圖片僅供參考
規格
| 屬性 | 價值 |
| Manufacturer | onsemi |
| Package | TO-263 |
概述
Description
The LM2576D2T-5 is a step-down (buck) voltage regulator designed to provide a stable output voltage of 5V. It is part of the LM2576 series, known for its efficiency and simplicity in power regulation applications. The device can handle input voltages up to 40V and deliver a maximum output current of 3A, making it suitable for various applications such as power supplies for microcontrollers, sensors, and other electronics.
Key features include thermal shutdown, short-circuit protection, and a wide operating temperature range. The LM2576D2T-5 operates at a switching frequency of 52kHz, allowing for smaller external components, which is ideal for compact designs. Its ease of use and minimal external components required for implementation make it a popular choice among engineers for designing power management circuits. Additionally, it comes in a TO-263 package, which aids in heat dissipation and reliability.
Key features include thermal shutdown, short-circuit protection, and a wide operating temperature range. The LM2576D2T-5 operates at a switching frequency of 52kHz, allowing for smaller external components, which is ideal for compact designs. Its ease of use and minimal external components required for implementation make it a popular choice among engineers for designing power management circuits. Additionally, it comes in a TO-263 package, which aids in heat dissipation and reliability.
Equivalent
Equivalent products to the LM2576D2T-5 include the LM2576-5.0, LM2596-5.0, and LM2576-ADJ. These are all step-down (buck) voltage regulators with similar output voltage capabilities and current ratings. Ensure to check the specifications for differences in features such as thermal performance, dropout voltage, and package type, as these can vary among manufacturers.
Features
The LM2576D2T-5 is a step-down (buck) voltage regulator designed to provide a stable output voltage of 5V. Key features include:
1. Output Current: Supports output currents up to 3A.
2. Input Voltage Range: Operates from 4V to 40V input voltage.
3. Efficiency: High efficiency, often exceeding 75% under typical load conditions.
4. Integrated Protection: Includes thermal shutdown and current limiting features for enhanced reliability.
5. Fixed Output: Provides a fixed output voltage of 5V, simplifying design for applications requiring this voltage level.
6. Switching Frequency: Operates at a fixed switching frequency of 52 kHz, which helps minimize the size of external components.
7. TO-220 Package: Available in a TO-220 package for easy heat dissipation.
8. Applications: Suitable for various applications such as power supplies for microcontrollers, LED drivers, and battery chargers.
These features make the LM2576D2T-5 a versatile choice for efficient voltage regulation in electronic circuits.
1. Output Current: Supports output currents up to 3A.
2. Input Voltage Range: Operates from 4V to 40V input voltage.
3. Efficiency: High efficiency, often exceeding 75% under typical load conditions.
4. Integrated Protection: Includes thermal shutdown and current limiting features for enhanced reliability.
5. Fixed Output: Provides a fixed output voltage of 5V, simplifying design for applications requiring this voltage level.
6. Switching Frequency: Operates at a fixed switching frequency of 52 kHz, which helps minimize the size of external components.
7. TO-220 Package: Available in a TO-220 package for easy heat dissipation.
8. Applications: Suitable for various applications such as power supplies for microcontrollers, LED drivers, and battery chargers.
These features make the LM2576D2T-5 a versatile choice for efficient voltage regulation in electronic circuits.
Pinout
The LM2576D2T-5 is a step-down voltage regulator from Texas Instruments with a pin count of 5. Its primary function is to provide a stable output voltage of 5V while efficiently converting higher input voltages, typically ranging from 7V to 40V.
Pinout and Functions:
1. Pin 1 (Vin): Input voltage supply.
2. Pin 2 (GND): Ground connection.
3. Pin 3 (Vout): Regulated output voltage (5V).
4. Pin 4 (Feedback): Feedback pin for voltage regulation; connects to an external resistor divider.
5. Pin 5 (Switch): Internal switching node to control the output voltage.
The LM2576D2T-5 is known for its high efficiency and ease of use in power supply applications.
Pinout and Functions:
1. Pin 1 (Vin): Input voltage supply.
2. Pin 2 (GND): Ground connection.
3. Pin 3 (Vout): Regulated output voltage (5V).
4. Pin 4 (Feedback): Feedback pin for voltage regulation; connects to an external resistor divider.
5. Pin 5 (Switch): Internal switching node to control the output voltage.
The LM2576D2T-5 is known for its high efficiency and ease of use in power supply applications.
Manufacturer
The LM2576D2T-5 is manufactured by Texas Instruments (TI), a leading semiconductor company headquartered in Dallas, Texas. Texas Instruments specializes in designing and manufacturing a wide range of semiconductor and integrated circuit solutions, including analog, digital signal processing, and microcontroller products. The company is known for its innovation and technology in various sectors, including automotive, industrial, communications, and consumer electronics. TI's products are widely used in applications such as power management, signal processing, and data conversion. The LM2576 is a step-down (buck) voltage regulator, commonly utilized for its efficiency in power supply design. Texas Instruments has a strong reputation in the industry for quality and reliability in their semiconductor solutions.
Application
The LM2576D2T-5 is a step-down (buck) voltage regulator that is widely used in various applications, including:
1. Power Supply Systems: Converting higher voltages (up to 40V) to lower voltages (5V) for various electronic devices.
2. Battery Chargers: Regulating voltage for charging batteries with specific voltage requirements.
3. LED Drivers: Supplying consistent voltage for LED lighting applications.
4. Microcontroller Power Supplies: Providing stable power to microcontrollers and other digital circuits.
5. Telecommunications Equipment: Powering devices in telecommunication systems that require regulated voltage.
Its efficiency and ease of use make it suitable for both consumer electronics and industrial applications.
1. Power Supply Systems: Converting higher voltages (up to 40V) to lower voltages (5V) for various electronic devices.
2. Battery Chargers: Regulating voltage for charging batteries with specific voltage requirements.
3. LED Drivers: Supplying consistent voltage for LED lighting applications.
4. Microcontroller Power Supplies: Providing stable power to microcontrollers and other digital circuits.
5. Telecommunications Equipment: Powering devices in telecommunication systems that require regulated voltage.
Its efficiency and ease of use make it suitable for both consumer electronics and industrial applications.
Package
The LM2576D2T-5 is packaged in a TO-263 surface-mount package. This type of package is designed for efficient heat dissipation and is suitable for compact applications.
