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L4976D013TR from STM,ST Microelectronics

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L4976D013TR

Manufacturer: STM, ST

1A STEP DOWN SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L4976D013TR STM, ST 2372 In Stock

Description and Introduction

1A STEP DOWN SWITCHING REGULATOR The **L4976D013TR** is a switching regulator IC manufactured by **STMicroelectronics (STM)**. Here are the key specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Manufacturer:**  
- **STMicroelectronics (STM)**  

### **Key Specifications:**  
- **Output Voltage:** Adjustable or fixed 13V  
- **Output Current:** Up to 1.5A  
- **Input Voltage Range:** 15V to 50V  
- **Switching Frequency:** 200 kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Package:** **TO-263 (D²PAK)**  

### **Descriptions:**  
- A **step-down (buck) switching regulator** designed for high-efficiency DC-DC conversion.  
- Features **PWM control** with internal power MOSFET for compact designs.  
- Includes **thermal shutdown, current limiting, and under-voltage lockout (UVLO)** for protection.  

### **Features:**  
- **Fixed 13V output or adjustable via external resistors**  
- **Internal soft-start** to reduce inrush current  
- **Low standby current** in shutdown mode  
- **Overcurrent and overtemperature protection**  
- **Synchronizable switching frequency**  

This information is based on STMicroelectronics' official documentation for the **L4976D013TR**.

Application Scenarios & Design Considerations

1A STEP DOWN SWITCHING REGULATOR

Alternative Part Number

  • LM2596S-5.0 --: Widely available step-down regulator with similar current capability and simple fixed-output design, easy drop-in for many L4976 applications.
  • MC34063A --: Versatile buck/boost/inverting switching regulator usable as a lower-cost functional substitute when output current requirements are moderate.
  • XL4015E1 --: High-current buck converter IC with adjustable output, suitable as a cost-effective alternative for similar step-down power supply designs.

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