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L4973D-3.3 from ST,ST Microelectronics

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L4973D-3.3

Manufacturer: ST

3.5A STEP DOWN SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L4973D-3.3,L4973D33 ST 11 In Stock

Description and Introduction

3.5A STEP DOWN SWITCHING REGULATOR The **L4973D-3.3** is a **3.3V, 3.5A step-down switching regulator** manufactured by **STMicroelectronics (ST)**.  

### **Key Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** Up to 3.5A  
- **Input Voltage Range:** 8V to 55V  
- **Switching Frequency:** 200kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** **DIP-20** (Multiwatt-15)  

### **Features:**  
- **Built-in power MOSFET**  
- **Current-mode control** for improved transient response  
- **Undervoltage lockout (UVLO)**  
- **Soft-start function** to limit inrush current  
- **Thermal shutdown protection**  
- **Overcurrent protection**  
- **Adjustable current limit**  

This regulator is designed for **high-efficiency DC-DC conversion** in applications such as industrial power supplies, automotive systems, and telecommunications equipment.  

Would you like additional details on pin configuration or application notes?

Application Scenarios & Design Considerations

3.5A STEP DOWN SWITCHING REGULATOR

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