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L7987TR
IC REG BUCK ADJ 3A 16HTSSOP
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- 製造商。 部分 #L7987TR
- 包 HTSSOP-16
- 資料表 L7987TR DataSheet
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規格
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 61V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 61V |
| Current-Output | 3A |
| Frequency-Switching | 250kHz ~ 1.5MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 16-TSSOP (0.173, 4.40mm Width) Exposed Pad |
概述
Description
L7987TR doesn't appear to be a widely recognized term, product, or concept as of my last update. It might be a specific model number, part code, or designation from a particular industry such as electronics, automotive, or another technical field. Without additional context, it is challenging to provide a precise introduction.
If L7987TR is a technical component, like a semiconductor or a microcontroller, it's often essential to refer to datasheets or product manuals provided by the manufacturer for detailed information. These documents typically include specifications, applications, pin configurations, and other critical details. For precise guidance or an introduction tailored to your needs, please provide more context or consult relevant technical literature or resources associated with L7987TR.
If L7987TR is a technical component, like a semiconductor or a microcontroller, it's often essential to refer to datasheets or product manuals provided by the manufacturer for detailed information. These documents typically include specifications, applications, pin configurations, and other critical details. For precise guidance or an introduction tailored to your needs, please provide more context or consult relevant technical literature or resources associated with L7987TR.
Features
The L7987TR is a DC-DC step-down switching regulator from STMicroelectronics. Here are its key features:
1. Wide Input Voltage Range: It operates with an input voltage range from 4.5V to 61V, making it versatile for various applications.
2. Output Voltage: The device can be configured to provide a fixed or adjustable output voltage down to 0.6V.
3. Output Current: It is capable of delivering up to 3A of output current.
4. Efficiency: The regulator is designed for high efficiency, which can reach up to 95%, thanks to its synchronous rectification.
5. Switching Frequency: The L7987TR supports a selectable switching frequency up to 1 MHz, allowing for compact design and reduced component size.
6. Synchronization: It offers an external synchronization feature to align the switching frequency with system requirements.
7. Soft-Start and Enable: The device includes a soft-start feature to prevent inrush current and an enable pin for easy on/off control.
8. Protection Features: It includes overvoltage, overcurrent, and thermal shutdown protections to ensure safe operation.
These features make the L7987TR suitable for various applications, including industrial, automotive, and consumer electronics.
1. Wide Input Voltage Range: It operates with an input voltage range from 4.5V to 61V, making it versatile for various applications.
2. Output Voltage: The device can be configured to provide a fixed or adjustable output voltage down to 0.6V.
3. Output Current: It is capable of delivering up to 3A of output current.
4. Efficiency: The regulator is designed for high efficiency, which can reach up to 95%, thanks to its synchronous rectification.
5. Switching Frequency: The L7987TR supports a selectable switching frequency up to 1 MHz, allowing for compact design and reduced component size.
6. Synchronization: It offers an external synchronization feature to align the switching frequency with system requirements.
7. Soft-Start and Enable: The device includes a soft-start feature to prevent inrush current and an enable pin for easy on/off control.
8. Protection Features: It includes overvoltage, overcurrent, and thermal shutdown protections to ensure safe operation.
These features make the L7987TR suitable for various applications, including industrial, automotive, and consumer electronics.
Package
The L7987TR is typically available in a HTSSOP package, which is designed for surface mounting in electronic devices. This package type is compact, providing efficient thermal performance and is commonly used for integrated circuits that require a small footprint on a PCB.
Pinout
The L7987TR is a step-down switching voltage regulator from STMicroelectronics. It typically comes in a compact HTSSOP16 package, which means it has 16 pins. The key functions of this device include:
1. Input Voltage Pin: Accepts a wide input voltage range, typically from 4.5V to 36V.
2. Output Voltage Pin: Provides a regulated output voltage, which can be adjusted via an external resistor divider.
3. Feedback Pin: Used to connect the resistor divider from the output to set the desired output voltage.
4. Enable Pin: Allows the device to be turned on or off.
5. Switching Frequency Pin: Allows setting or synchronization of the switching frequency.
6. Compensation Pin: Used for frequency compensation and stability of the control loop.
7. Ground Pin: Common return path for input and output.
8. Bootstrap Pin: Used to drive the gate of the high-side MOSFET.
9. Power Ground Pin: Direct connection to the ground plane for handling high current paths.
The L7987TR is designed for high-efficiency power conversion, ideal for DC-DC conversion in various applications.
1. Input Voltage Pin: Accepts a wide input voltage range, typically from 4.5V to 36V.
2. Output Voltage Pin: Provides a regulated output voltage, which can be adjusted via an external resistor divider.
3. Feedback Pin: Used to connect the resistor divider from the output to set the desired output voltage.
4. Enable Pin: Allows the device to be turned on or off.
5. Switching Frequency Pin: Allows setting or synchronization of the switching frequency.
6. Compensation Pin: Used for frequency compensation and stability of the control loop.
7. Ground Pin: Common return path for input and output.
8. Bootstrap Pin: Used to drive the gate of the high-side MOSFET.
9. Power Ground Pin: Direct connection to the ground plane for handling high current paths.
The L7987TR is designed for high-efficiency power conversion, ideal for DC-DC conversion in various applications.
Manufacturer
The L7987TR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that develops and produces a wide range of electronic components and integrated circuits. The company specializes in providing solutions for various applications, including automotive, industrial, personal electronics, and communications. Their products span microcontrollers, sensors, power management devices, and more, serving a diverse set of industries and technological needs. STMicroelectronics is known for its innovation and commitment to sustainability, leveraging its expertise to drive advancements in electronics and contribute to the broader technology ecosystem.
Application
The L7987TR is a step-down switching regulator. Its application areas include power management for automotive electronics, industrial systems, and consumer electronics. It is used in DC-DC conversion for efficient power supply regulation in battery-powered devices, microcontrollers, and communication systems. Its features like low quiescent current and high efficiency make it suitable for applications requiring power optimization and energy savings.
Equivalent
The L7987TR is a step-down switching regulator from STMicroelectronics. Equivalent products include the LM2596 from Texas Instruments, the MP2307 from Monolithic Power Systems, and the AP1509 from Diodes Incorporated. These alternatives offer similar functionality in terms of output voltage regulation and efficiency, though specific features and parameters may vary. Always compare datasheets to ensure compatibility with your application's requirements.
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