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L5973D

UP TO 2.5A STEP DOWN SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L5973D 413 In Stock

Description and Introduction

UP TO 2.5A STEP DOWN SWITCHING REGULATOR The L5973D is a step-down switching regulator manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.4V to 36V  
- **Output Voltage Range:** Adjustable from 1.235V to 35V  
- **Output Current:** Up to 2.5A  
- **Switching Frequency:** 250kHz (fixed)  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +150°C (junction temperature)  
- **Package:** HSOP-8 (Exposed Pad)  

### **Descriptions:**  
- The L5973D is a monolithic step-down switching regulator with internal power switch.  
- It is designed for high-efficiency DC-DC conversion with minimal external components.  
- Includes built-in protection features such as thermal shutdown and current limiting.  

### **Features:**  
- **Internal Power MOSFET:** Reduces external component count.  
- **Low Dropout Operation:** Allows operation close to the input voltage.  
- **Soft-Start:** Prevents inrush current at startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  
- **Current Mode Control:** Provides fast transient response and stable operation.  
- **Synchronizable:** Can be synchronized to an external clock.  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to STMicroelectronics' official documentation.

Application Scenarios & Design Considerations

UP TO 2.5A STEP DOWN SWITCHING REGULATOR

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