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L4963D from ST,ST Microelectronics

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L4963D

Manufacturer: ST

1.5A SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L4963D ST 2500 In Stock

Description and Introduction

1.5A SWITCHING REGULATOR The L4963D is a monolithic step-down switching regulator manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Output Voltage:** Adjustable from **5.1V to 40V**  
- **Output Current:** Up to **2.5A**  
- **Input Voltage Range:** **9V to 46V**  
- **Switching Frequency:** **100 kHz** (fixed)  
- **Efficiency:** Up to **90%**  
- **Dropout Voltage:** **1.1V** (typical)  
- **Operating Temperature Range:** **-40°C to +150°C** (junction temperature)  
- **Package:** **Multiwatt15 (Vertical)**  

### **Descriptions:**  
- The L4963D is a **PWM buck (step-down) regulator** with an integrated power switch.  
- It includes **overcurrent protection, thermal shutdown, and soft-start functionality**.  
- Designed for **high-efficiency power conversion** in automotive, industrial, and consumer applications.  

### **Features:**  
- **Adjustable Output Voltage** via external resistor divider.  
- **Internal Current Limiting** for overload protection.  
- **Thermal Shutdown** with hysteresis for safe operation.  
- **Soft-Start** to reduce inrush current.  
- **Error Amplifier** for precise voltage regulation.  
- **Bootstrap Circuit** for driving the high-side MOSFET.  

This information is strictly based on the manufacturer's datasheet. For detailed application guidelines, refer to STMicroelectronics' official documentation.

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