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L5973ADTR from ST,ST Microelectronics

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L5973ADTR

Manufacturer: ST

2A SWITCH STEP DOWN SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L5973ADTR ST 952 In Stock

Description and Introduction

2A SWITCH STEP DOWN SWITCHING REGULATOR The L5973ADTR is a step-down switching regulator manufactured by STMicroelectronics. Here 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)  
- **Package:** HSOP-8 (Exposed Pad)  

### **Descriptions:**  
- The L5973ADTR is a monolithic step-down switching regulator with internal power switch.  
- It is designed for DC-DC converter applications requiring high efficiency and compact design.  
- Features include thermal shutdown, current limiting, and under-voltage lockout (UVLO).  

### **Features:**  
- **Internal Power MOSFET:** Reduces external component count.  
- **Adjustable Output Voltage:** Via external resistor divider.  
- **Pulse-Width Modulation (PWM) Control:** Ensures stable regulation.  
- **Soft-Start Function:** Prevents inrush current at startup.  
- **Low Dropout Operation:** Allows input voltage close to output voltage.  
- **Synchronous Rectification:** Improves efficiency.  
- **Protections:** Overcurrent, thermal shutdown, and UVLO.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

2A SWITCH STEP DOWN SWITCHING REGULATOR
Partnumber Manufacturer Quantity Availability
L5973ADTR ST,ST 60000 In Stock

Description and Introduction

2A SWITCH STEP DOWN SWITCHING REGULATOR The **L5973ADTR** is a step-down switching regulator manufactured by **STMicroelectronics (ST)**. Below are the factual details about the part:

### **Specifications:**
- **Manufacturer:** STMicroelectronics (ST)  
- **Type:** Step-Down Switching Regulator (Buck Converter)  
- **Output Voltage:** Adjustable (1.235V to 35V)  
- **Output Current:** Up to 2.5A  
- **Input Voltage Range:** 4.4V to 36V  
- **Switching Frequency:** 250kHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** **HSOP-8** (Exposed Pad for Thermal Management)  
- **Protection Features:**  
  - Overcurrent Protection  
  - Thermal Shutdown  
  - Soft-Start Function  

### **Descriptions and Features:**  
- The **L5973ADTR** is a monolithic step-down switching regulator designed for high-efficiency DC-DC conversion.  
- It integrates a **PWM controller** with a **2.5A power switch**, reducing external component count.  
- The device operates at a fixed **250kHz switching frequency**, minimizing output ripple.  
- It supports **adjustable output voltage** via an external resistor divider.  
- Features **soft-start** to limit inrush current during startup.  
- The **HSOP-8 package** enhances thermal performance for high-power applications.  
- Suitable for **battery-powered devices, industrial systems, and automotive applications**.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

2A SWITCH STEP DOWN SWITCHING REGULATOR

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