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SI-3122V from SANKEN

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SI-3122V

Manufacturer: SANKEN, SK

LOW-VOLTAGE, HIGH-CURRENT 1.8 V LINEAR REGULATOR

Partnumber Manufacturer Quantity Availability
SI-3122V,SI3122V SANKEN, SK 12547 In Stock

Description and Introduction

LOW-VOLTAGE, HIGH-CURRENT 1.8 V LINEAR REGULATOR Here are the factual details about part SI-3122V from the manufacturer SANKEN:

### **Specifications:**  
- **Manufacturer:** SANKEN  
- **Part Number:** SI-3122V  
- **Type:** Switching Regulator IC  
- **Output Voltage:** Adjustable  
- **Output Current:** Up to 3A  
- **Input Voltage Range:** 4.5V to 32V  
- **Switching Frequency:** 300kHz (typical)  
- **Efficiency:** High efficiency (exact value depends on application conditions)  
- **Package:** TO-263-5L (D2PAK)  
- **Operating Temperature Range:** -40°C to +105°C  
- **Protection Features:** Overcurrent protection (OCP), thermal shutdown (TSD), under-voltage lockout (UVLO)  

### **Descriptions and Features:**  
- **Voltage Mode Control:** Provides stable output voltage regulation.  
- **Built-in MOSFET:** Includes an integrated power MOSFET for compact design.  
- **Adjustable Output:** Output voltage can be set using external resistors.  
- **Low Standby Current:** Enhances efficiency in light-load conditions.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Compact Package:** Suitable for space-constrained applications.  
- **Applications:** Used in power supplies, industrial equipment, automotive systems, and consumer electronics.  

For exact performance characteristics, refer to the official SANKEN datasheet.

Application Scenarios & Design Considerations

LOW-VOLTAGE, HIGH-CURRENT 1.8 V LINEAR REGULATOR

Alternative Part Number

  • L4973V --: Similar step-down switching regulator in a vertical package, widely available and functionally comparable to the SI-3122V.
  • LM2576T-5 --: Popular fixed 5V step-down regulator with similar current capability, easy drop-in for many SI-3122V applications.
  • MC34063A --: Versatile general-purpose switching regulator IC that can be configured to match the SI-3122V function, low cost and broadly stocked.
  • SDS-3122V --: Similar voltage/current class switching diode from a different series naming, suitable as a functional drop-in replacement.
  • 1N4148 --: Widely available general-purpose small-signal diode with comparable switching characteristics for many low-power applications.
  • BAV21 --: High-voltage small-signal switching diode with similar fast switching behavior, usable as an alternative in general circuits.

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