LD2981ABU50TR

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LD2981ABU50TR

IC REG LINEAR 5V 100MA SOT89-3

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規格

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 16V
Voltage-Output(Min/Fixed) 5V
VoltageDropout(Max) 0.375V @ 100mA
Current-Output 100mA
Current-Quiescent(Iq) 150 µA
Current-Supply(Max) 2.6 mA
PSRR 63dB (1kHz)
ProtectionFeatures Over Current, Over Temperature
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case TO-243AA

概述

Description

The LD2981ABU50TR is a low-dropout (LDO) voltage regulator designed for applications requiring precise voltage output and low power consumption. This component is part of the LD2981 series, known for providing efficient voltage regulation with a minimal voltage drop between input and output, typically essential in battery-powered devices. The "50" in its designation indicates a fixed output voltage of 5.0 volts.
Key features of the LD2981ABU50TR include its ability to deliver a stable output with a dropout voltage of around 100 mV at light loads, and up to 200 mV at high loads, ensuring efficient operation even when the input voltage is marginally higher than the output. It offers excellent line and load regulation, which helps maintain a constant output voltage regardless of changes in input voltage or load current.
The "TR" usually indicates the component is provided in tape and reel packaging, suitable for automated assembly processes. Its small form factor makes it ideal for compact electronic applications, such as mobile devices and portable electronics, where space and power efficiency are critical.

Features

The LD2981ABU50TR is a low-dropout (LDO) voltage regulator. Key features include:
1. Output Voltage: Provides a fixed output voltage of 5.0V.
2. Low Dropout Voltage: The device offers very low dropout voltage, which is beneficial for applications requiring high efficiency.
3. Output Current: Capable of delivering up to 100mA output current.
4. Low Quiescent Current: It has low quiescent current, ideal for battery-powered devices.
5. Thermal Protection: Includes thermal shutdown protection to prevent damage from overheating.
6. Short-Circuit Protection: Comes equipped with short-circuit current limiting for enhanced reliability.
7. Stability with Low ESR Capacitors: Designed to be stable with low equivalent series resistance (ESR) output capacitors.
8. Compact Package: Supplied in a compact package, making it suitable for space-constrained applications.
9. Wide Operating Temperature Range: Operates effectively over a wide temperature range, enhancing versatility.
These features make the LD2981ABU50TR suitable for various applications, including battery-operated devices, portable products, and power management systems.

Package

The LD2981ABU50TR is a low-dropout voltage regulator packaged in a SOT-89 form factor.

Pinout

The LD2981ABU50TR is a low-dropout voltage regulator. It typically comes in a SOT-89 package which has a 3-pin configuration. The pins serve the following functions:
1. Pin 1 (Input): This pin is connected to the input voltage supply.
2. Pin 2 (Ground): This is the ground or negative reference pin.
3. Pin 3 (Output): This pin provides the regulated output voltage.
The LD2981ABU50TR is designed to provide a fixed output voltage of 5.0V and is capable of sourcing a maximum current of around 100mA. It is used in applications that require low dropout voltage and high precision regulation.

Manufacturer

The LD2981ABU50TR is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer headquartered in Geneva, Switzerland. It is one of the world's largest semiconductor companies, providing a wide range of products and solutions for various applications, including automotive, industrial, personal electronics, and communications equipment. The company is known for its research and development efforts, focusing on innovations in smart technologies and sustainable solutions.

Application

The LD2981ABU50TR is a low-dropout (LDO) voltage regulator. Its primary application areas include powering microcontrollers, sensors, and other digital circuits in portable and battery-operated devices. It is also used in consumer electronics, telecommunications equipment, and industrial automation systems where stable voltage supply is essential. Its low dropout voltage and low quiescent current make it ideal for energy-efficient applications.

Equivalent

The LD2981ABU50TR is a low-dropout (LDO) voltage regulator. Equivalent products include:
1. Microchip MCP1700-5002E/TO - A 5V LDO with similar characteristics.
2. Texas Instruments TLV755P - Offers low dropout and similar voltage regulation.
3. On Semiconductor NCP1117ST50T3G - A 5V LDO regulator with comparable performance.
4. Diodes Incorporated AP7333-50SG-13 - Low dropout voltage regulator with similar specs.
Always verify detailed specifications and pin compatibility before substituting.

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