사양
| 속성 | 가치 |
| Package | Tube |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Not For New Designs |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 12V |
| Current-Output | 1A |
| Frequency-Switching | 52kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Through Hole |
| Package/Case | TO-220-5 |
개요
Description
The LM2575T-12 is a fixed-output voltage regulator from the LM2575 series, designed for efficient and simple implementation of step-down (buck) voltage conversion. It provides a stable 12V output from a higher DC input voltage, supporting inputs up to 40V. This device can deliver up to 1A of load current, making it suitable for a variety of applications requiring a reliable 12V supply.
Key features include a built-in switch, high efficiency up to 88%, and a wide input voltage range, which reduces the need for external components. The LM2575T-12 also offers protection features such as thermal shutdown, current limiting, and a fixed-frequency oscillator to ensure reliable operation.
Housed in a TO-220 package, this regulator is easy to integrate into existing systems. Its straightforward design makes it an excellent choice for applications in consumer electronics, power management, and industrial automation where a consistent 12V output is necessary.
Key features include a built-in switch, high efficiency up to 88%, and a wide input voltage range, which reduces the need for external components. The LM2575T-12 also offers protection features such as thermal shutdown, current limiting, and a fixed-frequency oscillator to ensure reliable operation.
Housed in a TO-220 package, this regulator is easy to integrate into existing systems. Its straightforward design makes it an excellent choice for applications in consumer electronics, power management, and industrial automation where a consistent 12V output is necessary.
Equivalent
The LM2575T-12 is a step-down (buck) voltage regulator. Equivalent products include:
1. LM2596T-12 Higher output current capability.
2. MC34063: Lower power applications.
3. L7805: Fixed output voltage, lesser current.
4. LMR16006: Smaller size, integrated MOSFET.
5. TPS54331: Higher efficiency, compact.
When selecting an equivalent, consider output current, efficiency, package type, and additional features.
1. LM2596T-12 Higher output current capability.
2. MC34063: Lower power applications.
3. L7805: Fixed output voltage, lesser current.
4. LMR16006: Smaller size, integrated MOSFET.
5. TPS54331: Higher efficiency, compact.
When selecting an equivalent, consider output current, efficiency, package type, and additional features.
Features
The LM2575T-12 is a step-down (buck) voltage regulator with the following key features:
1. Output Voltage: It provides a fixed output voltage of 12V.
2. Input Voltage Range: It operates with an input voltage range of 4V to 40V.
3. Output Current: Delivers up to 1A of continuous output current.
4. Efficiency: High efficiency, typically around 88%, which reduces heat generation.
5. Switching Frequency: Operates at a fixed frequency of 52 kHz, reducing noise and interference.
6. Simple Design: Requires minimal external components, easing the design process.
7. Thermal Shutdown: Equipped with thermal shutdown protection to prevent overheating.
8. Current Limiting: Includes current limiting features to safeguard against overcurrent conditions.
9. Wide Operating Temperature Range: Functions reliably from -40°C to +125°C.
10. Versatility: Suitable for a variety of applications, including automotive, industrial, and consumer electronics.
These features make the LM2575T-12 a versatile and reliable choice for efficient voltage regulation in numerous applications.
1. Output Voltage: It provides a fixed output voltage of 12V.
2. Input Voltage Range: It operates with an input voltage range of 4V to 40V.
3. Output Current: Delivers up to 1A of continuous output current.
4. Efficiency: High efficiency, typically around 88%, which reduces heat generation.
5. Switching Frequency: Operates at a fixed frequency of 52 kHz, reducing noise and interference.
6. Simple Design: Requires minimal external components, easing the design process.
7. Thermal Shutdown: Equipped with thermal shutdown protection to prevent overheating.
8. Current Limiting: Includes current limiting features to safeguard against overcurrent conditions.
9. Wide Operating Temperature Range: Functions reliably from -40°C to +125°C.
10. Versatility: Suitable for a variety of applications, including automotive, industrial, and consumer electronics.
These features make the LM2575T-12 a versatile and reliable choice for efficient voltage regulation in numerous applications.
Pinout
The LM2575T-12 is a step-down (buck) voltage regulator with a fixed output voltage of 12V. It typically comes in a 5-pin TO-220 package. Here's a brief description of each pin and its function:
1. VIN (Pin 1): Input voltage pin, where the supply voltage is connected. It can handle input voltages up to 40V.
2. VOUT (Pin 2): Output voltage pin, providing the regulated 12V output.
3. GND (Pin 3): Ground pin, serving as the common ground reference for the input and output.
4. Feedback (Pin 4): For the adjustable version, this would be used to set the output voltage, but in the fixed-version like LM2575T-12, it’s internally connected to the output.
5. ON/OFF (Pin 5): Allows the regulator to be turned on or off. A logic level high disables the output, while a logic level low enables it.
The LM2575T-12 is capable of delivering up to 1A of output current and is used in various applications that require a reliable and efficient voltage regulation.
1. VIN (Pin 1): Input voltage pin, where the supply voltage is connected. It can handle input voltages up to 40V.
2. VOUT (Pin 2): Output voltage pin, providing the regulated 12V output.
3. GND (Pin 3): Ground pin, serving as the common ground reference for the input and output.
4. Feedback (Pin 4): For the adjustable version, this would be used to set the output voltage, but in the fixed-version like LM2575T-12, it’s internally connected to the output.
5. ON/OFF (Pin 5): Allows the regulator to be turned on or off. A logic level high disables the output, while a logic level low enables it.
The LM2575T-12 is capable of delivering up to 1A of output current and is used in various applications that require a reliable and efficient voltage regulation.
Manufacturer
The LM2575T-12 is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of semiconductor products, including integrated circuits and embedded processors. The company serves various industries, such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is known for its innovation and quality in the semiconductor industry, focusing on developing technologies that support efficient power management, signal processing, and connectivity.
Application
The LM2575T-12 is a versatile voltage regulator commonly used in various applications due to its efficient step-down (buck) conversion. Typical application areas include:
1. Consumer Electronics: Used in power supply circuits for devices like televisions, radios, and set-top boxes.
2. Industrial Automation: Powers control units, sensors, and other components within industrial machinery.
3. Automotive Systems: Suitable for automotive electronics where stable power is required.
4. Communication Equipment: Powers routers, modems, and other networking devices.
5. Embedded Systems: Provides a stable power source for microcontrollers and peripheral devices in embedded applications.
6. LED Drivers: Used in circuits driving LED lighting solutions.
Its ease of use and reliability make it suitable for these and other low to medium power applications.
1. Consumer Electronics: Used in power supply circuits for devices like televisions, radios, and set-top boxes.
2. Industrial Automation: Powers control units, sensors, and other components within industrial machinery.
3. Automotive Systems: Suitable for automotive electronics where stable power is required.
4. Communication Equipment: Powers routers, modems, and other networking devices.
5. Embedded Systems: Provides a stable power source for microcontrollers and peripheral devices in embedded applications.
6. LED Drivers: Used in circuits driving LED lighting solutions.
Its ease of use and reliability make it suitable for these and other low to medium power applications.
Package
The LM2575T-12 is a voltage regulator with a TO-220 package type. This package is a through-hole type, known for its good thermal performance and ease of mounting. The "T" in its designation indicates the TO-220 packaging.
