Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Bulk,Tube |
| ProductStatus | Active |
| Function | Step-Up, Step-Down, Step-Up/Step-Down |
| OutputConfiguration | Positive or Negative |
| Topology | Buck, Boost, Buck-Boost |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.23V |
| Voltage-Output(Max) | 37V |
| Current-Output | 3A |
| Frequency-Switching | 150kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA |
Tổng quan
Description
The LM2596DSADJG is a monolithic integrated circuit ideally designed for step-down voltage regulation. It operates at a fixed switching frequency of 150 kHz and is capable of driving a 3A load with excellent line and load regulation. The device is specifically engineered for reducing input voltages in a range from 4.5V to 40V down to lower, regulated voltages.
Key features include a high-efficiency capability up to 92%, adjustable output voltage, and low standby current. The LM2596DSADJG also incorporates an internal frequency compensation and a fixed-frequency oscillator, simplifying the design and minimizing the number of external components required. Notable for its minimal heat generation, it reduces the need for extensive heatsinking.
This device is used often in applications requiring efficient power delivery, such as in battery chargers, consumer electronics, and distributed power systems. It is part of the LM2596 series, known for its robustness and reliability in various power regulation tasks.
Key features include a high-efficiency capability up to 92%, adjustable output voltage, and low standby current. The LM2596DSADJG also incorporates an internal frequency compensation and a fixed-frequency oscillator, simplifying the design and minimizing the number of external components required. Notable for its minimal heat generation, it reduces the need for extensive heatsinking.
This device is used often in applications requiring efficient power delivery, such as in battery chargers, consumer electronics, and distributed power systems. It is part of the LM2596 series, known for its robustness and reliability in various power regulation tasks.
Equivalent
The LM2596DSADJG is a step-down voltage regulator. Equivalent products include:
- LM2576: Similar functionality with slightly different specifications.
- MP1584: A compact step-down converter with similar voltage and current ratings.
- XL4015: Offers higher current capacity with similar voltage adjustment.
- L7805: A classic linear regulator alternative, though less efficient in buck conversion.
These alternatives may vary in efficiency, package, and additional features, so specifications should be checked for compatibility with your specific needs.
- LM2576: Similar functionality with slightly different specifications.
- MP1584: A compact step-down converter with similar voltage and current ratings.
- XL4015: Offers higher current capacity with similar voltage adjustment.
- L7805: A classic linear regulator alternative, though less efficient in buck conversion.
These alternatives may vary in efficiency, package, and additional features, so specifications should be checked for compatibility with your specific needs.
Features
The LM2596DSADJG is a versatile DC-DC buck converter designed for efficient power management. Key features include:
1. Wide Input Voltage Range: Operates from 4.5V to 40V, making it suitable for various applications.
2. Adjustable Output: Provides an adjustable output voltage, typically from 1.2V to 37V, depending on the external resistor configuration.
3. High Efficiency: Achieves high power conversion efficiency, typically up to 90%, reducing heat generation and improving performance.
4. Fixed Frequency Operation: Operates at a fixed 150 kHz switching frequency, which helps in minimizing external component sizes.
5. Output Current Capability: Can handle load currents up to 3A, supporting a wide range of power requirements.
6. Thermal Shutdown: Includes built-in protection against overheating.
7. Short Circuit Protection: Ensures safety and reliability by preventing damage during fault conditions.
8. Low Standby Current: Features a low quiescent current, which helps in improving battery life in portable devices.
These features make the LM2596DSADJG suitable for various applications, including battery-powered devices, industrial equipment, and automotive systems.
1. Wide Input Voltage Range: Operates from 4.5V to 40V, making it suitable for various applications.
2. Adjustable Output: Provides an adjustable output voltage, typically from 1.2V to 37V, depending on the external resistor configuration.
3. High Efficiency: Achieves high power conversion efficiency, typically up to 90%, reducing heat generation and improving performance.
4. Fixed Frequency Operation: Operates at a fixed 150 kHz switching frequency, which helps in minimizing external component sizes.
5. Output Current Capability: Can handle load currents up to 3A, supporting a wide range of power requirements.
6. Thermal Shutdown: Includes built-in protection against overheating.
7. Short Circuit Protection: Ensures safety and reliability by preventing damage during fault conditions.
8. Low Standby Current: Features a low quiescent current, which helps in improving battery life in portable devices.
These features make the LM2596DSADJG suitable for various applications, including battery-powered devices, industrial equipment, and automotive systems.
Pinout
The LM2596DSADJG is a voltage regulator from the LM2596 series, designed for step-down (buck) conversion. It typically comes in a 5-pin TO-263 surface mount package. The pin functions are as follows:
1. Input: This pin is connected to the unregulated DC input voltage.
2. Output: This pin provides the regulated DC output voltage.
3. Ground: This is the common ground pin for both the input and output voltage.
4. Feedback: This pin is used to set the output voltage. It senses the output voltage for regulation and is connected to the output via a resistor divider network.
5. ON/OFF (or Enable): This pin is used to turn the regulator on or off. Pulling this pin to a low voltage can disable the regulator to conserve power when not in use.
This device is widely used in power supply applications due to its efficiency and ease of use.
1. Input: This pin is connected to the unregulated DC input voltage.
2. Output: This pin provides the regulated DC output voltage.
3. Ground: This is the common ground pin for both the input and output voltage.
4. Feedback: This pin is used to set the output voltage. It senses the output voltage for regulation and is connected to the output via a resistor divider network.
5. ON/OFF (or Enable): This pin is used to turn the regulator on or off. Pulling this pin to a low voltage can disable the regulator to conserve power when not in use.
This device is widely used in power supply applications due to its efficiency and ease of use.
Manufacturer
The LM2596DSADJG is manufactured by Texas Instruments (TI), a prominent technology company based in the United States. Texas Instruments specializes in designing and manufacturing semiconductors and integrated circuits, which are used in a wide variety of electronic devices across various industries. TI is well-known for its innovation in the development of analog chips and embedded processors, which are crucial components in applications ranging from consumer electronics to automotive and industrial systems. Their products are integral to enhancing performance and efficiency in technology solutions worldwide.
Application
The LM2596DSADJG is a versatile DC-DC buck converter used in various applications requiring efficient voltage regulation. Key areas include:
1. Power Supply Solutions: Used in adjustable power supplies for delivering stable voltage outputs from varying input sources.
2. Consumer Electronics: Powers devices like TVs, radios, and computers by converting higher input voltage to suitable levels.
3. Industrial Equipment: Integral in motor drives, robotics, and control systems needing reliable power conversion.
4. Telecommunications: Stabilizes power in telecom equipment for consistent performance.
5. Battery-Powered Devices: Extends battery life by efficiently managing power consumption.
6. Automotive Electronics: Powers sensors, infotainment, and communication systems by providing necessary voltage levels from the vehicle battery.
1. Power Supply Solutions: Used in adjustable power supplies for delivering stable voltage outputs from varying input sources.
2. Consumer Electronics: Powers devices like TVs, radios, and computers by converting higher input voltage to suitable levels.
3. Industrial Equipment: Integral in motor drives, robotics, and control systems needing reliable power conversion.
4. Telecommunications: Stabilizes power in telecom equipment for consistent performance.
5. Battery-Powered Devices: Extends battery life by efficiently managing power consumption.
6. Automotive Electronics: Powers sensors, infotainment, and communication systems by providing necessary voltage levels from the vehicle battery.
Package
The LM2596DSADJG is a DC-DC step-down voltage regulator typically available in a TO-263 surface-mount package. This package type is suitable for applications requiring efficient thermal management and is designed for ease of mounting on PCBs.
