L4978 -

Manufacturer Part Number

L4978

Manufacturer

stmicroelectronics

Introduction

The L4978 is a high-efficiency, step-down (buck) DC-DC switching regulator capable of delivering up to 2A of output current. It operates from an input voltage range of 8V to 55V and can provide an adjustable output voltage from 3.3V to 50V. The L4978 features a fixed-frequency, current-mode control architecture, which provides excellent line and load regulation, as well as fast transient response.

Product Features and Performance

High efficiency up to 93%

Input voltage range: 8V to 55V

Adjustable output voltage: 3.3V to 50V

Output current up to 2A

Switching frequency range: 100kHz to 300kHz

Current-mode control for excellent line and load regulation

Fast transient response

Thermal shutdown and current limiting protection

No external compensation required

Product Advantages

Wide input voltage range suitable for a variety of applications

Adjustable output voltage for flexibility

High efficiency for improved power savings

Robust protection features for reliable operation

Key Reasons to Choose This Product

High-performance, cost-effective power management solution

Ideal for industrial, automotive, and consumer electronics applications

Proven reliability and long-term availability from a trusted semiconductor manufacturer

Easy to design in and integrate into your system

Quality and Safety Features

Thermal shutdown protection

Current limiting protection

Robust package and design for reliable operation

Compatibility

The L4978 is a general-purpose DC-DC switching regulator and is compatible with a wide range of applications that require a high-efficiency, adjustable power supply.

Application Areas

Industrial equipment

Automotive electronics

Consumer electronics

Telecommunications equipment

General-purpose power supplies

Product Lifecycle

The L4978 is an active and commonly used product in our website's sales team's portfolio. There are no immediate plans for discontinuation. Alternative models with similar performance and features are available, such as the L4981 and L7805. However, for the most up-to-date information on product availability and alternatives, please contact our website's sales team.