Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| 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) | 0.45V @ 100mA |
| Current-Output | 100mA |
| Current-Quiescent(Iq) | 120 µA |
| Current-Supply(Max) | 12 mA |
| ProtectionFeatures | Over Current, Over Temperature |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Tổng quan
Description
The LP2951ACDR2G is a low-dropout voltage regulator from the LP2951 series, commonly used in battery-powered applications due to its efficient power management capabilities. It is designed to provide a regulated output voltage with a low input-to-output dropout voltage, making it suitable for applications where power efficiency is critical.
Key features include:
- Output Current: Up to 100 mA.
- Low Dropout Voltage: Approximately 50 mV at light loads and 380 mV at 100 mA.
- Adjustable Output: Can be set to a fixed output or adjusted using external resistors.
- Shutdown Capability: Features a shutdown mode to save power, reducing current consumption to a minimal level.
- Thermal and Short-Circuit Protection: Ensures reliable operation under varying conditions.
- Precision Output: Offers a high degree of accuracy in output voltage (typically ±0.5%).
The LP2951ACDR2G is often used in applications like portable electronics, instrumentation, and other devices requiring efficient power regulation. It comes in various package options to suit different design requirements.
Key features include:
- Output Current: Up to 100 mA.
- Low Dropout Voltage: Approximately 50 mV at light loads and 380 mV at 100 mA.
- Adjustable Output: Can be set to a fixed output or adjusted using external resistors.
- Shutdown Capability: Features a shutdown mode to save power, reducing current consumption to a minimal level.
- Thermal and Short-Circuit Protection: Ensures reliable operation under varying conditions.
- Precision Output: Offers a high degree of accuracy in output voltage (typically ±0.5%).
The LP2951ACDR2G is often used in applications like portable electronics, instrumentation, and other devices requiring efficient power regulation. It comes in various package options to suit different design requirements.
Equivalent
The LP2951ACDR2G is a low-dropout voltage regulator. Equivalent products include:
1. LM2951 series by Texas Instruments
2. MC2951 series by ON Semiconductor
3. MIC2951 series by Microchip Technology
4. NCP2951 series by ON Semiconductor
5. UA78M series by Texas Instruments (with similar specs)
These alternatives offer comparable functionality in terms of voltage regulation, output current, and dropout voltage. Always verify specific requirements before substitution.
1. LM2951 series by Texas Instruments
2. MC2951 series by ON Semiconductor
3. MIC2951 series by Microchip Technology
4. NCP2951 series by ON Semiconductor
5. UA78M series by Texas Instruments (with similar specs)
These alternatives offer comparable functionality in terms of voltage regulation, output current, and dropout voltage. Always verify specific requirements before substitution.
Features
The LP2951ACDR2G is a low-dropout voltage regulator designed for precision output voltage regulation. Key features include:
1. Output Voltage Options: It offers precise fixed output voltage options and can also be used in adjustable output configurations.
2. Low Dropout Voltage: The device is designed to operate with a low dropout voltage, enhancing efficiency, especially in battery-powered applications.
3. High Accuracy: It provides an accurate output voltage with minimal deviation, which is critical for sensitive applications.
4. Current Limiting: The LP2951ACDR2G includes current limiting to protect against overcurrent conditions.
5. Thermal Protection: It features thermal shutdown capabilities to prevent overheating, ensuring device reliability.
6. Low Quiescent Current: The regulator operates with a low quiescent current, making it ideal for low-power and battery-operated devices.
7. Temperature Range: It is designed to function effectively over a wide temperature range, suitable for various environmental conditions.
8. Package Options: Available in different package configurations, enhancing design flexibility.
These features make the LP2951ACDR2G suitable for a wide range of applications, including portable electronics, telecom systems, and industrial equipment.
1. Output Voltage Options: It offers precise fixed output voltage options and can also be used in adjustable output configurations.
2. Low Dropout Voltage: The device is designed to operate with a low dropout voltage, enhancing efficiency, especially in battery-powered applications.
3. High Accuracy: It provides an accurate output voltage with minimal deviation, which is critical for sensitive applications.
4. Current Limiting: The LP2951ACDR2G includes current limiting to protect against overcurrent conditions.
5. Thermal Protection: It features thermal shutdown capabilities to prevent overheating, ensuring device reliability.
6. Low Quiescent Current: The regulator operates with a low quiescent current, making it ideal for low-power and battery-operated devices.
7. Temperature Range: It is designed to function effectively over a wide temperature range, suitable for various environmental conditions.
8. Package Options: Available in different package configurations, enhancing design flexibility.
These features make the LP2951ACDR2G suitable for a wide range of applications, including portable electronics, telecom systems, and industrial equipment.
Pinout
The LP2951ACDR2G is a low-dropout voltage regulator with an 8-pin configuration. It is designed for applications requiring a regulated output voltage with low input-to-output voltage differential. The key functions of the pins are as follows:
1. VOUT: Regulated output voltage.
2. GND: Ground connection.
3. VIN: Input voltage supply.
4. SENSE: Connects to the load for improved regulation.
5. FEEDBACK (FB): Allows for adjustable output voltage.
6. SHUTDOWN (SHDN): Enables or disables the regulator function.
7. COMP (COMPENSATION): For frequency compensation; typically connected to an external capacitor.
8. ERROR (ERROR): Provides an error flag signal indicating output status.
The LP2951ACDR2G is valued for its precision and versatility in power management applications, allowing for adjustable output voltage and possessing features like short-circuit protection and thermal overload protection.
1. VOUT: Regulated output voltage.
2. GND: Ground connection.
3. VIN: Input voltage supply.
4. SENSE: Connects to the load for improved regulation.
5. FEEDBACK (FB): Allows for adjustable output voltage.
6. SHUTDOWN (SHDN): Enables or disables the regulator function.
7. COMP (COMPENSATION): For frequency compensation; typically connected to an external capacitor.
8. ERROR (ERROR): Provides an error flag signal indicating output status.
The LP2951ACDR2G is valued for its precision and versatility in power management applications, allowing for adjustable output voltage and possessing features like short-circuit protection and thermal overload protection.
Manufacturer
The LP2951ACDR2G is manufactured by ON Semiconductor, which is now known as onsemi. Onsemi is a leading semiconductor company that focuses on intelligent power and sensing technologies. The company provides a wide range of semiconductor solutions for various applications, including automotive, industrial, cloud power, and the Internet of Things (IoT). Onsemi is known for its energy-efficient innovations, helping customers reduce energy consumption and increase performance across a broad array of devices and systems.
Application
The LP2951ACDR2G is a low-dropout voltage regulator used in various applications requiring stable voltage supply and efficient power management. Its application areas include:
1. Battery-powered devices: Provides regulated output for portable gadgets.
2. Microcontroller power supply: Ensures stable voltage for microcontrollers in embedded systems.
3. Telecommunications: Used in modems and networking equipment for reliable power.
4. Automotive: Powers sensors and control units with precision.
5. Industrial control systems: Offers stable voltage for automation equipment.
6. Consumer electronics: Supports devices like cameras and audio equipment.
7. Medical devices: Ensures consistent power for diagnostic tools and equipment.
These applications benefit from its low dropout voltage, low quiescent current, and precision output voltage.
1. Battery-powered devices: Provides regulated output for portable gadgets.
2. Microcontroller power supply: Ensures stable voltage for microcontrollers in embedded systems.
3. Telecommunications: Used in modems and networking equipment for reliable power.
4. Automotive: Powers sensors and control units with precision.
5. Industrial control systems: Offers stable voltage for automation equipment.
6. Consumer electronics: Supports devices like cameras and audio equipment.
7. Medical devices: Ensures consistent power for diagnostic tools and equipment.
These applications benefit from its low dropout voltage, low quiescent current, and precision output voltage.
Package
The LP2951ACDR2G is a low dropout voltage regulator and is typically provided in a SOIC-8 (Small Outline Integrated Circuit) package type. This package is designed for surface mounting on PCBs, offering compactness and reliability for electronic applications.
