STMicroelectronics

L4973V5.1  

DC Switching Voltage Regulators

L4973V5.1 Description

The L4973V5.1 is a DC switching voltage regulator manufactured by STMicroelectronics, designed to provide efficient power conversion in various electronic devices. This product features a buck topology, allowing for step-down voltage conversion with high efficiency and low noise. The L4973V5.1 is currently classified as obsolete, but its unique features and performance benefits make it suitable for certain applications.

L4973V5.1 Features

• Output Type: Adjustable (Fixed) - The output voltage can be adjusted or set to a fixed value.
• Voltage - Input (Max): 55V - The maximum input voltage the regulator can handle.
• Current - Output: 3.5A - The maximum output current the regulator can provide.
• Output Configuration: Positive - The output voltage is positive relative to the ground.
• Voltage - Input (Min): 8V - The minimum input voltage required for the regulator to function.
• Frequency - Switching: 100kHz ~ 300kHz - The operating frequency range of the regulator.
• REACH Status: REACH Unaffected - The product is not affected by the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation.
• RoHS Status: ROHS3 Compliant - The product complies with the Restriction of Hazardous Substances (RoHS) directive.
• Moisture Sensitivity Level (MSL): 1 (Unlimited) - The product has unlimited storage time before reflow soldering.
• Synchronous Rectifier: No - The regulator does not use a synchronous rectifier.
• Topology: Buck - The regulator uses a buck topology for step-down voltage conversion.
• Mounting Type: Through Hole - The product is mounted using through-hole technology.
• Voltage - Output (Max): 50V - The maximum output voltage the regulator can provide.
• Number of Outputs: 1 - The regulator has a single output.
• Package: Tube - The product is packaged in a tube.

L4973V5.1 Applications

The L4973V5.1 is ideal for applications requiring efficient power conversion and voltage regulation, such as:

1. Industrial Control Systems: The high input voltage range and adjustable output make it suitable for powering various industrial control components.
2. Telecommunications Equipment: The low noise and high efficiency of the L4973V5.1 make it suitable for powering sensitive telecommunications equipment.
3. Automotive Electronics: The wide input voltage range and high output current make it suitable for automotive applications, such as infotainment systems and powertrain control modules.

Conclusion of L4973V5.1

The L4973V5.1 is a versatile DC switching voltage regulator with a buck topology, offering high efficiency, low noise, and adjustable output voltage. Although it is classified as obsolete, its unique features and performance benefits make it suitable for specific applications in industrial control systems, telecommunications equipment, and automotive electronics. The L4973V5.1's compliance with RoHS and REACH regulations, along with its unlimited moisture sensitivity level, make it a reliable choice for demanding applications.

L4973V5.1 Documents

Download datasheets and manufacturer documentation for L4973V5.1

EOL :

Product Discontinuance Notification (PDF)