD):** 300W  
- **Gate-Source Voltage (VGS):** ±20V  
- **On-Resistance (RDS(on)):** 1.8mΩ (max) at VGS = 10V  
- **Threshold Voltage (VGS(th)):** 1V (min), 2V (max)  
- **Input Capacitance (Ciss):** 5400pF  
- **Output Capacitance (Coss):** 1600pF  
- **Reverse Transfer Capacitance (Crss):** 300pF  
- **Turn-On Delay Time (td(on)):** 13ns  
- **Turn-Off Delay Time (td(off)):** 49ns  
- **Operating Temperature Range:** -55°C to +175°C  

### **Package:**  
TO-263 (D2PAK)  

### **Features:**  
- **Low On-Resistance:** Optimized for high-efficiency power switching.  
- **High Current Handling:** Supports up to 140A continuous drain current.  
- **Fast Switching Speed:** Suitable for high-frequency applications.  
- **Avalanche Energy Rated:** Robust against inductive load switching.  
- **Lead-Free & RoHS Compliant:** Environmentally friendly design.  

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

Application Scenarios & Design Considerations

High Frequency Synchronous PWM Controller for Tracking Applications.

Alternative Part Number

  • TPS54331DR --: Widely available 3A step-down converter in SOIC-8 with similar input range and function, easy drop-in for many IR3638S designs.
  • MP1584EN --: Compact 3A synchronous buck regulator with comparable voltage rating and low external component count, good cost-effective substitute.
  • LM2596S-ADJ --: Robust adjustable buck regulator with higher current capability and broad availability, suitable when board space allows a larger footprint.
  • TPS54331 --: Widely available 3A step-down converter with similar input range and function, commonly used as a cross for IR3638S.
  • MP1584 --: Compact 3A synchronous buck regulator with comparable voltage and current ratings, suitable drop-in functional replacement.
  • LM2596 --: Mature 3A step-down regulator with broad availability and similar electrical characteristics, though switching frequency differs.

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