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L5988 from ST/PBF,ST Microelectronics

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L5988

Manufacturer: ST/PBF

4A step-down switching regulator with synchronous rectification

Partnumber Manufacturer Quantity Availability
L5988 ST/PBF 192 In Stock

Description and Introduction

4A step-down switching regulator with synchronous rectification The L5988 is a step-down monolithic power switching regulator manufactured by STMicroelectronics (ST).  

### **Key Specifications:**  
- **Input Voltage Range:** 4.5V to 18V  
- **Output Voltage Range:** 0.6V to VIN  
- **Output Current:** Up to 4A  
- **Switching Frequency:** Adjustable (250kHz to 1MHz)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 150°C  
- **Package:** PowerSSO-16  

### **Descriptions and Features:**  
- **Synchronous Buck Converter:** Integrated high-side and low-side MOSFETs for efficient power conversion.  
- **Adjustable Frequency:** Allows optimization for efficiency or component size.  
- **Soft-Start:** Programmable to limit inrush current.  
- **Protections:** Overcurrent, thermal shutdown, and undervoltage lockout (UVLO).  
- **Voltage Tracking:** Supports external voltage tracking for sequencing requirements.  
- **Low Quiescent Current:** Improves efficiency in light-load conditions.  
- **PWM Mode:** Fixed-frequency operation for consistent performance.  

The L5988 is designed for applications requiring high efficiency and compact power solutions, such as industrial, telecom, and consumer electronics.  

(Note: PBF in the part number typically indicates "Lead-Free" compliance.)

Application Scenarios & Design Considerations

4A step-down switching regulator with synchronous rectification

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