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LM2576BU

Part No LM2576BU
Manufacturer Microchip Technology
Catalog PMIC - Voltage Regulators - DC DC Switching Regulators
Description IC REG BUCK ADJ 3A TO263-5
Datasheet
Sample
Rohs State Need to verify
ECAD Module
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Categories Integrated Circuits
Manufacturer Microchip Technology
Packaging Tube/Rail
Status Obsolete(EOL)
Purpose Step-Down
Topology Buck
Output Type Adjustable
Number of Outputs 1
Minimum Input Voltage 4V
Maximum Input Voltage 40V
Nominal Output Voltage (Min/Fixed) 1.23V
Maximum Output Voltage 37V
Output Current 3A
Frequency - Switching 52kHz
Synchronous Rectifier No
Temperature Range - Operating -40°C to 125°C (TJ)
Mounting SMD (SMT)
Case / Package TO-263-5
Win Source Part Number 127722-LM2576BU
Popularity Medium
Supply and Demand Status Balance
Application Field Used in Power Management
Ultra Librarian 3D Model Ultra Librarian LM2576BU CAD Model

Description

Microchip Technology's LM2576BU - A Robust Voltage Regulator

The LM2576BU from Microchip Technology is a highly efficient, easy-to-use voltage regulator that comes in a versatile TO-220-5 package. This regulator is part of the LM2576 series, known for providing all the active functions necessary for a step-down (buck) switching regulator capable of driving a 3A load with excellent line and load regulation.

Key Features:

  • Output Voltage: The LM2576BU offers an adjustable output voltage range from 1.23V to 37V, making it suitable for a wide array of applications.
  • High Efficiency: With a conversion efficiency of up to 92%, this device ensures minimal heat generation and is ideal for high-performance systems.
  • Load Current: It can support a load current of up to 3A, providing sufficient power for most moderate to high-power needs.
  • Thermal Shutdown and Current Limit: Built-in safety features such as thermal shutdown and current limit protect the device and the system from damage due to overheating and overcurrent conditions.
  • Simple Design: A simple external circuitry requirement makes the LM2576BU a favorite among designers looking for a straightforward solution with minimal external components.

Applications:

The versatility of the LM2576BU allows it to be used in various applications, including:

  • Simple high-efficiency step-down (buck) regulators
  • On-card switching regulators
  • Positive to negative converter (Buck-Boost)

Quality and Reliability:

Microchip Technology's commitment to quality ensures that the LM2576BU is a reliable component for your power supply designs. Its robustness and high efficiency make it an excellent choice for both commercial and industrial applications where performance and durability are critical.

Whether you're designing power supplies for consumer electronics, automotive, telecommunications, or industrial systems, the LM2576BU provides a compact, efficient, and reliable solution that meets a broad range of power requirements.

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