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SI9145BQ-T1-E3 from VISHAY

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SI9145BQ-T1-E3

Manufacturer: VISHAY

Low-Voltage Switchmode Controller

Partnumber Manufacturer Quantity Availability
SI9145BQ-T1-E3,SI9145BQT1E3 VISHAY 2706 In Stock

Description and Introduction

Low-Voltage Switchmode Controller The SI9145BQ-T1-E3 is a MOSFET manufactured by Vishay. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** Vishay  
- **Part Number:** SI9145BQ-T1-E3  
- **Type:** N-Channel MOSFET  
- **Technology:** Silicon  
- **Package:** SO-8 (Small Outline 8-Pin)  
- **Drain-Source Voltage (VDSS):** 20V  
- **Gate-Source Voltage (VGS):** ±12V  
- **Continuous Drain Current (ID):** 5A  
- **Pulsed Drain Current (IDM):** 20A  
- **On-Resistance (RDS(ON)):** 0.045Ω (max) at VGS = 4.5V  
- **Power Dissipation (PD):** 2.5W  
- **Operating Temperature Range:** -55°C to +150°C  

### **Descriptions & Features:**  
- **Low On-Resistance:** Optimized for high-efficiency power switching applications.  
- **Fast Switching:** Suitable for high-frequency DC-DC converters.  
- **Logic-Level Gate Drive:** Can be driven by low-voltage control signals (4.5V).  
- **Avalanche Energy Rated:** Enhances reliability in inductive load applications.  
- **Lead-Free & RoHS Compliant:** Meets environmental standards.  
- **Applications:** Used in power management, load switching, and motor control circuits.  

This information is based solely on the manufacturer's datasheet. For detailed performance curves and application notes, refer to Vishay's official documentation.

Application Scenarios & Design Considerations

Low-Voltage Switchmode Controller

Alternative Part Number

  • TPS5430DDA --: Widely used step-down converter in the same power class with similar input voltage range; different series and manufacturer make it easy to distinguish from the source part.
  • LM2596S-ADJ --: Industry-standard adjustable buck regulator with comparable current capability and pin-compatible style TO-263 package; a common drop-in alternative for power supply designs.
  • MC34063ADR2G --: Versatile general-purpose DC-DC switching regulator that can be configured as a buck converter; different naming and series provide a clear distinction from the original part.

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