Professional IC Distribution & Technical Solutions

Global leader in semiconductor components distribution and technical support services, empowering your product innovation and industry advancement

Product Catalog Contact Us
Home > ST02 > L4978D

L4978D Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
L4978DST118Yes

L4978D is a switching regulator IC manufactured by SGS-THOMSON (now STMicroelectronics).

The L4978D is a switching regulator IC manufactured by SGS-THOMSON (now STMicroelectronics). Below are the factual specifications, descriptions, and features from the Manufactor Datasheet:

Specifications:

  • Output Voltage: Adjustable from 3.3V to 50V
  • Output Current: Up to 2.5A
  • Input Voltage Range: 8V to 55V
  • Switching Frequency: 200 kHz (fixed)
  • Efficiency: Up to 90%
  • Operating Temperature Range: -40°C to +150°C
  • Package: PowerDIP-16 or SO-16

Descriptions:

  • The L4978D is a step-down (buck) switching regulator designed for high-efficiency DC-DC conversion.
  • It includes an internal power MOSFET, PWM controller, and protection features.
  • Suitable for industrial, automotive, and power supply applications.

Features:

  • Internal Power MOSFET: Reduces external component count.
  • Soft-Start: Prevents inrush current at startup.
  • Overcurrent Protection: Limits output current to safe levels.
  • Thermal Shutdown: Protects the IC from overheating.
  • Under-Voltage Lockout (UVLO): Ensures proper operation within input voltage range.
  • Adjustable Output Voltage: Set via external resistors.

This information is based on the manufacturer's datasheet for the L4978D by SGS-THOMSON (STMicroelectronics).

Request Quotation

Part Number:
Quantity:
Target Price($USD):
Email:
Contact Person:
Additional Part Number
Quantity (Additional)
Special Requirements
Verification: =

Recommended Products

  • HCF4013 ,851,SOP14

    HCF4013 is a dual D-type flip-flop integrated circuit manufactured by Texas Instruments (TI).

  • L298N ,1705,ZIP

    L298N is a dual full-bridge driver manufactured by STMicroelectronics (ST).

  • HCF4072BE ,125,DIP14

    HCF4072BE is a dual 4-input OR gate integrated circuit manufactured by STMicroelectronics (ST).

  • MC68HC05C8,MOTO,12,DIP42

    P8228,NS,12,DIP28

Sales Support

Our sales team is ready to assist with:

  • Fast quotation
  • Price Discount
  • Technical specifications
Contact sales