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L4973D3.3-013TR from ST,ST Microelectronics

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L4973D3.3-013TR

Manufacturer: ST

3.5A STEP DOWN SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L4973D3.3-013TR,L4973D33013TR ST 6074 In Stock

Description and Introduction

3.5A STEP DOWN SWITCHING REGULATOR The L4973D3.3-013TR is a step-down switching regulator manufactured by STMicroelectronics (ST).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** Up to 3.5A  
- **Input Voltage Range:** 8V to 55V  
- **Switching Frequency:** 200kHz (adjustable with external components)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** SO-20 (Surface Mount)  
- **Protection Features:** Overcurrent, thermal shutdown, and input undervoltage lockout  

### **Descriptions & Features:**  
- **High Efficiency:** Uses a buck converter topology for efficient power conversion.  
- **Adjustable Frequency:** Allows optimization for size and efficiency.  
- **Built-in Protections:** Includes thermal shutdown, current limiting, and input undervoltage lockout for reliability.  
- **Low Dropout Operation:** Maintains regulation even when input voltage is close to output.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Synchronization Capability:** Can be synchronized to an external clock.  

This regulator is commonly used in automotive, industrial, and telecom applications requiring stable power conversion from higher voltages.

Application Scenarios & Design Considerations

3.5A STEP DOWN SWITCHING REGULATOR

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