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LD2981ABM50TR

Name: LD2981ABM50TR
Rating: 4.7 (12 reviews)

IC REG LINEAR 5V 100MA SOT23-5

Производитель
Мфр. Часть #LD2981ABM50TR
Пакет
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Спецификации

Part Status	Active
Output Configuration	Positive
Output Type	Fixed
Number of Regulators	1
Voltage - Input (Max)	16V
Voltage - Output (Min/Fixed)	5V
Voltage Dropout (Max)	0.375V @ 100mA
Current - Output	100mA
Current - Quiescent (Iq)	150 µA
PSRR	63dB (1kHz)
Control Features	Enable
Protection Features	Over Current, Over Temperature
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
Base Product Number	LD2981
Current - Supply (Max)	2.6 mA

Обзор

Description

The LD2981ABM50TR is a low-dropout (LDO) voltage regulator designed to provide a stable output voltage with high precision. It features a fixed output voltage of 5.0V and is capable of delivering up to 1.5A of output current. The device is known for its low dropout voltage, which allows it to function effectively even when the input voltage is only slightly higher than the output voltage.
Key features include a wide input voltage range, typically from 4.5V to 20V, and built-in protection mechanisms such as overcurrent, thermal shutdown, and short-circuit protection, ensuring reliability and safety in various applications. The LD2981ABM50TR is commonly used in consumer electronics, telecommunications, and automotive power supplies where efficient voltage regulation is critical.
Packaged in a small form factor, it allows for efficient thermal dissipation and easy integration into compact designs. Overall, the LD2981ABM50TR is suitable for applications requiring reliable and efficient voltage regulation.

Features

The LD2981ABM50TR is a low-dropout (LDO) voltage regulator designed for efficient power management in various applications. Key features include:
- Output Voltage: Fixed output of 5V with a tolerance of ±1%.
- Dropout Voltage: Low dropout voltage (typically 300mV at 1A), allowing for efficient operation even with minimal input-output voltage differences.
- Output Current: Capable of sourcing up to 1.5A of output current.
- Thermal Protection: Integrated thermal shutdown to prevent damage under overheating conditions.
- Current Limiting: Short-circuit protection through current limiting to enhance reliability.
- Stability: Requires only a small output capacitor for stability, simplifying circuit design.
- Operating Temperature: Suitable for a wide temperature range, typically from -40°C to +125°C.
- Package: Available in a compact SO-8 package for space-efficient designs.
This LDO is ideal for powering microcontrollers, sensors, and other low-voltage devices in consumer electronics, automotive, and industrial applications.

Package

The LD2981ABM50TR is packaged in a DPAK (TO-252) type package. This package features a surface-mount design suitable for various applications, providing efficient thermal performance and space-saving characteristics.

Pinout

The LD2981ABM50TR is a low-dropout (LDO) voltage regulator from STMicroelectronics. It features a pin count of 5.
The functions of the pins are as follows:
1. Input (VIN) - This pin is for the input voltage that the regulator will convert.
2. Output (VOUT) - This pin provides the regulated output voltage.
3. Ground (GND) - This pin connects to the ground reference of the circuit.
4. Enable (EN) - This pin is used to enable or disable the output; a high voltage turns the regulator on.
5. Feedback (FB) - This pin is used for voltage feedback to maintain the desired output voltage.
The LD2981ABM50TR typically provides a fixed output of 5V and is designed for applications requiring low dropout voltage and high output current capabilities.

Manufacturer

The LD2981ABM50TR is manufactured by STMicroelectronics, a global semiconductor company. STMicroelectronics specializes in the design, development, and manufacturing of a wide range of semiconductor products, including analog, digital, and mixed-signal devices. The company serves various sectors such as automotive, industrial, consumer electronics, and communication. Founded in 1987, STMicroelectronics has a strong presence in the market, known for its commitment to innovation and quality in semiconductor technology.

Application

The LD2981ABM50TR is a low-dropout (LDO) voltage regulator commonly used in applications requiring stable voltage supply, such as power management in consumer electronics, telecommunications, automotive systems, and portable devices. It provides low noise and high output current capability, making it suitable for powering analog circuits, microcontrollers, and RF devices, where precise voltage regulation is essential.

Equivalent

The LD2981ABM50TR is a low-dropout voltage regulator. Equivalent products include:
1. LP2981 from Texas Instruments
2. LM1117 series from Texas Instruments
3. LT1085 from Analog Devices
4. MIC2940 from Microchip Technology
Always verify specific electrical characteristics and package types to ensure compatibility with your application.

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