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

  • L9947S ,1500,ZIP

    Here are the factual details about part **L9947S** from the manufacturer **STMicroelectronics**: ### **Manufacturer:** STMicroelectronics (ST) ### **Specifications:** - **Type:** Dual H-Bridge Motor Driver IC - **Operating Voltage Range:** 4.

  • STM8S105S6T6C ,9693,LQFP-44_10x10x08P

    STM8S105S6T6C** is a microcontroller from STMicroelectronics, part of the STM8S series.

  • STM32F051K8U6 ,3905,

    STM32F051K8U6** is a microcontroller from STMicroelectronics, part of the STM32F0 series based on the ARM Cortex-M0 core.

  • 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