L4973V5.1 - STMicroelectronics

Manufacturer Part Number

L4973V5.1

Manufacturer

STMicroelectronics

Introduction

Voltage regulator for efficient step-down DC-DC power conversion

Product Features and Performance

High input voltage range up to 55V

Adjustable output voltage starting from 5.1V

Output current capability of 3.5A

Product Advantages

High efficiency for power-sensitive applications

Thermal overload protection enhances reliability

Wide operating temperature range suitable for industrial environments

Key Technical Parameters

Input Voltage (Min): 8V

Input Voltage (Max): 55V

Output Voltage (Min/Fixed): 5.1V

Output Voltage (Max): 50V

Output Current: 3.5A

Switching Frequency: 100kHz to 300kHz

Operating Temperature: -40°C to 150°C (TJ)

Quality and Safety Features

Built-in protection against overheating

Meets regulatory requirements for safety

Compatibility

Designed for use with a wide range of electronic devices

Through-hole mounting compatible with standard PCB layouts

Application Areas

Industrial power systems

Automotive electronics

Telecommunications infrastructure

Product Lifecycle

Obsolete status suggests limited availability

Potential alternatives may be required for new designs

Several Key Reasons to Choose This Product

Robust performance in high-voltage conditions

Flexibility in design with adjustable output voltage

Dependable in extreme temperatures and harsh environments

Proven manufacturer with a history of reliable semiconductor products