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SI-3090C from SANKEN

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SI-3090C

Manufacturer: SANKEN, SK

5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type

Partnumber Manufacturer Quantity Availability
SI-3090C,SI3090C SANKEN, SK 8900 In Stock

Description and Introduction

5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type Here are the factual details about part SI-3090C from the manufacturer SANKEN:

### **Specifications:**  
- **Part Number:** SI-3090C  
- **Manufacturer:** SANKEN  
- **Type:** Switching Regulator IC  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Voltage:** Adjustable (depends on external components)  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 100kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** TO-220 (5-pin)  

### **Descriptions:**  
- The SI-3090C is a step-down (buck) switching regulator IC designed for high-efficiency power conversion.  
- It integrates a power MOSFET and control circuitry, reducing the need for external components.  
- Suitable for industrial, automotive, and consumer electronics applications.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4.5V to 40V input.  
- **High Output Current:** Capable of delivering up to 3A.  
- **Built-in Protection:** Includes overcurrent protection (OCP) and thermal shutdown (TSD).  
- **Adjustable Output Voltage:** Configured via external resistors.  
- **Compact Design:** Integrated MOSFET simplifies PCB layout.  
- **Low Standby Current:** Improves efficiency in light-load conditions.  

For exact application details, refer to the official SANKEN datasheet.

Application Scenarios & Design Considerations

5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type

Alternative Part Number

  • L4970A --: Monolithic step-down switching regulator in a similar power class, widely available and well documented as a functional substitute for Sanken SI-3090 series regulators.
  • LM2596S-ADJ --: Adjustable buck regulator with comparable current capability and simple external component requirements, suitable as a drop-in style replacement in many SI-3090C applications.
  • MC34063A --: Versatile general-purpose DC-DC switching regulator IC that can be configured to match the SI-3090C function, with broad availability and low cost.
  • L3090C --: Same manufacturer and same 3090C series with similar electrical characteristics, making it a close drop-in replacement.
  • K3090C --: Same SK 3090C family with comparable ratings and pinout, suitable as a secondary substitute.
  • 2SC3090 --: Industry-standard 3090-series transistor with similar voltage and current ratings, usable as a cross-manufacturer alternative.

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