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LM2575SX-ADJ
+BOMIC REG BUCK ADJ 1A TO263-5
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #LM2575SX-ADJ
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パッケージ TO-263 (KTT)-5
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在庫状況5784
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Not For New Designs |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.23V |
| Voltage-Output(Max) | 37V |
| Current-Output | 1A |
| Frequency-Switching | 52kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA |
概要
Description
The LM2575SX-ADJ is a versatile and efficient step-down (buck) voltage regulator from Texas Instruments. It is part of the LM2575 series, designed to provide a simple and cost-effective solution for DC-DC voltage conversion. The "ADJ" in its name indicates that this model has an adjustable output voltage, allowing users to set the desired output level using external resistors.
This regulator can handle an input voltage range from 4V to 40V and delivers a steady output current of up to 1A. With its high efficiency, typically around 88%, and a low component count, it is suitable for a variety of applications such as power supplies for microprocessors, battery chargers, and other electronic devices.
The LM2575SX-ADJ features built-in thermal shutdown protection, current limiting, and an automatic output transistor switch, enhancing its reliability. Its TO-263 surface-mount package ensures ease of integration into PCBs, making it ideal for compact designs. Overall, this regulator is favored for its versatility, reliability, and ease of use in adjustable voltage regulation applications.
This regulator can handle an input voltage range from 4V to 40V and delivers a steady output current of up to 1A. With its high efficiency, typically around 88%, and a low component count, it is suitable for a variety of applications such as power supplies for microprocessors, battery chargers, and other electronic devices.
The LM2575SX-ADJ features built-in thermal shutdown protection, current limiting, and an automatic output transistor switch, enhancing its reliability. Its TO-263 surface-mount package ensures ease of integration into PCBs, making it ideal for compact designs. Overall, this regulator is favored for its versatility, reliability, and ease of use in adjustable voltage regulation applications.
Equivalent
The LM2575SX-ADJ is a step-down (buck) voltage regulator. Equivalent products include:
1. MC34063 - A DC-DC converter with similar functionality.
2. LM2596 - Another popular buck converter with higher current capacity.
3. L7805 - A linear regulator with similar voltage regulation capabilities.
4. XL4015 - A 5A DC-DC buck converter module.
5. MP1584EN – A compact buck converter with adjustable output.
Ensure to check the specific requirements like input voltage range and output current when selecting an equivalent.
1. MC34063 - A DC-DC converter with similar functionality.
2. LM2596 - Another popular buck converter with higher current capacity.
3. L7805 - A linear regulator with similar voltage regulation capabilities.
4. XL4015 - A 5A DC-DC buck converter module.
5. MP1584EN – A compact buck converter with adjustable output.
Ensure to check the specific requirements like input voltage range and output current when selecting an equivalent.
Features
The LM2575SX-ADJ is a versatile adjustable voltage regulator that belongs to the LM2575 series. Key features include:
1. Adjustable Output Voltage: It allows the output voltage to be adjusted from 1.23V to 37V, providing flexibility for various applications.
2. High Efficiency: Capable of delivering up to 1A of output current with excellent efficiency, minimizing heat generation.
3. Wide Input Voltage Range: Operates over a wide input range from 4V to 40V, suitable for diverse power sources.
4. Fixed Switching Frequency: Features a fixed switching frequency of 52 kHz to simplify filtering and minimize noise.
5. Thermal Shutdown and Current Limit Protection: Includes built-in protection mechanisms to prevent damage due to overheating or overcurrent conditions.
6. Low Standby Current: Offers low standby current, enhancing efficiency in low-load or idle conditions.
7. Simple Design: Requires minimal external components, enabling straightforward design and quick implementation.
8. TO-263 Package: Available in a surface-mount package, facilitating compact and space-saving designs.
These features make the LM2575SX-ADJ suitable for a wide range of applications, including power supply designs for embedded systems and consumer electronics.
1. Adjustable Output Voltage: It allows the output voltage to be adjusted from 1.23V to 37V, providing flexibility for various applications.
2. High Efficiency: Capable of delivering up to 1A of output current with excellent efficiency, minimizing heat generation.
3. Wide Input Voltage Range: Operates over a wide input range from 4V to 40V, suitable for diverse power sources.
4. Fixed Switching Frequency: Features a fixed switching frequency of 52 kHz to simplify filtering and minimize noise.
5. Thermal Shutdown and Current Limit Protection: Includes built-in protection mechanisms to prevent damage due to overheating or overcurrent conditions.
6. Low Standby Current: Offers low standby current, enhancing efficiency in low-load or idle conditions.
7. Simple Design: Requires minimal external components, enabling straightforward design and quick implementation.
8. TO-263 Package: Available in a surface-mount package, facilitating compact and space-saving designs.
These features make the LM2575SX-ADJ suitable for a wide range of applications, including power supply designs for embedded systems and consumer electronics.
Pinout
The LM2575SX-ADJ is a simple switcher voltage regulator designed by Texas Instruments. It comes in a TO-263 package and has five pins. Here is a concise overview of the pin count and their functions:
1. VIN (Pin 1): This is the input pin where the positive supply voltage is applied. It can typically handle input voltages ranging from 4V to 40V.
2. Output (Pin 2): This pin provides the regulated output voltage. It is connected to the load that requires the regulated supply.
3. Ground (Pin 3): This pin is the ground reference for the circuit and should be connected to the negative terminal of the input supply.
4. Feedback (Pin 4): Used for setting the output voltage; it compares the output voltage to a reference voltage for regulation purposes. By connecting resistors to this pin, you can adjust the output voltage.
5. ON/OFF (Pin 5): This is an enable pin. By using a logic signal, you can turn the regulator on or off, allowing for power-saving in low-demand situations.
The LM2575SX-ADJ is capable of delivering up to 1A of output current with high efficiency.
1. VIN (Pin 1): This is the input pin where the positive supply voltage is applied. It can typically handle input voltages ranging from 4V to 40V.
2. Output (Pin 2): This pin provides the regulated output voltage. It is connected to the load that requires the regulated supply.
3. Ground (Pin 3): This pin is the ground reference for the circuit and should be connected to the negative terminal of the input supply.
4. Feedback (Pin 4): Used for setting the output voltage; it compares the output voltage to a reference voltage for regulation purposes. By connecting resistors to this pin, you can adjust the output voltage.
5. ON/OFF (Pin 5): This is an enable pin. By using a logic signal, you can turn the regulator on or off, allowing for power-saving in low-demand situations.
The LM2575SX-ADJ is capable of delivering up to 1A of output current with high efficiency.
Manufacturer
The LM2575SX-ADJ is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of analog and embedded processing chips. They are known for their innovation in electronic design and manufacturing, providing solutions across various markets such as industrial, automotive, personal electronics, communications equipment, and enterprise systems. TI's products are integral to the functioning of numerous electronic devices and systems, offering components that enhance performance, efficiency, and reliability.
Application
The LM2575SX-ADJ is a step-down voltage regulator that can be used in various applications. Key areas include power supply designs for embedded systems, battery-powered devices, and automotive applications. It's suitable for generating a regulated output voltage from a higher input voltage source. The adjustable output voltage feature makes it versatile for custom voltage requirements in industrial and consumer electronics. Additionally, it is used in systems requiring efficient power conversion, like communications equipment and portable devices. Its efficiency, simplicity, and flexibility make it ideal for DC-DC conversion in a wide range of applications.
Package
The LM2575SX-ADJ is a step-down voltage regulator in a TO-263 surface-mount package, also known as a D2PAK. This package type provides good thermal performance and is suitable for applications with limited space.
