規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Adjustable (Fixed) |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 30V |
| Voltage-Output(Min/Fixed) | 1.235V (5V) |
| Voltage-Output(Max) | 30V |
| 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-WFDFN Exposed Pad |
概述
Description
The LP2951-50DRGR is a low-dropout (LDO) voltage regulator designed for applications requiring a stable and precise 5V output from a higher input voltage source. Manufactured by Texas Instruments, this device is part of the LP2951 series, known for its low quiescent current, making it ideal for battery-powered applications. The "DRGR" suffix indicates its packaging type and reel size, with the device typically offered in a surface-mount SOP (Small Outline Package).
Key features of the LP2951-50DRGR include low dropout voltage, typically around 380 mV at 100 mA output current, and high accuracy output voltage, with a typical tolerance of ±0.5%. It includes a shutdown mode for energy conservation, an error flag to warn of output voltage deviations, and a programmable output current limit. The device also provides thermal and overload protection to ensure reliable operation. Its versatility and reliability make it suitable for a wide range of applications, from consumer electronics to industrial equipment.
Key features of the LP2951-50DRGR include low dropout voltage, typically around 380 mV at 100 mA output current, and high accuracy output voltage, with a typical tolerance of ±0.5%. It includes a shutdown mode for energy conservation, an error flag to warn of output voltage deviations, and a programmable output current limit. The device also provides thermal and overload protection to ensure reliable operation. Its versatility and reliability make it suitable for a wide range of applications, from consumer electronics to industrial equipment.
Equivalent
The LP2951-50DRGR is a low-dropout voltage regulator. Equivalent products include:
1. LM2951 by Texas Instruments
2. MIC2951 by Microchip Technology
3. MCP1825 by Microchip Technology
4. LD1117 by STMicroelectronics
5. TLV1117 by Texas Instruments
These alternatives offer similar voltage regulation features, but specifications like output current, package type, and dropout voltage should be checked for compatibility with your application.
1. LM2951 by Texas Instruments
2. MIC2951 by Microchip Technology
3. MCP1825 by Microchip Technology
4. LD1117 by STMicroelectronics
5. TLV1117 by Texas Instruments
These alternatives offer similar voltage regulation features, but specifications like output current, package type, and dropout voltage should be checked for compatibility with your application.
Features
The LP2951-50DRGR is a low-dropout voltage regulator from Texas Instruments, known for its efficiency and precision in supplying a stable output voltage. Some key features include:
1. Output Voltage: It provides a regulated output voltage of 5.0V.
2. Low Dropout Voltage: The regulator has a low dropout voltage, typically 380 mV at a 100 mA load, which enhances efficiency and performance in battery-powered applications.
3. Output Current: It supports output currents up to 100 mA.
4. Accuracy: High output voltage accuracy with typical tolerance of ±0.5%.
5. Quiescent Current: Low quiescent current of approximately 75 μA which helps in power saving.
6. Protection Features: Includes overcurrent and thermal shutdown protection for enhanced reliability.
7. Shutdown Mode: Offers a shutdown mode that reduces power consumption to virtually zero.
8. Package: Available in a 8-pin MSOP package, suitable for space-constrained applications.
9. Temperature Range: Operates over a wide temperature range, making it suitable for various environments.
These features make the LP2951-50DRGR an ideal choice for applications requiring efficient power regulation with minimal power loss.
1. Output Voltage: It provides a regulated output voltage of 5.0V.
2. Low Dropout Voltage: The regulator has a low dropout voltage, typically 380 mV at a 100 mA load, which enhances efficiency and performance in battery-powered applications.
3. Output Current: It supports output currents up to 100 mA.
4. Accuracy: High output voltage accuracy with typical tolerance of ±0.5%.
5. Quiescent Current: Low quiescent current of approximately 75 μA which helps in power saving.
6. Protection Features: Includes overcurrent and thermal shutdown protection for enhanced reliability.
7. Shutdown Mode: Offers a shutdown mode that reduces power consumption to virtually zero.
8. Package: Available in a 8-pin MSOP package, suitable for space-constrained applications.
9. Temperature Range: Operates over a wide temperature range, making it suitable for various environments.
These features make the LP2951-50DRGR an ideal choice for applications requiring efficient power regulation with minimal power loss.
Pinout
The LP2951-50DRGR is a micropower voltage regulator with a specific output voltage of 5.0V. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here’s a brief overview of its pin functions:
1. Vout: Output voltage pin providing the regulated 5.0V output.
2. GND: Ground connection for the regulator.
3. Vin: Input voltage pin where the unregulated input voltage is applied.
4. FB (Feedback): Allows for adjustable output voltage configurations by connecting to a resistor divider.
5. Shutdown Input (SHDN): Used to enable or disable the regulator.
6. Error Output (ERROR): Provides a signal when the output voltage is out of regulation.
7. N/C (No Connect): May be present and is typically not connected internally.
8. Bypass: (If present) Used to bypass the internal reference for noise reduction.
The LP2951 series is known for low quiescent current and good regulation characteristics, often used in battery-powered applications. Make sure to check the datasheet for precise pin functions as they can vary slightly depending on the exact package and variant.
1. Vout: Output voltage pin providing the regulated 5.0V output.
2. GND: Ground connection for the regulator.
3. Vin: Input voltage pin where the unregulated input voltage is applied.
4. FB (Feedback): Allows for adjustable output voltage configurations by connecting to a resistor divider.
5. Shutdown Input (SHDN): Used to enable or disable the regulator.
6. Error Output (ERROR): Provides a signal when the output voltage is out of regulation.
7. N/C (No Connect): May be present and is typically not connected internally.
8. Bypass: (If present) Used to bypass the internal reference for noise reduction.
The LP2951 series is known for low quiescent current and good regulation characteristics, often used in battery-powered applications. Make sure to check the datasheet for precise pin functions as they can vary slightly depending on the exact package and variant.
Manufacturer
The LP2951-50DRGR is manufactured by Texas Instruments, a company known for designing and manufacturing semiconductors and various integrated circuits. Texas Instruments is a leading technology company headquartered in Dallas, Texas, and it operates globally. The company specializes in developing analog chips and embedded processors, which are used in a wide range of electronic devices and industries, including automotive, industrial, personal electronics, communications equipment, and more. Texas Instruments is recognized for its innovation and contributions to the electronics industry, providing products that help engineers develop new applications and improve existing technologies.
Application
The LP2951-50DRGR is a low-power voltage regulator commonly used in applications requiring precision voltage regulation. Its application areas include battery-powered devices, power management systems, portable instrumentation, and embedded systems. It is well-suited for microcontrollers and digital signal processors due to its low dropout voltage and low quiescent current. Additionally, it finds use in telecommunications equipment, automotive electronics, and industrial control systems where stable voltage output is critical under varying load conditions. Its features, such as programmable output, error flag, and shutdown capability, make it versatile for diverse electronic applications.
Package
The LP2951-50DRGR is a low-dropout voltage regulator from Texas Instruments, available in a surface-mount package known as SOIC-8 (Small Outline Integrated Circuit with 8 leads). This package type is ideal for applications requiring a compact and efficient power management solution.
