L7987TR

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L7987TR

+BOM

IC REG BUCK ADJ 3A 16HTSSOP

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Specifications

Attribute Value
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

Overview

Description

"L7987TR" appears to be a specific code or identifier, but without additional context, it's unclear what it specifically refers to. It could be related to a product model, a technical standard, a course code, a part number, or something else entirely. To provide a concise introduction:
If "L7987TR" is a product, such as an electronic component or device, it would typically include an overview of its purpose, key features, specifications, and potential applications.
- Purpose: Explanation of the primary function or use.
- Key Features: Highlight important characteristics or capabilities.
- Specifications: Technical details such as size, compatibility, or performance parameters.
- Applications: Typical scenarios or industries where it can be used.
For a course or educational material, it would include the course objectives, key topics covered, and potential career or skill benefits.
Please provide more context for a more accurate and tailored introduction.

Equivalent

The L7987TR is a monolithic step-down switching regulator from STMicroelectronics. Equivalent products that offer similar functionality include:
1. Texas Instruments LM2675 - Step-down voltage regulator.
2. ON Semiconductor MC34063 - Switching regulator with adjustable output.
3. Microchip Technology MCP16301 - High-efficiency step-down regulator.
4. Diodes Incorporated AP63203 - Synchronous buck converter.
5. Analog Devices ADP2300 - Step-down DC-DC regulator.
These alternatives are selected based on similar specifications and functionalities. Always verify electrical characteristics for compatibility with your application.

Features

The L7987TR is a step-down switching voltage regulator, designed for high-efficiency conversions. Here are some key features:
1. Input Voltage Range: It supports a wide input voltage range, typically from 4.5V to 61V, making it versatile for various applications.

2. Output Voltage: The regulator can provide an adjustable output voltage down to 0.6V, allowing flexibility based on the requirements of the application.
3. Output Current: It can deliver up to 3A of continuous output current, suitable for powering medium-power devices.
4. Efficiency: The device is designed for high efficiency, often exceeding 90%, which helps in reducing power loss and thermal stress.
5. Switching Frequency: It operates at a fixed switching frequency, typically around 250 kHz, enabling a compact design with smaller external components.
6. Protection Features: The L7987TR includes protection mechanisms such as overcurrent, overtemperature, and output short-circuit protection, enhancing reliability.
7. Soft Start: It features a programmable soft-start function to limit inrush current during start-up.
8. Applications: Commonly used in industrial, automotive, and consumer electronics applications for efficient power management.
These features make the L7987TR a reliable choice for diverse power regulation needs.

Pinout

The L7987TR is a step-down switching regulator from STMicroelectronics. It is typically housed in a small package with 8 pins. Here is a brief overview of its pin count and function:
1. Pin 1 (VIN): Input voltage supply pin; accepts a wide input voltage range, typically from 4.5V to 38V.
2. Pin 2 (EN): Enable pin; used to enable or disable the device.
3. Pin 3 (FB): Feedback pin; connected to the external resistor divider to set the output voltage.
4. Pin 4 (COMP): Compensation pin; used for stability and dynamic response optimization via external components.
5. Pin 5 (GND): Ground pin.
6. Pin 6 (FREQ): Frequency setting pin; can be used to set the switching frequency with an external resistor.
7. Pin 7 (BOOT): Bootstrap pin; supplies power to the high-side driver.
8. Pin 8 (SW): Switch output pin; connected to the inductor and drives the output load.
The L7987TR is a high-efficiency, reliable choice for applications requiring a compact and efficient DC-DC conversion solution.

Manufacturer

The L7987TR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. These products are used across various applications, such as automotive, industrial, personal electronics, communications equipment, and computers. The company is known for its expertise in semiconductor solutions and its commitment to innovation and sustainability. As a leading player in the semiconductor industry, STMicroelectronics focuses on providing solutions that enable smarter, more efficient, and environmentally friendly technologies.

Application

The L7987TR is a step-down switching regulator designed for use in various applications requiring efficient power conversion. Key areas include:
1. Consumer Electronics: Power management for gadgets like smartphones, tablets, and laptops.
2. Industrial Automation: Used in control systems and machinery requiring regulated power.
3. Telecommunications: Supports equipment like routers and modems needing stable voltage.
4. Automotive: Powers electronic systems in vehicles, including infotainment and navigation.
5. LED Lighting: Provides efficient current regulation for LED drivers.
6. Embedded Systems: Supplies power to microcontrollers and processing units in IoT devices.
Its wide input voltage range and high efficiency make it suitable for any application needing reliable DC-DC conversion.

Package

The L7987TR is typically offered in a SO-8 package, which is a small outline integrated circuit package with eight pins. This package type is known for its compact size and is commonly used for surface mounting on printed circuit boards.

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