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L5980 from ST,ST Microelectronics

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L5980

Manufacturer: ST

Up to 0.7 A step down switching regulator

Partnumber Manufacturer Quantity Availability
L5980 ST 1658 In Stock

Description and Introduction

Up to 0.7 A step down switching regulator The L5980 is a step-down monolithic switching regulator manufactured by STMicroelectronics. Below are the key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 2.9V to 18V  
- **Output Voltage Range:** 0.6V to VIN (adjustable via external resistors)  
- **Output Current:** Up to 4A  
- **Switching Frequency:** Adjustable from 250kHz to 1MHz (external synchronization possible)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +150°C (junction temperature)  
- **Package:** HSOP-8 (Exposed Pad)  

### **Descriptions:**  
- The L5980 is a synchronous step-down DC-DC converter with integrated power MOSFETs.  
- It operates in **PWM (Pulse Width Modulation)** mode for high efficiency under heavy loads and automatically switches to **PFM (Pulse Frequency Modulation)** mode at light loads to improve efficiency.  
- It includes **internal soft-start**, **overcurrent protection (OCP)**, **thermal shutdown**, and **undervoltage lockout (UVLO)**.  

### **Features:**  
- **Synchronous Rectification:** Reduces power dissipation and improves efficiency.  
- **Adjustable Output Voltage:** Set via external resistor divider.  
- **External Clock Synchronization:** Allows synchronization with an external clock signal.  
- **Low Dropout Operation:** Can maintain regulation even when the input voltage is close to the output voltage.  
- **Internal Compensation:** Simplifies design by eliminating the need for external compensation components.  
- **Power Good Output:** Provides a signal indicating when the output voltage is within regulation.  

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

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