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L4964 from ST,ST Microelectronics

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L4964

Manufacturer: ST

HIGH CURRENT SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L4964 ST 500 In Stock

Description and Introduction

HIGH CURRENT SWITCHING REGULATOR The L4964 is a monolithic power switching regulator manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
- **Output Voltage Range:** Adjustable from **5.1V to 40V**  
- **Output Current:** Up to **4A**  
- **Input Voltage Range:** **9V to 50V**  
- **Switching Frequency:** **100kHz** (fixed)  
- **Efficiency:** Up to **90%**  
- **Dropout Voltage:** **1.5V** (typical)  
- **Operating Junction Temperature:** **-40°C to +150°C**  
- **Package:** **Multiwatt15 (Vertical)**  

### **Descriptions:**  
- The L4964 is a **step-down (buck) switching regulator** designed for high-efficiency power supply applications.  
- It integrates a **DMOS power switch**, **PWM controller**, **thermal protection**, and **current limiting**.  
- Suitable for **industrial, automotive, and consumer electronics** requiring stable and efficient power conversion.  

### **Features:**  
- **Adjustable output voltage** via external resistors  
- **Internal current limiting** and **thermal shutdown**  
- **Soft-start function** to reduce inrush current  
- **Undervoltage lockout (UVLO)** for input voltage protection  
- **External synchronization capability**  
- **Low standby current consumption**  

For exact performance characteristics, refer to the official **STMicroelectronics datasheet**.

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