L4978D - STMicroelectronics

Manufacturer Part Number

L4978D

Manufacturer

stmicroelectronics

Introduction

The L4978D is a high-performance, high-efficiency, and low noise step-down DC-DC converter. It is designed to provide a regulated output voltage from a wide input voltage range. The device features an adjustable output voltage, current-mode control, and internal compensation, making it easy to design and optimize the power supply.

Product Features and Performance

Wide input voltage range: 8V to 55V

Adjustable output voltage from 3.3V to 50V

Output current up to 2A

Switching frequency range: 100kHz to 300kHz

Excellent load and line regulation

Overcurrent, overvoltage, and thermal protection

Soft-start function

Low quiescent current in shutdown mode

Product Advantages

Versatile and flexible design for a wide range of applications

High efficiency and low noise operation

Compact surface mount package

Robust protection features for reliable performance

Key Reasons to Choose This Product

Ideal for industrial, automotive, and general-purpose applications

Offers a cost-effective solution for step-down power conversion

Reliable and robust design ensures long-term performance

Ease of use with internal compensation and simple external components

Quality and Safety Features

Meets industrial-grade quality standards

Overcurrent, overvoltage, and thermal protection for safe operation

RoHS-compliant for environmental responsibility

Compatibility

The L4978D is compatible with a wide range of power supply requirements and can be used in various industrial, automotive, and general-purpose applications.

Application Areas

Industrial equipment

Automotive systems

Appliances and consumer electronics

Telecommunications and networking equipment

Product Lifecycle

The L4978D is an active product in the stmicroelectronics portfolio. There are no current plans for discontinuation. For equivalent or alternative models, please contact our website's sales team for more information.