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L5972D013TR from ST,ST Microelectronics

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L5972D013TR

Manufacturer: ST, STM

2A SWITCH STEP DOWN SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L5972D013TR ST, STM 201 In Stock

Description and Introduction

2A SWITCH STEP DOWN SWITCHING REGULATOR The **L5972D013TR** is a step-down switching regulator manufactured by **STMicroelectronics (STM)**. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.4V to 36V  
- **Output Voltage:** Adjustable (1.235V to 35V)  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 250kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** **HSOP-8** (Exposed Pad)  

### **Descriptions:**  
- The **L5972D013TR** is a monolithic **step-down (buck) switching regulator** with an integrated **1.5A DMOS power switch**.  
- It features **current-mode control** for stable operation and fast transient response.  
- Includes **thermal shutdown** and **current limiting** for protection.  
- Designed for **low external component count**, making it suitable for space-constrained applications.  

### **Features:**  
- **Wide Input Voltage Range** (4.4V to 36V)  
- **Adjustable Output Voltage** (via external resistors)  
- **Internal Soft-Start** to reduce inrush current  
- **Synchronous Rectification** for improved efficiency  
- **Low Dropout Operation** (100% duty cycle possible)  
- **Undervoltage Lockout (UVLO)**  
- **Short-Circuit Protection**  

This regulator is commonly used in **industrial, automotive, and consumer electronics** applications requiring efficient DC-DC conversion.  

(Data sourced from **STMicroelectronics' official documentation**.)

Application Scenarios & Design Considerations

2A SWITCH STEP DOWN SWITCHING REGULATOR

Alternative Part Number

  • LM2596S-ADJ --: Widely available adjustable step-down regulator with similar input voltage range and current capability, easy drop-in for many L5972D applications.
  • MP1584EN --: Compact high-efficiency buck converter with comparable voltage and current ratings, good alternative when board space is limited.
  • AP3211KTR-G1 --: Adjustable buck regulator with similar switching frequency and load capability, suitable cost-effective replacement.

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