Hello, Welcome to Dasenic

Onsemi LM2576D2T-15G Environmental and export classification status description

The LM2576D2T-15G is a step-down (buck) voltage regulator IC designed to provide a stable output voltage of 15V from a higher input voltage source. It is part of the LM2576 family, which is known for its efficiency and integration capabilities within power management solutions. With its ability to deliver up to 3A of output current, the LM2576 is suitable for a variety of applications in power supply circuits. Functions - Step-down Voltage Regulation: Converts a higher DC input voltage to a lower DC output voltage. - Current Limiting: Integrated current limiting feature to protect against overcurrent conditions. - Thermal Shutdown: Protects the IC from overheating by shutting down under excessive temperature conditions. - High Efficiency: Offers efficiencies of up to 75% or more, depending on operating conditions. - Adjustable Output Voltage: While the LM2576D2T-15G is fixed at 15V, the family also offers variable output options. Applications - Power Supplies: Commonly used in switch-mode power supplies for electronic devices. - Battery Chargers: Can be utilized in applications where stable voltage is required for charging batteries. - LED Drivers: Suitable for driving LED arrays from a higher voltage source. - Distributed Power Systems: Provides a regulated voltage for sub-systems in various electronic designs. Alternative Parts If you are looking for alternative parts to the LM2576D2T-15G, consider the following: - LM2576-ADJ: Adjustable output version for more flexibility. - LM2596: Another buck converter with similar specifications and different output voltage options. - LM2675: Compact version for smaller form factor applications. - LMT860: Provides similar functionality with advanced features. Embedded Modules Several embedded modules may incorporate the LM2576D2T-15G for ease of integration into projects, including: - Buck Converter Modules: Ready-to-use modules based on the LM2576 that provide various fixed outputs. - DC-DC Converter Boards: Modules featuring the LM2576 along with necessary passive components for straightforward implementation in prototyping. Related Q&A 1. Q: What is the input voltage range for the LM2576D2T-15G? A: The LM2576D2T-15G can accept input voltages from 40V down to a minimum of 5V, making it versatile for various applications. 2. Q: What is the maximum output current that this regulator can provide? A: The LM2576D2T-15G is capable of delivering up to 3A of output current under optimal conditions. 3. Q: Can I use the LM2576D2T-15G for powering LED strips? A: Yes, the LM2576D2T-15G can be used to power LED strips, provided that the input voltage is suitable and does not exceed the IC's specifications. 4. Q: What are some recommended input/output capacitors for the LM2576? A: It is recommended to use a 100µF electrolytic capacitor at the input and a 220µF electrolytic capacitor at the output to ensure stable operation. 5. Q: Is it necessary to consider cooling for the LM2576D2T-15G? A: Yes, depending on the load current and duty cycle, proper heat dissipation methods (such as adding a heatsink) may be necessary to prevent thermal shutdown.