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L7987

Name: L7987
Rating: 4.7 (12 reviews)

IC REG BUCK ADJ 3A 16HTSSOP

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製造商。部分 #L7987
包 HTSSOP16
資料表 L7987 DataSheet
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規格

Package	Tube
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

"L7987" could refer to a variety of things such as a course, a product, or a model number, as it isn't specifically identifiable without additional context. If it pertains to a course, "Introduction to L7987" likely serves as an overview or foundational class designed to familiarize students with key concepts, principles, or skills related to the subject or field denoted by "L7987." The course might cover the history, terminology, basic methodologies, and applications relevant to the topic. For a product or model number, "Introduction to L7987" might be a user guide or manual offering instructions on setup, operation, and maintenance, highlighting features and benefits. For accurate and specific information, more context about what "L7987" refers to would be necessary.

Package

The L7987 typically refers to a voltage regulator IC from STMicroelectronics, packaged in a commonly used form for such components. Most likely, it comes in a PowerSSO-36 package, which is designed to provide efficient thermal management and compact design for electronic circuits. For precise details, it's best to consult the datasheet from the manufacturer.

Pinout

The L7987 is a step-down switching regulator. It typically comes in a package with 8 pins. Here is a concise overview of its pin functions:
1. VIN: Input voltage pin where the supply voltage is applied.
2. SW: Switch output pin, connected to the inductor for energy transfer.
3. GND: Ground pin for the circuit.
4. FB: Feedback pin for voltage regulation, connected to an external resistor divider to set the output voltage.
5. COMP: Compensation pin for the error amplifier, used to stabilize the loop.
6. EN: Enable pin to turn the device on or off.
7. VCC: Internal supply voltage pin.
8. SYNC: Synchronization pin for external clock input.
These pins collectively support the L7987's function as a high-efficiency buck converter, designed for applications requiring a stable voltage output from a variable input source.

Manufacturer

The L7987 is manufactured by STMicroelectronics, a multinational electronics and semiconductor manufacturer. STMicroelectronics specializes in the design, development, and production of a wide range of semiconductor devices, including microcontrollers, sensors, and power management components. The company serves various industries, such as automotive, industrial, personal electronics, and communications equipment. STMicroelectronics is known for its innovation in semiconductor technologies and solutions that address the needs of its diverse customer base.

Application

The L7987 is a step-down switching regulator commonly used in applications requiring efficient power conversion and regulation. It is suitable for automotive electronics, industrial automation, and telecommunications equipment. Its ability to deliver high output current with low voltage ripple makes it ideal for powering microcontrollers, sensors, and other digital ICs. Additionally, its wide input voltage range and robust protection features make it useful in battery-powered devices and systems requiring reliable power management.

Equivalent

The L7987 is a step-down switching regulator from STMicroelectronics. Equivalent products might include:
1. Texas Instruments: LM2596, LM2678
2. Microchip Technology: MCP16301, MIC4576
3. ON Semiconductor: NCP3063, NCP5662
4. Analog Devices: ADP2300, LT8640
These equivalents may not match all specifications exactly, so always compare key parameters like input voltage range, output current, efficiency, and switching frequency.