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L4975A from STM,ST Microelectronics

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L4975A

Manufacturer: STM

5A SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L4975A STM 10000 In Stock

Description and Introduction

5A SWITCHING REGULATOR The L4975A is a monolithic step-down switching regulator manufactured by STMicroelectronics (STM).  

### **Specifications:**  
- **Input Voltage Range:** 15V to 50V  
- **Output Voltage:** Adjustable from 5.1V to 40V  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 200 kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** Multiwatt15 (through-hole)  

### **Descriptions:**  
- The L4975A is a high-efficiency step-down (buck) regulator with a wide input voltage range.  
- It integrates a power MOSFET, PWM controller, and protection features.  
- Designed for applications requiring high current and voltage regulation.  

### **Features:**  
- **Internal Power MOSFET:** Reduces external component count.  
- **PWM Control:** Fixed-frequency operation for stable performance.  
- **Protection Circuits:** Includes thermal shutdown, current limiting, and undervoltage lockout (UVLO).  
- **Soft-Start:** Prevents inrush current at startup.  
- **Adjustable Output Voltage:** Set via an external resistor divider.  
- **Synchronization Capability:** Can sync with an external clock signal.  

This information is based on STMicroelectronics' official documentation for the L4975A.

Application Scenarios & Design Considerations

5A SWITCHING REGULATOR
Partnumber Manufacturer Quantity Availability
L4975A ST,ST 10000 In Stock

Description and Introduction

5A SWITCHING REGULATOR The L4975A is a switching regulator IC manufactured by STMicroelectronics (ST). Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
STMicroelectronics (ST)  

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

### **Descriptions:**  
The L4975A is a step-down (buck) switching regulator designed for high-efficiency DC-DC conversion. It integrates a power MOSFET, PWM controller, and protection features. It is suitable for applications requiring high current and voltage regulation.  

### **Features:**  
- **Integrated Power MOSFET**  
- **Adjustable Output Voltage**  
- **Current Limiting and Thermal Shutdown**  
- **Soft-Start Function**  
- **Undervoltage Lockout (UVLO)**  
- **Error Amplifier for Feedback Control**  
- **External Synchronization Capability**  

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

Application Scenarios & Design Considerations

5A SWITCHING REGULATOR

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