LP2951CMX-3.3

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LP2951CMX-3.3

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IC REG LIN POS ADJ 100MA 8SOIC

  • FabricanteTexas Instruments

  • Peça do Fabricante #LP2951CMX-3.3

  • Pacote SOIC-8

  • Em Estoque5750

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Especificações

Atributo Valor
Package Tape & Reel (TR),Bulk
ProductStatus Obsolete
OutputConfiguration Positive
OutputType Adjustable (Fixed)
NumberofRegulators 1
Voltage-Input(Max) 30V
Voltage-Output(Min/Fixed) 1.235V (3.3V)
Voltage-Output(Max) 29V
VoltageDropout(Max) 0.6V @ 100mA
Current-Output 100mA
Current-Quiescent(Iq) 120 µA
Current-Supply(Max) 14 mA
ControlFeatures Enable
ProtectionFeatures Over Current, Over Temperature, Short Circuit
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Visão Geral

Description

The LP2951CMX-3.3 is a low-dropout (LDO) voltage regulator designed to provide a stable 3.3V output from a higher input voltage, suitable for various electronic applications. Its compact structure is ideal for portable and power-sensitive devices. This specific model, part of the LP2951 series, is known for its low quiescent current and low dropout voltage, making it highly efficient. It supports a wide input voltage range and offers features such as current and thermal limiting, which helps protect against overload and overheating. The device also includes a shutdown function for power-saving purposes and an error flag to indicate output regulation issues. Additionally, it comes in a variety of packages to accommodate different design needs. Its high precision and reliability make it popular in battery-powered gadgets, telecommunications, and other embedded systems requiring efficient power regulation. Overall, the LP2951CMX-3.3 stands out for its energy efficiency, protection features, and versatility in managing 3.3V power supplies.

Equivalent

The LP2951CMX-3.3 is a low-dropout voltage regulator. Equivalent products include:
1. MIC5205-3.3YM - Offers similar dropout voltage and current specifications.
2. TLV1117-33CDCY - Provides comparable voltage regulation with different package options.
3. MCP1703-3.3 - A cost-effective option with similar output voltage.
4. LM1117MP-3.3 - Has similar features and output voltage for various applications.
Ensure to compare specific parameters like dropout voltage, load current, and package type for compatibility.

Features

The LP2951CMX-3.3 is a low-dropout voltage regulator designed for power-sensitive applications. Key features include:
1. Output Voltage: Provides a fixed output of 3.3V.
2. Low Dropout: Capable of maintaining regulation with a low dropout voltage, typically around 380 mV at 100 mA.
3. Current Output: Supports a maximum output current of around 100 mA.
4. Accuracy: Offers high output voltage accuracy with a typical tolerance of ±1.5%.
5. Quiescent Current: Designed for low quiescent current, typically 75 µA, conserving power in standby mode.
6. Temperature Range: Operates effectively in a range from -40°C to +125°C, suitable for various environments.
7. Protection Features: Includes features like over-current protection and thermal shutdown to safeguard the device and connected loads.
8. Enable/Shutdown Pin: Facilitates external control for turning the regulator on/off to save energy.
9. Package: Available in a surface-mount package for compact designs, specifically in a SOIC-8 package type.
These features make the LP2951CMX-3.3 ideal for battery-powered and portable devices that require reliable and efficient voltage regulation.

Pinout

The LP2951CMX-3.3 is a low-dropout voltage regulator with a fixed output of 3.3V. It is typically available in an 8-pin SOIC package. Here is a brief overview of its pin functions:
1. GND: Ground connection. It is the reference point for the input and output voltages.
2. VIN: Input voltage. The voltage supplied to this pin is regulated down to 3.3V.
3. VOUT: Output voltage. This pin provides the regulated 3.3V output.
4. FB (Feedback): This pin is used for setting the output voltage when the device is used in an adjustable configuration. For the fixed 3.3V version, this pin is typically not used externally.
5. SHDN (Shutdown): When pulled low, this pin disables the regulator, reducing the quiescent current to a very low value.
6. Bypass: Used to connect a capacitor for noise reduction and improved transient response.
7. Error: This pin provides a logic indication of whether the output voltage is within specification.
8. NC (No Connect): Not internally connected; may be used for mechanical support.
This regulator is commonly used in battery-powered devices due to its low quiescent current and precise 3.3V output.

Manufacturer

The LP2951CMX-3.3 is manufactured by Texas Instruments. Texas Instruments, commonly abbreviated as TI, is an American technology company renowned for its innovations in the design and manufacture of semiconductors and integrated circuits. Founded in 1930, the company has established itself as a leader in the electronics industry, producing a wide range of products used in various applications, from consumer electronics to industrial equipment.
TI's core business involves the development of analog chips and embedded processors, which are integral to modern electronic devices. The company serves a diverse customer base in industries such as automotive, communications, industrial, and personal electronics. With its focus on innovation and quality, Texas Instruments has become a trusted name in the technology sector, contributing significantly to advancements in electronics and engineering.

Application

The LP2951CMX-3.3 is a low-dropout voltage regulator suitable for a variety of applications. Key areas include:
1. Battery-Powered Devices: Efficient power regulation extends battery life.
2. Portable Electronics: Provides stable power for smartphones, tablets, and wearables.
3. Microcontrollers and Microprocessors: Supplies consistent voltage for embedded systems.
4. Telecommunications Equipment: Ensures reliable performance in networking devices.
5. Industrial Automation: Used in control systems requiring precise voltage regulation.
6. Consumer Electronics: Powers devices like cameras and handheld gadgets.
Its features, such as low quiescent current and output voltage accuracy, make it ideal for these applications.

Package

The LP2951CMX-3.3 is a low-dropout voltage regulator that is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is compact and suitable for surface mounting on printed circuit boards, making it ideal for applications where space is limited.

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