仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | Automotive, AEC-Q100 |
| 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) | 30V |
| Voltage Dropout (Max) | 0.6V @ 100mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 120 µA |
| Current - Supply (Max) | 14 mA |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
The LP2951-50QDRQ1 is a precision voltage regulator designed by Texas Instruments. It is part of the LP2951 series, known for offering low dropout voltage and low quiescent current, making it suitable for battery-powered applications. This specific model is automotive-grade, adhering to AEC-Q100 standards, ensuring reliability in automotive environments.
The device provides a fixed output voltage of 5.0V with high accuracy, featuring a dropout voltage as low as 50mV at light loads. It has a typical quiescent current of 75µA, which conserves battery life. The regulator includes additional features such as error flags, a logic-compatible shutdown mode, and a programmable output current limit.
The LP2951-50QDRQ1 operates over a wide input voltage range and offers protection against overcurrent and overtemperature conditions. It comes in a small SOIC-8 package, allowing for efficient layout and compact design. This makes it ideal for automotive, industrial, and portable applications that require precision voltage regulation.
The device provides a fixed output voltage of 5.0V with high accuracy, featuring a dropout voltage as low as 50mV at light loads. It has a typical quiescent current of 75µA, which conserves battery life. The regulator includes additional features such as error flags, a logic-compatible shutdown mode, and a programmable output current limit.
The LP2951-50QDRQ1 operates over a wide input voltage range and offers protection against overcurrent and overtemperature conditions. It comes in a small SOIC-8 package, allowing for efficient layout and compact design. This makes it ideal for automotive, industrial, and portable applications that require precision voltage regulation.
Equivalent
The LP2951-50QDRQ1 is a low-dropout voltage regulator. Equivalent products include:
1. LM2951 - Texas Instruments
2. MIC2951 - Microchip Technology
3. LM2931 - STMicroelectronics
4. TL751L - Texas Instruments
These alternatives offer similar functionalities with minor variations in specifications and packaging. Always check the datasheets to ensure compatibility with your application's specific requirements.
1. LM2951 - Texas Instruments
2. MIC2951 - Microchip Technology
3. LM2931 - STMicroelectronics
4. TL751L - Texas Instruments
These alternatives offer similar functionalities with minor variations in specifications and packaging. Always check the datasheets to ensure compatibility with your application's specific requirements.
Features
The LP2951-50QDRQ1 is a versatile LDO (Low-Dropout) voltage regulator commonly used in automotive applications. Key features include:
1. Output Voltage: Provides a fixed output voltage of 5.0V.
2. Input Voltage Range: Operates with an input voltage range of up to 30V.
3. Low Dropout Voltage: Typically around 380 mV at a 100 mA load.
4. Quiescent Current: Low quiescent current, typically 75 μA, enhancing efficiency in battery-powered applications.
5. Output Current: Can deliver up to 100 mA of output current.
6. Temperature Range: Qualified for automotive use with a wide operating temperature range from -40°C to 125°C.
7. Protection Features: Includes thermal overload protection and current limiting to ensure device reliability.
8. Package: Available in a SOIC-8 package, which is compact and suitable for space-constrained designs.
9. Qualification: AEC-Q100 qualified, making it suitable for automotive applications.
These features make the LP2951-50QDRQ1 ideal for applications requiring stable and reliable voltage regulation under varying environmental conditions.
1. Output Voltage: Provides a fixed output voltage of 5.0V.
2. Input Voltage Range: Operates with an input voltage range of up to 30V.
3. Low Dropout Voltage: Typically around 380 mV at a 100 mA load.
4. Quiescent Current: Low quiescent current, typically 75 μA, enhancing efficiency in battery-powered applications.
5. Output Current: Can deliver up to 100 mA of output current.
6. Temperature Range: Qualified for automotive use with a wide operating temperature range from -40°C to 125°C.
7. Protection Features: Includes thermal overload protection and current limiting to ensure device reliability.
8. Package: Available in a SOIC-8 package, which is compact and suitable for space-constrained designs.
9. Qualification: AEC-Q100 qualified, making it suitable for automotive applications.
These features make the LP2951-50QDRQ1 ideal for applications requiring stable and reliable voltage regulation under varying environmental conditions.
Pinout
The LP2951-50QDRQ1 is a low-dropout voltage regulator manufactured by Texas Instruments. It typically comes in an 8-pin package, commonly a SOIC-8 or similar. Here's a brief overview of its pin functions:
1. VIN: Input voltage pin where the unregulated input voltage is applied.
2. GND: Ground pin, the common ground reference for the device.
3. VOUT: Output voltage pin where the regulated output voltage is provided.
4. FB: Feedback pin used to set the output voltage by connecting to a resistor divider (for adjustable versions).
5. SHUTDOWN: A pin used to turn off the regulator to save power when not needed.
6. ERROR: An error flag output pin that indicates if the output voltage is out of regulation.
7. COMP/NC: Compensation pin, often not connected or used for external frequency compensation.
8. BYPASS/NC: Bypass pin, used to reduce output noise by connecting a capacitor to ground, or sometimes not connected.
These pins facilitate the device's primary task of maintaining a stable 5V output from a higher input voltage, with features like shutdown and error indication for enhanced control and monitoring.
1. VIN: Input voltage pin where the unregulated input voltage is applied.
2. GND: Ground pin, the common ground reference for the device.
3. VOUT: Output voltage pin where the regulated output voltage is provided.
4. FB: Feedback pin used to set the output voltage by connecting to a resistor divider (for adjustable versions).
5. SHUTDOWN: A pin used to turn off the regulator to save power when not needed.
6. ERROR: An error flag output pin that indicates if the output voltage is out of regulation.
7. COMP/NC: Compensation pin, often not connected or used for external frequency compensation.
8. BYPASS/NC: Bypass pin, used to reduce output noise by connecting a capacitor to ground, or sometimes not connected.
These pins facilitate the device's primary task of maintaining a stable 5V output from a higher input voltage, with features like shutdown and error indication for enhanced control and monitoring.
Manufacturer
The LP2951-50QDRQ1 is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is a global semiconductor company based in Dallas, Texas. It designs and manufactures a wide range of semiconductor devices, with a focus on analog chips, embedded processors, and digital light processing technology. TI's products are used in various electronic systems, including those in automotive, industrial, personal electronics, and communications equipment. The company is known for its innovation and extensive portfolio of integrated circuits and semiconductors.
Application
The LP2951-50QDRQ1 is a low-dropout voltage regulator commonly used in automotive and industrial applications. It provides a stable 5V output, suitable for powering microcontrollers, sensors, and other electronic components in automotive systems. It is also used in battery-powered devices due to its low quiescent current and efficiency. Additionally, the component is often applied in communication equipment, embedded systems, and consumer electronics for voltage regulation and power management. The LP2951-50QDRQ1's features, such as thermal shutdown and current limiting, make it reliable for applications requiring robust performance under varying environmental conditions.
Package
The LP2951-50QDRQ1 is a low-dropout voltage regulator from Texas Instruments, packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package, identified by the suffix "QDR". It is automotive qualified, with a fixed 5V output and designed for precision regulation and efficiency in automotive and industrial applications.
