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L5987 from ST,ST Microelectronics

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31.250ms

L5987

Manufacturer: ST

3 A step-down switching regulator

Partnumber Manufacturer Quantity Availability
L5987 ST 830 In Stock

Description and Introduction

3 A step-down switching regulator The L5987 is a step-down monolithic power switching regulator manufactured by STMicroelectronics.  

### **Specifications:**  
- **Input Voltage Range:** 4.4V to 18V  
- **Output Voltage Range:** 0.6V to VIN (adjustable)  
- **Output Current:** Up to 2.5A  
- **Switching Frequency:** 250kHz to 1MHz (adjustable)  
- **Efficiency:** Up to 93%  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** HSOP-8 (Exposed Pad)  

### **Descriptions & Features:**  
- **Synchronous Buck Converter:** Uses internal MOSFETs for high efficiency.  
- **Adjustable Output Voltage:** Set via external resistor divider.  
- **Programmable Switching Frequency:** Allows optimization for efficiency or component size.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent & Thermal Protection:** Includes cycle-by-cycle current limiting and thermal shutdown.  
- **Low Dropout Operation:** Maintains regulation even when input voltage is close to output.  
- **100% Duty Cycle Capability:** Suitable for battery-powered applications.  
- **Enable Pin:** Allows shutdown mode for reduced power consumption.  

This regulator is designed for applications like industrial systems, networking equipment, and consumer electronics.

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