L4973V3.3 - STMicroelectronics

Manufacturer Part Number

L4973V3.3

Manufacturer

stmicroelectronics

Introduction

The L4973V3.3 is a powerful step-down (buck) regulator designed for power management, especially suitable for applications requiring efficient voltage reduction from a higher voltage source.

Product Features and Performance

Adjustable output ranging from 0.5V to 50V

Output current capacity of 3.5A

Supports input voltage from 8V to 55V

Switching frequency between 100kHz and 300kHz

Operates at an extended temperature range from -40°C to 150°C

Through hole mounting type ensures robust physical attachment

Product Advantages

High flexibility with adjustable output voltage

Capable of handling high input voltage up to 55V

Able to deliver a substantial 3.5A output current

Operates efficiently under extreme temperature conditions

Key Technical Parameters

Voltage Input (Min): 8V

Voltage Input (Max): 55V

Voltage Output (Min/Fixed): 0.5V (3.3V)

Voltage Output (Max): 50V

Current Output: 3.5A

Frequency Switching: 100kHz ~ 300kHz

Operating Temperature: -40°C ~ 150°C

Quality and Safety Features

High temperature operational capability ensures reliability under stress

Robust through hole mounting fosters durable connections

Compatibility

Compatible with a broad range of input voltages, making it versatile for various applications

Application Areas

Suitable for power conditioning and management in electronics that demand high voltage input conversion

Product Lifecycle

Product Status: Obsolete

Although this model is obsolete, replacements or upgrades might be available from stmicroelectronics depending on the specific needs.

Several Key Reasons to Choose This Product

It’s capable of delivering high output current (3.5A), which is ideal for power-heavy applications.

Broad input voltage range (8V to 55V) ensures compatibility with various power sources.

Adjustable output voltage offers customization based on specific circuit requirements.

High temperature tolerance up to 150°C provides reliability in harsh environments.