사양
| 속성 | 가치 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Not For New Designs |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 16V |
| Voltage-Output(Min/Fixed) | 5V |
| VoltageDropout(Max) | 0.37V @ 100mA |
| Current-Output | 100mA |
| Current-Quiescent(Iq) | 95 µA |
| Current-Supply(Max) | 1.7 mA |
| PSRR | 63dB (1kHz) |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Current, Over Temperature, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | SC-74A, SOT-753 |
개요
Description
The LP2981IM5-5.0 is a low-dropout (LDO) voltage regulator designed to provide a steady 5.0V output. Manufactured by Texas Instruments, it is part of the LP2981 series known for its high accuracy and low noise performance. The device operates with an input voltage range typically from 2.1V to 16V and can deliver an output current of up to 100mA, making it suitable for battery-powered and portable applications.
Key features of the LP2981IM5-5.0 include a low dropout voltage of typically 280mV at 100mA, ensuring efficient operation when the input voltage is close to the output voltage. It also offers excellent line and load regulation, a low quiescent current of approximately 30µA, and a shutdown mode that reduces the quiescent current to less than 1µA. The regulator is housed in a compact SOT-23-5 package, making it ideal for space-constrained designs. Additional features include current and thermal limiting, ensuring protection against overcurrent and overheating conditions.
Key features of the LP2981IM5-5.0 include a low dropout voltage of typically 280mV at 100mA, ensuring efficient operation when the input voltage is close to the output voltage. It also offers excellent line and load regulation, a low quiescent current of approximately 30µA, and a shutdown mode that reduces the quiescent current to less than 1µA. The regulator is housed in a compact SOT-23-5 package, making it ideal for space-constrained designs. Additional features include current and thermal limiting, ensuring protection against overcurrent and overheating conditions.
Equivalent
The LP2981IM5-5.0 is a low-dropout (LDO) voltage regulator from Texas Instruments. Equivalent products include the MIC5205-5.0 from Microchip Technology, the NCP551 from ON Semiconductor, and the LD2981 from STMicroelectronics. These alternatives offer similar voltage regulation capabilities and package types, though specific parameter variations should be checked to ensure compatibility with your application.
Features
The LP2981IM5-5.0 is a low-dropout (LDO) voltage regulator known for its efficiency and compact design. Key features include:
1. Output Voltage: It provides a fixed output voltage of 5.0V.
2. Low Dropout Voltage: The device operates with a very low dropout voltage, typically 280mV at full load, which enhances efficiency.
3. Current Output: It offers a maximum output current of 100mA.
4. Low Quiescent Current: The regulator has a low quiescent current of about 30µA, making it suitable for battery-powered applications.
5. Shutdown Mode: Features an active-low shutdown pin that reduces the current consumption to virtually zero during standby.
6. Thermal Protection: Built-in thermal overload protection ensures the regulator does not overheat, enhancing reliability.
7. Small Package: Available in a compact SOT-23-5 package, ideal for space-constrained applications.
8. Stability: Designed to be stable with low ESR ceramic output capacitors.
9. Precision: Offers high output voltage accuracy, typically within ±1.5%.
These features make the LP2981IM5-5.0 suitable for portable devices, consumer electronics, and other applications requiring efficient power regulation.
1. Output Voltage: It provides a fixed output voltage of 5.0V.
2. Low Dropout Voltage: The device operates with a very low dropout voltage, typically 280mV at full load, which enhances efficiency.
3. Current Output: It offers a maximum output current of 100mA.
4. Low Quiescent Current: The regulator has a low quiescent current of about 30µA, making it suitable for battery-powered applications.
5. Shutdown Mode: Features an active-low shutdown pin that reduces the current consumption to virtually zero during standby.
6. Thermal Protection: Built-in thermal overload protection ensures the regulator does not overheat, enhancing reliability.
7. Small Package: Available in a compact SOT-23-5 package, ideal for space-constrained applications.
8. Stability: Designed to be stable with low ESR ceramic output capacitors.
9. Precision: Offers high output voltage accuracy, typically within ±1.5%.
These features make the LP2981IM5-5.0 suitable for portable devices, consumer electronics, and other applications requiring efficient power regulation.
Pinout
The LP2981IM5-5.0 is a low-dropout (LDO) linear voltage regulator from Texas Instruments. It is specifically designed to provide a fixed output voltage of 5.0 volts. The device comes in a 5-pin SOT-23 package. Here is a brief description of its pin functions:
1. VIN: This pin is used for the input voltage supply. It is where the unregulated input voltage is applied.
2. GND: The ground pin, connected to the negative side of the input and output.
3. VOUT: This pin outputs the regulated 5.0 volts.
4. EN (Enable): This pin is used to enable or disable the regulator. A high signal enables the regulator, while a low signal disables it.
5. BYP (Bypass): The bypass pin is optional and can be used to connect an external capacitor to improve noise performance by reducing output voltage noise.
The LP2981IM5-5.0 is suitable for battery-powered applications due to its low quiescent current and power-saving features.
1. VIN: This pin is used for the input voltage supply. It is where the unregulated input voltage is applied.
2. GND: The ground pin, connected to the negative side of the input and output.
3. VOUT: This pin outputs the regulated 5.0 volts.
4. EN (Enable): This pin is used to enable or disable the regulator. A high signal enables the regulator, while a low signal disables it.
5. BYP (Bypass): The bypass pin is optional and can be used to connect an external capacitor to improve noise performance by reducing output voltage noise.
The LP2981IM5-5.0 is suitable for battery-powered applications due to its low quiescent current and power-saving features.
Manufacturer
The LP2981IM5-5.0 is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of electronic products and components, including integrated circuits and embedded processors. TI's products are used in various applications across industries such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company is known for its innovation and leadership in the semiconductor sector, providing solutions that enhance the performance and efficiency of electronic devices.
Application
The LP2981IM5-5.0 is a low-dropout (LDO) voltage regulator designed for applications requiring a stable 5.0V output. Key application areas include portable and battery-powered devices, such as smartphones, tablets, and wearables, where efficient power regulation is critical. It is also used in embedded systems, microcontrollers, and sensor modules to ensure reliable operation. Additionally, the LP2981IM5-5.0 is suitable for consumer electronics, communications equipment, and automotive electronics, where space-saving and low power consumption are essential. Its ability to provide a stable voltage with minimal dropout makes it ideal for extending battery life and ensuring consistent device performance.
Package
The LP2981IM5-5.0 is a low-dropout (LDO) linear voltage regulator by Texas Instruments. It comes in a SOT-23-5 package, which is a small-outline transistor package with five pins. This package is designed to fit compact spaces, making it suitable for applications requiring space efficiency.
