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 > ST03 > L4943

L4943 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
L4943ST500Yes

part L4943 is a low-drop voltage regulator manufactured by STMicroelectronics (ST).

The part L4943 is a low-drop voltage regulator manufactured by STMicroelectronics (ST). Below are the factual specifications, descriptions, and features from the Manufactor Datasheet:

Specifications:

  • Input Voltage Range: Up to 28V
  • Output Voltage Options: 5V (fixed)
  • Output Current: Up to 250mA
  • Dropout Voltage: Typically 0.4V at 250mA
  • Line Regulation: 0.04% (typical)
  • Load Regulation: 0.2% (typical)
  • Quiescent Current: 1.6mA (typical)
  • Operating Temperature Range: -40°C to +125°C
  • Package Options: TO-220, DPAK, SO-8

Descriptions:

  • The L4943 is a monolithic integrated low-drop voltage regulator designed for automotive and industrial applications.
  • It includes features like short-circuit protection, thermal shutdown, and reverse polarity protection.
  • The device is optimized for stability with low-ESR capacitors.

Features:

  • Low Dropout Voltage: Ensures efficient regulation even with small input-output differentials.
  • Overcurrent Protection: Safeguards against excessive current draw.
  • Thermal Shutdown: Prevents damage due to overheating.
  • Reverse Polarity Protection: Enhances reliability in automotive environments.
  • Low Quiescent Current: Improves efficiency in battery-operated systems.

These details are based on STMicroelectronics' official documentation for the L4943 voltage regulator.

Request Quotation

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

Recommended Products

  • L79L05ABUTR ,13030,SOT-89ECCN: EAR99

    L79L05ABUTR** is a negative voltage regulator manufactured by **STMicroelectronics (ST)**.

  • L78L05ACZ ,50000,TO-92ECCN: EAR99

    L78L05ACZ** is a positive voltage regulator manufactured by **STMicroelectronics (ST)**.

  • VN7010AJTR ,10000,SSOP16

    VN7010AJTR** is a high-side driver manufactured by **STMicroelectronics (ST)**.

  • 74HC03AP,TOSHIBA,27,DIP14

    TC89102P,tos,27,DIP8

Sales Support

Our sales team is ready to assist with:

  • Fast quotation
  • Price Discount
  • Technical specifications
Contact sales