LP2951ACM

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LP2951ACM

IC REG LIN POS ADJ 100MA 8SOIC

  • Manufacturer
  • Mfr. Part #LP2951ACM
  • Package SOIC (D)-8
  • Datasheet
  • In Stock6555

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Specifications

Package Bulk,Tube
ProductStatus Not For New Designs
OutputConfiguration Positive
OutputType Adjustable (Fixed)
NumberofRegulators 1
Voltage-Input(Max) 30V
Voltage-Output(Min/Fixed) 1.235V (5V)
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)

Overview

Description

The LP2951ACM is a low-dropout voltage regulator designed for applications requiring a stable output voltage and low power consumption. It is part of the LP2951 series, which is known for its precision, low quiescent current, and versatility. This regulator can deliver an output current of up to 100 mA and features a dropout voltage of approximately 0.5 V at full load, making it suitable for battery-powered devices.
Key features of the LP2951ACM include an adjustable output voltage (from 1.235 V to 29 V), a high output voltage accuracy, and a low quiescent current of around 75 µA, which is particularly beneficial for extending battery life in portable applications. It also includes features such as current and thermal limiting, and a shutdown mode to further conserve energy.
The LP2951ACM is commonly used in a wide range of applications, including microprocessor power supplies, instrumentation, and automotive electronics due to its reliability and efficient performance. Its compact size (commonly available in SOIC or TO-92 packages) makes it suitable for space-constrained designs.

Features

The LP2951ACM is a low-dropout voltage regulator with several key features:
1. Output Voltage: It typically offers an adjustable output voltage, which can be set using external resistors.
2. Low Dropout Voltage: It has a low dropout voltage, making it efficient when operating with minimal input-output voltage differential.
3. Quiescent Current: The device features low quiescent current, which is beneficial for battery-powered applications.
4. Output Current: It can provide a moderate output current, suitable for various applications.
5. Precision Reference: The regulator includes an accurate voltage reference, ensuring stable output voltage.
6. Shutdown Function: It typically supports a shutdown mode to reduce power consumption when not in use.
7. Error Flag: An error flag function is available to indicate output status, useful for system monitoring.
8. Thermal Protection: It includes thermal overload protection to prevent damage from overheating.
9. Short-Circuit Protection: The regulator is designed to handle short-circuit conditions without damage.
10. Package Options: The LP2951ACM is available in various package options to suit different application needs.
These features make the LP2951ACM suitable for applications requiring reliable voltage regulation with low power consumption.

Package

The LP2951ACM is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package is compact, making it suitable for surface mounting on PCBs.

Pinout

The LP2951ACM is a low dropout voltage regulator with an 8-pin configuration. Here's a brief overview of its pin functions:
1. Pin 1: Error (ERR) - An open-collector output that indicates when the output voltage is out of regulation.
2. Pin 2: Input (IN) - The input pin where the unregulated voltage is applied.
3. Pin 3: Ground (GND) - The ground reference pin for the device.
4. Pin 4: Shutdown (SHDN) - An active-low input to turn off the regulator, reducing the quiescent current.
5. Pin 5: Feedback (FB) - Used for setting the output voltage by connecting it to a resistor divider.
6. Pin 6: Output Voltage (OUT) - The regulated output voltage pin.
7. Pin 7: Sense (SENSE) - A pin used to improve regulation by reducing the impact of voltage drops across the load.
8. Pin 8: No Connection (NC) - Typically left unconnected or used for mechanical support.
These pins enable the LP2951ACM to provide precise voltage regulation with low dropout, making it suitable for battery-powered applications.

Manufacturer

The LP2951ACM is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits. TI is one of the largest global producers in the semiconductor industry and supplies products to electronics designers and manufacturers worldwide. The company is known for its innovation and extensive portfolio of semiconductor products, which include analog chips and embedded processors.

Application

The LP2951ACM is a low-dropout voltage regulator commonly used in applications requiring efficient power management. Its primary application areas include battery-powered devices, microcontroller power supplies, and portable electronics. It is well-suited for systems needing precise voltage regulation, such as sensor networks, communication devices, and embedded systems. Its low quiescent current and precise voltage reference make it ideal for energy-sensitive applications. Additionally, its built-in features like current and thermal limiting enhance its reliability in various electronic designs.

Equivalent

The LP2951ACM is a low-dropout voltage regulator. Equivalent products include the LM2931, MIC2951, and MCP1825. Ensure compatibility by verifying specifications such as output voltage, current capability, package type, and specific features like enable pins or thermal protections. Always consult the datasheets for precise comparisons.

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