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L5972D from ST,ST Microelectronics

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L5972D

Manufacturer: ST

UP TO 2A STEP DOWN SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L5972D ST 9136 In Stock

Description and Introduction

UP TO 2A STEP DOWN SWITCHING REGULATOR The **L5972D** is a **step-down switching regulator** manufactured by **STMicroelectronics (ST)**. Below are its key specifications, descriptions, and features based on factual information from the datasheet:

### **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:** 250 kHz (fixed)  
- **Efficiency:** Up to 95%  
- **Quiescent Current:** ~2.5 mA (typical)  
- **Operating Temperature Range:** -40°C to +150°C (junction temperature)  
- **Package:** **SO-8 (PowerSO-8)**  

### **Descriptions:**
- The **L5972D** is a **monolithic step-down switching regulator** with an integrated **2.5A power switch**.  
- It is designed for **DC-DC converter applications**, providing high efficiency and low power dissipation.  
- The device includes **internal current limiting, thermal shutdown, and soft-start** for protection.  
- It supports **adjustable output voltage** via an external resistor divider.  

### **Features:**
- **Wide input voltage range (4.4V to 36V)**  
- **2.5A output current capability**  
- **Internal 0.3Ω DMOS power switch**  
- **Fixed 250 kHz switching frequency**  
- **Adjustable soft-start function**  
- **Undervoltage lockout (UVLO)**  
- **Thermal shutdown protection**  
- **Short-circuit protection**  
- **Synchronous rectification (external Schottky diode not required for low output voltages)**  

This information is sourced directly from the **STMicroelectronics L5972D datasheet**. For detailed electrical characteristics and application circuits, refer to the official documentation.

Application Scenarios & Design Considerations

UP TO 2A STEP DOWN SWITCHING REGULATOR

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