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LM2587T-ADJ
IC REG BST FLYBCK ADJ 5A TO220-5
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規格
| Series | SIMPLE SWITCHER® |
| Part Status | Obsolete |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Boost, Flyback, Forward Converter |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.23V |
| Voltage - Output (Max) | 60V |
| Current - Output | 5A (Switch) |
| Frequency - Switching | 100kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Through Hole |
| Package / Case | TO-220-5 Formed Leads |
| Supplier Device Package | TO-220-5 |
| Base Product Number | LM2587 |
概述
Description
The LM2587T-ADJ is a high-performance step-down (buck) voltage regulator designed for applications requiring efficient DC-DC conversion. It features adjustable output voltage capability, allowing users to set the desired output between 1.23V and 37V using external resistors. This integrated circuit can deliver up to 3A of output current while maintaining a high efficiency of up to 90%, making it suitable for battery-powered devices and other power-sensitive applications.
Key features include a wide input voltage range (up to 40V), built-in overcurrent protection, thermal shutdown, and soft-start capabilities, which enhance reliability and user experience. The LM2587T-ADJ operates at a switching frequency of 100 kHz, allowing the use of smaller external components, thus reducing the overall size of the design.
It is commonly used in various applications, including power supplies for computers, telecommunications equipment, and automotive systems. Overall, the LM2587T-ADJ is an effective solution for efficient voltage regulation in diverse electronic circuits.
Key features include a wide input voltage range (up to 40V), built-in overcurrent protection, thermal shutdown, and soft-start capabilities, which enhance reliability and user experience. The LM2587T-ADJ operates at a switching frequency of 100 kHz, allowing the use of smaller external components, thus reducing the overall size of the design.
It is commonly used in various applications, including power supplies for computers, telecommunications equipment, and automotive systems. Overall, the LM2587T-ADJ is an effective solution for efficient voltage regulation in diverse electronic circuits.
Features
The LM2587T-ADJ is a step-down voltage regulator designed for efficient power conversion. Key features include:
1. Adjustable Output Voltage: The output voltage can be set from 1.23V to 37V, allowing flexibility for various applications.
2. High Efficiency: Offers efficiencies up to 90%, minimizing heat generation and improving overall thermal performance.
3. Output Current: Capable of delivering up to 3A of output current, suitable for a wide range of devices.
4. Wide Input Voltage Range: Accepts input voltages from 4.5V to 40V, accommodating various power supply scenarios.
5. Built-in Protection: Features include thermal shutdown, current limiting, and automatic recovery, enhancing reliability and safety.
6. Low Standby Current: It has a low quiescent current, which is beneficial for battery-operated devices.
7. Compact Package: Available in a TO-220 or surface-mount package, facilitating space-efficient designs.
These features make the LM2587T-ADJ ideal for applications in computer power supplies, automotive electronics, and industrial equipment.
1. Adjustable Output Voltage: The output voltage can be set from 1.23V to 37V, allowing flexibility for various applications.
2. High Efficiency: Offers efficiencies up to 90%, minimizing heat generation and improving overall thermal performance.
3. Output Current: Capable of delivering up to 3A of output current, suitable for a wide range of devices.
4. Wide Input Voltage Range: Accepts input voltages from 4.5V to 40V, accommodating various power supply scenarios.
5. Built-in Protection: Features include thermal shutdown, current limiting, and automatic recovery, enhancing reliability and safety.
6. Low Standby Current: It has a low quiescent current, which is beneficial for battery-operated devices.
7. Compact Package: Available in a TO-220 or surface-mount package, facilitating space-efficient designs.
These features make the LM2587T-ADJ ideal for applications in computer power supplies, automotive electronics, and industrial equipment.
Package
The LM2587T-ADJ is typically available in a TO-263 package, which is a surface-mount type. This package provides efficient thermal performance and compact size suitable for various applications.
Pinout
The LM2587T-ADJ is a step-down (buck) voltage regulator with a pin count of 8. Its primary functions are to convert an input voltage to a lower output voltage while maintaining high efficiency.
Pin Configuration:
1. VIN: Input voltage.
2. GND: Ground connection.
3. SW: Switch pin connected to the inductor.
4. COMP: Compensation pin for stability.
5. FB: Feedback pin for output voltage regulation.
6. ADJ: Adjustable output voltage setting.
7. VOUT: Output voltage.
8. NC: No connection, not used.
The device supports an adjustable output voltage range from 1.23V to 40V, with a maximum output current up to 3A. It also features internal compensation and a wide input voltage range, making it suitable for various applications, such as power supplies for microcontrollers and other electronic devices.
Pin Configuration:
1. VIN: Input voltage.
2. GND: Ground connection.
3. SW: Switch pin connected to the inductor.
4. COMP: Compensation pin for stability.
5. FB: Feedback pin for output voltage regulation.
6. ADJ: Adjustable output voltage setting.
7. VOUT: Output voltage.
8. NC: No connection, not used.
The device supports an adjustable output voltage range from 1.23V to 40V, with a maximum output current up to 3A. It also features internal compensation and a wide input voltage range, making it suitable for various applications, such as power supplies for microcontrollers and other electronic devices.
Manufacturer
The LM2587T-ADJ is manufactured by Texas Instruments (TI), a leading semiconductor company. Texas Instruments specializes in designing and manufacturing a wide range of analog and digital semiconductor devices, including integrated circuits (ICs), microcontrollers, and signal processing solutions. Founded in 1930 and headquartered in Dallas, Texas, TI serves various markets, including industrial, automotive, consumer electronics, and communications. The LM2587T-ADJ is a step-down voltage regulator, commonly used in power management applications due to its efficiency and capability to handle different loads. TI is known for its innovation and commitment to producing high-quality, reliable components that meet the needs of engineers and designers across multiple industries.
Application
The LM2587T-ADJ is a step-down (buck) voltage regulator commonly used in applications such as power supplies for desktop computers, industrial equipment, automotive systems, and battery-operated devices. It is suitable for converting higher input voltages to lower output voltages, providing efficient power management in consumer electronics, LED drivers, and telecom equipment. Its adjustable output makes it versatile for various voltage requirements.
Equivalent
The LM2587T-ADJ is a step-down (buck) voltage regulator. Equivalent products include:
1. LM2576 (fixed output versions available)
2. LM2596 (adjustable and fixed versions)
3. MIC5219 (low dropout regulator)
4. TPS5430 (Texas Instruments)
5. LM2675 (Texas Instruments)
Ensure to check the specifications for input/output voltage, current ratings, and other parameters for compatibility.
1. LM2576 (fixed output versions available)
2. LM2596 (adjustable and fixed versions)
3. MIC5219 (low dropout regulator)
4. TPS5430 (Texas Instruments)
5. LM2675 (Texas Instruments)
Ensure to check the specifications for input/output voltage, current ratings, and other parameters for compatibility.
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