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L5973 from ST,ST Microelectronics

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L5973

Manufacturer: ST

UP TO 2.5A STEP DOWN SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L5973 ST 75 In Stock

Description and Introduction

UP TO 2.5A STEP DOWN SWITCHING REGULATOR The L5973 is a step-down switching regulator manufactured by STMicroelectronics. Below are the specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Manufacturer:** STMicroelectronics  

### **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 90%  
- **Operating Junction Temperature:** -40°C to 150°C  
- **Package:** HSOP-8 (PowerSO-8)  

### **Descriptions:**  
- The L5973 is a monolithic step-down switching regulator with an internal power switch.  
- It is designed for DC-DC converter applications, providing high efficiency and low dropout operation.  
- The device includes internal current limiting, thermal shutdown, and soft-start functionality.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4.4V to 36V operation.  
- **Adjustable Output Voltage:** Set via an external resistor divider.  
- **Internal Power MOSFET:** Reduces external component count.  
- **Current Mode Control:** Ensures stability and fast transient response.  
- **Protection Features:**  
  - Overcurrent protection  
  - Thermal shutdown  
  - Undervoltage lockout (UVLO)  
- **Soft-Start Function:** Prevents inrush current at startup.  
- **Low Standby Current:** Suitable for battery-powered applications.  

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

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