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 > ST04 > L4990

L4990 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
L4990ST100Yes

Certainly!

Certainly! Here is the factual information about the L4990 manufactured by STMicroelectronics (STM):

Description:

The L4990 is a high-voltage monolithic switching regulator designed for off-line power supplies. It operates in current-mode PWM (Pulse Width Modulation) and is suitable for flyback, forward, and boost converter topologies.

Key Features:

  • Input Voltage Range: Up to 500V (suitable for offline applications).
  • Output Voltage: Adjustable via external components.
  • Switching Frequency: Up to 500 kHz (adjustable).
  • Current-Mode Control: Ensures stable operation and fast transient response.
  • Built-in Protections:
  • Overvoltage Protection (OVP)
  • Undervoltage Lockout (UVLO)
  • Overcurrent Protection (OCP)
  • Thermal Shutdown
  • Low Startup Current: Typically 150 µA, reducing power dissipation.
  • High Output Drive Capability: Directly drives a power MOSFET.
  • Package Options: Available in DIP-8 and SO-8 packages.

Applications:

  • AC/DC Converters
  • Flyback and Forward Converters
  • Auxiliary Power Supplies
  • Industrial and Consumer Power Systems

For detailed specifications, refer to the official STMicroelectronics datasheet for the L4990. Let me know if you need additional technical details.

Request Quotation

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

Recommended Products

  • STV6888 ,350,DIP

    STV6888 is a deflection controller IC manufactured by SGS-THOMSON (now STMicroelectronics).

  • 9362913 ,5000,ZIP

    STMicroelectronics part number 9362913** is a **STTH8R06FP** ultrafast recovery diode.

  • M74HC590B1 ,121,DIP16

    M74HC590B1** is a high-speed CMOS 8-bit binary counter with output registers, manufactured by **STMicroelectronics (ST)**.

Sales Support

Our sales team is ready to assist with:

  • Fast quotation
  • Price Discount
  • Technical specifications
Contact sales