L4973D5.1 - STMicroelectronics

Manufacturer Part Number

L4973D5.1

Manufacturer

stmicroelectronics

Introduction

The L4973D5.1, from stmicroelectronics, is a step-down (Buck) switching regulator designed for power management in various electronic systems.

Product Features and Performance

Adjustable output voltage starting at 5.1V, with a maximum output of 50V

Capable of delivering an output current of 3.5A

Input voltage range from 8V to 55V

Supports a frequency range of 100kHz to 300kHz for switching

Operates over a wide temperature range from -40°C to 150°C

Does not utilize a synchronous rectifier

Product Advantages

High efficiency due to its buck topology

Broad input voltage range suitable for diverse applications

Supports high output current up to 3.5A

Flexible temperature operation making it suitable for various environments

Key Technical Parameters

Voltage Input (Min): 8V

Voltage Input (Max): 55V

Voltage Output (Min/Fixed): 5.1V

Voltage Output (Max): 50V

Current Output: 3.5A

Frequency Switching: 100kHz ~ 300kHz

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

Quality and Safety Features

Due to its obsolete status, specific quality and safety features according to the latest standards might not be documented. However, stmicroelectronics products generally adhere to high-quality manufacturing processes.

Compatibility

This component is designed for surface mount technology, encapsulated in a 20-SOIC package. Compatibility with electronic systems depends on voltage, current, and thermal requirements.

Application Areas

Designed for power management across a broad range of electronic devices, including:

Consumer electronics

Automotive subsystems

Industrial controls

Power supply units

Product Lifecycle

The L4973D5.1 is classified as obsolete, meaning no future manufacturing plans. Potential buyers should consider last-time buys or look for replacements and upgrades from the same or different manufacturers.

Several Key Reasons to Choose This Product

Wide input voltage range suitable for various power sources

Capable of delivering a high output power level

Flexible in operating across different temperature ranges

stmicroelectronics's reputation for reliability and performance in power management technologies