LP2981-50DBVR

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LP2981-50DBVR

IC REG LINEAR 5V 100MA SOT23-5

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規格

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
OutputConfiguration Positive
OutputType Fixed
NumberofRegulators 1
Voltage-Input(Max) 16V
Voltage-Output(Min/Fixed) 5V
VoltageDropout(Max) 0.37V @ 100mA
Current-Output 100mA
Current-Quiescent(Iq) 95 µA
Current-Supply(Max) 1.7 mA
PSRR 63dB (1kHz)
ControlFeatures Enable
ProtectionFeatures Over Current, Over Temperature, Short Circuit
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case SC-74A, SOT-753

概述

Description

The LP2981-50DBVR is a fixed-output low-dropout (LDO) voltage regulator designed by Texas Instruments. It delivers a stable output voltage of 5.0V with a maximum output current of 100 mA. Known for its low quiescent current and excellent line and load transient responses, the LP2981-50DBVR is ideal for battery-powered applications. Operating over a wide input voltage range, it features a dropout voltage below 1V, making it efficient for low-voltage systems. The device is commonly packaged in a small SOT-23-5 configuration, suitable for compact circuit designs. Additional features include overcurrent protection, thermal shutdown, and a precision bandgap reference to ensure reliability and performance. Its low noise operation and high power supply rejection ratio (PSRR) make it suitable for sensitive electronics and RF applications.

Features

The LP2981-50DBVR is a low-dropout (LDO) voltage regulator designed to provide a fixed output voltage of 5.0V. Key features include:
1. Low Dropout Voltage: It offers a low dropout voltage, typically around 350 mV at full load, which makes it suitable for battery-powered applications.
2. Output Current: It can deliver a maximum output current of 100 mA, ensuring sufficient power for various small to medium-sized electronic components.
3. Low Quiescent Current: The device is designed for high efficiency, with a low quiescent current of around 30 µA, helping extend battery life in portable applications.
4. Precision Output: The LP2981-50DBVR provides high accuracy with a typical output voltage tolerance of ±1.5%, ensuring reliable performance.
5. Wide Input Voltage Range: It supports an input voltage range from 2.1V to 16V, providing flexibility for use with different power sources.
6. Protection Features: The regulator includes internal protection features like overcurrent and thermal shutdown, which safeguard against damage under extreme conditions.
7. Compact Package: Available in a SOT-23 package, the LP2981-50DBVR is compact, making it ideal for space-constrained applications.
These features collectively make it suitable for applications in consumer electronics, wireless devices, and other portable equipment.

Package

The LP2981-50DBVR is a low-dropout (LDO) voltage regulator available in a SOT-23-5 package. This compact package is commonly used for surface-mount applications, providing efficient space utilization on printed circuit boards.

Pinout

The LP2981-50DBVR is a low-dropout (LDO) linear voltage regulator from Texas Instruments. It is packaged in a SOT-23-5 (Small Outline Transistor) configuration, meaning it has 5 pins. The main function of this device is to provide a stable 5V output voltage with low dropout from a higher input voltage.
Here's a brief overview of its pin functions:
1. VOUT (Pin 1): Output voltage pin where the regulated 5V output is available.
2. GND (Pin 2): Ground pin, the common reference for the input and output voltages.
3. EN (Pin 3): Enable pin to turn the regulator on or off. A high voltage enables the device.
4. VIN (Pin 4): Input voltage pin where the unregulated supply voltage is connected.
5. N/C (Pin 5): No connection or sometimes used for additional functionality like bypass capacitors, depending on specific manufacturer recommendations.
Overall, the LP2981-50DBVR is utilized in applications where a stable 5V output is needed from a higher input voltage with minimal power loss.

Manufacturer

The LP2981-50DBVR is manufactured by Texas Instruments. Texas Instruments (TI) is a globally recognized technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronic devices and applications. TI is known for its innovation and development in the field of electronics, offering a wide range of products including amplifiers, data converters, and power management tools. The company serves various markets, including industrial, consumer electronics, automotive, and communication sectors.

Application

The LP2981-50DBVR is a low-dropout (LDO) voltage regulator used in various applications requiring efficient power management. Its key application areas include portable devices, battery-powered equipment, and consumer electronics, where it provides stable voltage regulation. It is also utilized in wireless communication devices, PDAs, and medical instruments due to its low quiescent current and small form factor, making it suitable for space-constrained applications. Additionally, its low noise and high precision make it ideal for sensitive analog circuits and RF applications.

Equivalent

The LP2981-50DBVR is a low-dropout (LDO) voltage regulator. Equivalent products that serve similar functions include:
1. MIC5205-5.0YM5 from Microchip Technology
2. MCP1702-5002E/TO from Microchip Technology
3. NCP1117ST50T3G from ON Semiconductor
4. TLV1117-50CDCY from Texas Instruments
5. AMS1117-5.0 from Advanced Monolithic Systems
Ensure compatibility by checking specific parameters like output voltage, current rating, dropout voltage, and package type before substituting.

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