LP2951CMX

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LP2951CMX

IC REG LIN POS ADJ 100MA 8SOIC

  • 제조업체
  • Mfr.부분 #LP2951CMX
  • 패키지 8-SOIC
  • 데이터시트
  • 재고 있음7651

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사양

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Obsolete
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)

개요

Description

The LP2951CMX is a low-power voltage regulator designed for applications requiring efficient power management. It is part of the LP2951 series, known for its precision and versatility. This device offers an output voltage that is programmable, supporting a range from 1.25V to 29V, with a factory-preset version available at specific voltages for convenience. It features a low dropout voltage, typically around 380 mV at 100 mA, making it suitable for battery-powered and low-voltage applications.
Key features include a low quiescent current, typically 75 µA, which reduces to 1 µA in shutdown mode, enhancing battery life in portable devices. The LP2951CMX also incorporates a number of safety features such as short-circuit current limiting and thermal overload protection. Its error flag warns of output voltage out of regulation, while the shutdown input allows for remote on/off control.
This regulator is packaged in a surface-mount configuration, promoting ease of integration into various PCB designs. Its reliability and efficiency make it a popular choice for use in consumer electronics, automotive, and industrial applications where power efficiency and stability are critical.

Features

The LP2951CMX is a low-dropout voltage regulator from Texas Instruments, designed for applications requiring precise output voltage control. Key features include:
1. Output Voltage Options: Adjustable output voltage ranging from 1.235V to 29V, with fixed options available for common voltages.
2. Low Dropout Voltage: Typically 380 mV at 100 mA, which is crucial for low voltage applications.
3. Low Quiescent Current: Approximately 75 µA typical, enabling efficient power usage, especially in battery-powered devices.
4. Current Limiting and Thermal Protection: Protects against output over-current and excessive power dissipation.
5. Error Flag Output: Indicates output voltage status, useful for microcontroller-based systems.
6. Shutdown Capability: A dedicated pin allows the regulator to be turned off to save power.
7. Reverse Battery Protection: Prevents damage if battery connections are reversed.
8. Package Options: Available in various package types, including SOIC and TO-92, offering flexibility for different design needs.
These features make the LP2951CMX suitable for a wide range of applications including portable instruments, microcontroller power supplies, and battery-powered equipment.

Package

The LP2951CMX is typically available in a surface-mount SOIC-8 (Small Outline Integrated Circuit) package. This package type is compact, making it suitable for applications where space is a constraint.

Pinout

The LP2951CMX is a low-dropout (LDO) voltage regulator. It typically comes in an 8-pin package, such as the SOIC-8. Here is a brief overview of its pin functions:
1. VOUT (Output): Regulated output voltage.
2. GND (Ground): Common ground for input and output.
3. VIN (Input): Input voltage supply.
4. Shutdown (SHDN): Active low input to turn off the regulator.
5. Feedback (FB): Used to set the output voltage in adjustable versions.
6. Sense: Improves load regulation when remotely sensing the output voltage.
7. Error Output (ERROR): Indicates if the output voltage is within a specified range.
8. Bypass (BP): Connects to an external capacitor to improve noise performance.
These functions allow the LP2951CMX to operate efficiently with low dropout voltage and provide features like shutdown control and error output for monitoring.

Manufacturer

The LP2951CMX is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of integrated circuits and other electronics components. They serve various industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is known for its focus on innovation and engineering expertise, providing solutions that enable customers to improve performance, reduce system complexity, and lower costs.

Application

The LP2951CMX is a low-dropout voltage regulator commonly used in applications requiring efficient power management. Its primary application areas include battery-powered devices, where low quiescent current and low dropout voltage are crucial for extending battery life. It is also used in portable electronics, microcontroller power supplies, and precision analog circuits, where stable and reliable voltage regulation is essential. Additionally, the LP2951CMX is suitable for use in industrial and automotive applications due to its wide input voltage range and thermal protection features.

Equivalent

The LP2951CMX is a low-dropout voltage regulator. Equivalent products include the LM2951, TL750L, and MCP1702, among others. When selecting an equivalent, consider parameters like output voltage, current rating, dropout voltage, and package type to ensure compatibility.

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