LM2576R-5.0

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LM2576R-5.0

+BOM

IC REG BUCK 5V 3A TO263-5L

365 1일 품질 보증

7*24 영업 시간 서비스 보증

90-판매 후 1일 보증

정품 보증

사양

속성 가치
Series SIMPLE SWITCHER®
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Voltage - Input (Max) 40V
Voltage - Output (Min / Fixed) 5V
Current - Output 3A
Frequency - Switching 52kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package TO-263-5L

개요

Description

The LM2576R-5.0 is a monolithic integrated switching voltage regulator designed for efficient and simple power management in various electronic applications. It is part of the LM2576 series, known for its ability to deliver a stable 5V output with a guaranteed output current of up to 3A. The device employs a fixed-frequency (52 kHz) pulse-width modulation (PWM) mode, allowing it to maintain a high conversion efficiency, typically around 80-90%, and minimize power losses.
The LM2576R-5.0 offers features such as thermal shutdown, current limiting, and an internal frequency compensation, enhancing its robustness and reliability. It also supports a wide input voltage range, typically from 7V to 40V, making it versatile for various applications. The fixed output voltage simplifies design requirements, eliminating the need for external feedback components.
This regulator is suitable for applications like power supplies for embedded systems, industrial equipment, and battery-powered devices, where efficient and reliable voltage conversion is crucial. Its ease of use, minimal external components, and high performance make it popular among engineers and designers.

Equivalent

The LM2576R-5.0 is a step-down voltage regulator IC. Equivalent products include the LM2596-5.0, L4970A, MC34063, and the TPS54331, which offer similar functionalities such as fixed 5V output and adjustable output options. Ensure compatibility with your specific requirements such as input voltage, output current, efficiency, and thermal performance when selecting an equivalent.

Features

The LM2576R-5.0 is a popular monolithic integrated circuit designed for step-down (buck) voltage regulation. Here are its key features:
1. Output Voltage: It provides a fixed output voltage of 5.0V.
2. Input Voltage Range: Operates with input voltages from 7V to 40V.
3. Output Current: Capable of delivering up to 3A of output current.
4. Efficiency: High efficiency, typically up to 90%, due to its switching regulator design.
5. Switching Frequency: Operates at a fixed frequency of 52 kHz.
6. Internal Oscillator: Provides consistent switching frequency.
7. Thermal Shutdown: Includes thermal protection to prevent overheating.
8. Current Limiting: Built-in current limiting feature to protect against overload.
9. Low Standby Current: Features low standby current for better power saving.
10. Feedback and Compensation: Simplified design with internal frequency compensation and fixed feedback voltage reference.
11. Protection Circuits: Includes protection against short circuits and excessive temperatures.
These features make the LM2576R-5.0 suitable for a variety of applications, including power supplies and battery-powered devices.

Pinout

The LM2576R-5.0 is a fixed-output voltage regulator with a 5V output and is part of the LM2576 series of simple switcher regulators. It is a 5-pin TO-220 package. Here are the pin functions:
1. Pin 1 (VIN): This is the input voltage pin where the unregulated input voltage is applied. The device can handle input voltages up to 40V.

2. Pin 2 (OUTPUT): This pin provides the regulated output voltage of 5V.
3. Pin 3 (GROUND): This serves as the ground reference for the entire circuit.
4. Pin 4 (FEEDBACK): This pin is used for feedback to maintain voltage regulation. For the fixed 5V version, it is internally connected and typically does not require external components.
5. Pin 5 (ON/OFF): This pin is used to enable or disable the regulator. When connected to ground, the regulator is enabled. If a positive voltage is applied, the regulator is turned off.
The LM2576R-5.0 is widely used for efficient step-down (buck) voltage regulation.

Manufacturer

The LM2576R-5.0 is a voltage regulator manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits and microcontrollers. The company is known for its focus on innovation and providing solutions for various industries such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI’s products are widely used in applications like power management, signal processing, and embedded processing, making it a key player in the electronics and semiconductor industry.

Application

The LM2576R-5.0 is a voltage regulator used in various applications requiring efficient power conversion. Key application areas include:
1. Buck Converter Circuits: Used in step-down voltage regulation for power supply in electronic devices.
2. Power Management Systems: Employed in systems requiring stable 5V output, such as microcontroller and microprocessor power supplies.
3. Battery-Powered Devices: Ensures efficient power conversion to extend battery life.
4. Industrial Automation: Provides reliable power for sensors and control units.
5. Consumer Electronics: Used in power supply circuits for devices like set-top boxes and gaming consoles.
6. Telecommunications: Powers communication equipment with stable voltage.
These applications benefit from the LM2576R-5.0's high efficiency, simplicity, and low component count.

Package

The LM2576R-5.0 is typically available in a TO-220 package, which is a through-hole package with three pins. This package is commonly used for voltage regulators and power management ICs due to its ability to dissipate heat effectively.

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