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L4975 from ST,ST Microelectronics

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L4975

Manufacturer: ST

5A SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L4975 ST 50 In Stock

Description and Introduction

5A SWITCHING REGULATOR The L4975 is a switching regulator IC manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
- **Output Voltage:** Adjustable from 3.3V to 50V  
- **Output Current:** Up to 5A  
- **Input Voltage Range:** 15V to 55V  
- **Switching Frequency:** 200 kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** Multiwatt15 (through-hole)  

### **Descriptions:**  
- The L4975 is a step-down (buck) switching regulator designed for high-efficiency DC-DC conversion.  
- It includes built-in protections such as thermal shutdown, current limiting, and under-voltage lockout (UVLO).  
- Suitable for industrial, automotive, and power supply applications.  

### **Features:**  
- **High Efficiency:** Minimizes power dissipation.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Fixed Frequency Operation:** 200 kHz PWM control for stable performance.  
- **Protections:**  
  - Thermal shutdown  
  - Current limiting  
  - Under-voltage lockout (UVLO)  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Synchronization Capability:** Can be synchronized to an external clock.  

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

Application Scenarios & Design Considerations

5A SWITCHING REGULATOR

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