LM2574N-5G

圖片僅供參考

LM2574N-5G

+物料清單

IC REG BUCK BOOST 5V 500MA 8PDIP

365 天品質保證

7*24 小時服務保證

90-日售後保障

正品保證

規格

屬性 價值
Part Status Active
Function Step-Up, Step-Down, Step-Up/Step-Down
Output Configuration Positive or Negative
Topology Buck, Boost, Buck-Boost
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 4.75V
Voltage - Input (Max) 40V
Voltage - Output (Min / Fixed) 5V
Current - Output 500mA
Frequency - Switching 52kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
Supplier Device Package 8-PDIP
Base Product Number LM2574

概述

Description

The LM2574N-5G is a monolithic integrated circuit designed for step-down (buck) voltage regulation. It is part of the LM2574 series, known for its ease of use, reliability, and efficiency in converting higher DC input voltages to lower DC output voltages. Specifically, the "5G" variant outputs a fixed 5V from a wide range of input voltages, typically between 7V and 40V.
Key features of the LM2574N-5G include a 500mA output current capability, a high efficiency of up to 88%, and a fixed switching frequency of 52 kHz, which helps minimize external component size. It also incorporates thermal shutdown, current limiting, and an ON/OFF capability for efficient power management.
This regulator is ideal for applications needing a stable 5V output, such as power supplies in consumer electronics, automotive systems, and industrial control systems. Its DIP package format makes it easy to integrate into a variety of circuit designs. Overall, the LM2574N-5G provides a cost-effective and reliable solution for DC-DC conversion needs.

Equivalent

The LM2574N-5G is a step-down (buck) voltage regulator. Equivalent products include:
1. LM2594-5.0 by Texas Instruments
2. MC34063A by ON Semiconductor
3. L4973V5.1 by STMicroelectronics
4. NCP3063 by ON Semiconductor
These alternatives offer similar functionality, with potential differences in specifications like output current, package type, and efficiency. Always verify compatibility with your specific application requirements.

Features

The LM2574N-5G is a fixed-output voltage regulator known for its efficiency and ease of use. Key features include:
1. Fixed Output Voltage: Delivers a stable 5V output.
2. Wide Input Voltage Range: Operates efficiently across a wide range of input voltages, typically from 7V to 40V.
3. Efficiency: Offers high efficiency, reducing heat output and power consumption.
4. Output Current: Capable of driving up to 500 mA load current.
5. Operating Frequency: Has a fixed switching frequency of approximately 52 kHz.
6. Adjustable Versions Available: Can be configured for different output voltages with external resistors.
7. Thermal Shutdown: Protects the device from overheating.
8. Current Limiting: Includes built-in protection against overcurrent conditions.
9. Low Standby Current: Reduces power consumption when the device is not actively regulating.
10. Easy to Use: Minimal external components required, simplifying design and reducing costs.
These features make the LM2574N-5G suitable for a variety of applications that require efficient voltage regulation and reliability.

Pinout

The LM2574N-5G is a step-down voltage regulator with a fixed output voltage of 5V. It is commonly used in applications requiring efficient power conversion from higher input voltages to a stable 5V output. The device typically comes in an 8-pin DIP (Dual In-line Package) configuration. Here's a brief overview of the pin functions:
1. Pin 1 (Vin): Input supply voltage. It accepts the higher input voltage that needs to be regulated down to 5V.

2. Pin 2 (Output): The regulated 5V output voltage is provided at this pin.
3. Pin 3 (Ground): Common ground connection for the input and output, serving as the return path for the current.
4. Pin 4 (Feedback): While this pin is internally connected for fixed output versions like the LM2574N-5G, it is used for feedback in adjustable versions to set the output voltage.
5. Pin 5 (ON/OFF): This pin can be used to enable or disable the regulator. Connecting it to ground turns the regulator on, while a high logic level turns it off.
6. Pins 6, 7, 8 (NC - No Connect): These pins are typically not connected internally, providing no functional role.
This configuration ensures efficient voltage regulation with minimal external components.

Manufacturer

The LM2574N-5G is manufactured by ON Semiconductor, now known as onsemi. Onsemi is a global supplier of semiconductor solutions. The company produces a wide range of semiconductor components such as microcontrollers, power management devices, sensors, and integrated circuits, which are used in various industries, including automotive, industrial, communications, computing, and consumer electronics. Onsemi focuses on providing energy-efficient and sustainable solutions, enabling customers to reduce their carbon footprints while improving performance and reliability in their products.

Application

The LM2574N-5G is a step-down (buck) voltage regulator used in various applications requiring efficient power conversion. Key application areas include:
1. Embedded Systems: Provides regulated power for microcontrollers and processors.
2. Consumer Electronics: Powers devices like set-top boxes and handheld gadgets.
3. Industrial Automation: Supplies power to sensors and control systems.
4. Automotive: Powers dashboard electronics and infotainment systems.
5. Telecommunications: Used in networking equipment and base stations.
6. Battery-Powered Devices: Extends battery life in portable electronics.
7. LED Drivers: Regulates power for LED lighting solutions.
Its low component count and ease of design make it suitable for a wide range of applications where efficient and reliable power conversion is critical.

Package

The LM2574N-5G is a fixed-output voltage regulator from the LM2574 series, typically available in a standard through-hole 16-pin dual in-line package (DIP-16) or surface-mount packages like TO-263 or TO-220. It's designed for easy integration into circuit boards.

與LM2574N-5G相關的產品