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LP2951CSD/NOPB

Name: LP2951CSD/NOPB
Rating: 4.7 (12 reviews)

IC REG LIN POS ADJ 100MA 8-WSON

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規格

Part Status	Active
Output Configuration	Positive
Output Type	Adjustable (Fixed)
Number of Regulators	1
Voltage - Input (Max)	30V
Voltage - Output (Min/Fixed)	1.235V (5V)
Voltage - Output (Max)	29V
Voltage Dropout (Max)	0.6V @ 100mA
Current - Output	100mA
Current - Quiescent (Iq)	120 µA
Control Features	Enable
Protection Features	Over Current, Over Temperature, Short Circuit
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount
Package / Case	8-WDFN Exposed Pad
Supplier Device Package	8-WSON (4x4)
Base Product Number	LP2951
Current - Supply (Max)	14 mA

概述

Description

The LP2951CSD/NOPB is a low-dropout (LDO) voltage regulator designed for a range of applications such as portable devices, microcontrollers, and other sensitive electronics. It offers a fixed output voltage of 5V and has a low dropout voltage, allowing it to maintain regulation even with minimal headroom between input and output voltages.
Key features include a low quiescent current, high output current capability (up to 1A), and built-in thermal shutdown and current limiting for protection. The LP2951CSD/NOPB also provides excellent load and line regulation, making it suitable for battery-powered applications where efficiency is crucial.
The part is housed in a compact surface-mount SOIC package, which facilitates integration into space-constrained designs. Its ease of use, combined with stable output and high performance, makes it a popular choice for engineers looking to implement reliable power management solutions in various electronic systems.

Features

The LP2951CSD/NOPB is a low-dropout (LDO) voltage regulator designed for various applications. Key features include:
1. Output Voltage: Adjustable or fixed output options (typically 5V or 3.3V).
2. Low Dropout Voltage: Typically around 0.1V at 100mA load, enabling efficient operation.
3. High Output Current: Capable of delivering up to 1A of load current.
4. Low Quiescent Current: Provides improved efficiency, especially in battery-powered applications.
5. Protection Features: Includes thermal shutdown and current limiting for enhanced reliability.
6. Fast Transient Response: Ensures stable output during load changes.
7. Wide Input Voltage Range: Accepts input voltages from 3V to 30V.
8. Package: Available in a surface-mount SO-8 package for easy integration.
These features make the LP2951CSD/NOPB suitable for powering microcontrollers, sensors, and other electronic devices requiring stable voltage regulation.

Package

The LP2951CSD/NOPB is packaged in a Surface Mount Device (SMD) type known as the SOT-223. This package type is compact and suitable for applications where space-saving is essential.

Pinout

The LP2951CSD/NOPB is a low-dropout (LDO) voltage regulator with a pin count of 5. The functions of its pins are as follows:
1. Input (Vin): Connects to the input voltage source.
2. Ground (GND): Connects to the system ground.
3. Output (Vout): Provides the regulated output voltage.
4. Adjust (Adj): Used for setting the output voltage in adjustable versions (not used in fixed-output configurations).
5. Shutdown (SHDN): An optional pin to enable or disable the output.
The device is designed to provide a stable output voltage with low dropout, making it suitable for battery-powered applications.

Manufacturer

The LP2951CSD/NOPB is manufactured by Texas Instruments (TI), a prominent technology company based in the United States. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits for a wide range of applications, including automotive, industrial, communications, and consumer electronics. Founded in 1930, TI is well-known for its innovation in analog and embedded processing technologies, providing solutions that enable the development of advanced electronic systems. The LP2951 is a low-dropout voltage regulator, highlighting TI's focus on providing efficient power management solutions.

Application

The LP2951CSD/NOPB is a low dropout voltage regulator primarily used in power management applications. Its application areas include powering microcontrollers, sensors, and analog circuits in battery-operated devices, automotive electronics, and telecommunications equipment. It also serves in portable electronics, where efficient voltage regulation is crucial for extended battery life, and in various consumer electronics for stable power supply.

Equivalent

The LP2951CSD/NOPB is a low-dropout voltage regulator. Equivalent products include the LM1084, MCP1700, MIC5205, and LT1085. These alternatives may vary in output voltage specifications, current ratings, and dropout voltage characteristics, so ensure to check the specific requirements for your application.