Images are for reference only
LP2981A-33DBVR
+BOMIC REG LINEAR 3.3V 100MA SOT23-5
-
ManufacturerTexas Instruments
-
Mfr. Part #LP2981A-33DBVR
-
Datasheet LP2981A-33DBVR DataSheet
-
Package SOT-23 (DBV)-5
-
In Stock2527
365 Days Quality Guarantee
7*24 hours service quarantee
90-day after-sales guarantee
Genuine Product Guarantee
Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 16V |
| Voltage-Output(Min/Fixed) | 3.3V |
| 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 |
Overview
Description
The LP2981A-33DBVR is a low-dropout (LDO) linear voltage regulator designed by Texas Instruments. It is specifically tailored to provide a stable 3.3V output voltage from a higher input voltage source, with a maximum output current of 100mA. This component operates with a low dropout voltage of typically 280mV at full load, making it highly efficient for battery-powered and portable applications.
Key features include a low quiescent current, which helps in extending battery life, and excellent line and load transient response. The LP2981A-33DBVR also has built-in overcurrent and thermal shutdown protection, ensuring robust performance under various operating conditions.
The device comes in a small SOT-23 package, making it suitable for space-constrained applications. It is utilized in applications such as smartphones, tablets, and other consumer electronics that require efficient voltage regulation from a higher voltage source to 3.3V.
Overall, the LP2981A-33DBVR is prized for its efficiency, reliability, and compact packaging, making it a versatile choice for power management solutions.
Key features include a low quiescent current, which helps in extending battery life, and excellent line and load transient response. The LP2981A-33DBVR also has built-in overcurrent and thermal shutdown protection, ensuring robust performance under various operating conditions.
The device comes in a small SOT-23 package, making it suitable for space-constrained applications. It is utilized in applications such as smartphones, tablets, and other consumer electronics that require efficient voltage regulation from a higher voltage source to 3.3V.
Overall, the LP2981A-33DBVR is prized for its efficiency, reliability, and compact packaging, making it a versatile choice for power management solutions.
Equivalent
The LP2981A-33DBVR is a low-dropout voltage regulator. Equivalent products include:
1. Microchip MCP1703A-3302E/MB: Similar voltage and current specifications.
2. ON Semiconductor NCP1117ST33T3G: Offers similar functions and characteristics.
3. STMicroelectronics LD1117S33TR: Another LDO with comparable parameters.
4. Texas Instruments TLV73333PDBVR: Offers low dropout and similar output voltage.
Check the specific datasheets for detailed comparisons to verify compatibility.
1. Microchip MCP1703A-3302E/MB: Similar voltage and current specifications.
2. ON Semiconductor NCP1117ST33T3G: Offers similar functions and characteristics.
3. STMicroelectronics LD1117S33TR: Another LDO with comparable parameters.
4. Texas Instruments TLV73333PDBVR: Offers low dropout and similar output voltage.
Check the specific datasheets for detailed comparisons to verify compatibility.
Features
The LP2981A-33DBVR is a low-dropout (LDO) voltage regulator with the following features:
1. Output Voltage: Provides a fixed output voltage of 3.3V.
2. Low Dropout Voltage: Typically around 280mV at a full load of 100mA.
3. Current Capability: Can supply up to 100mA of output current.
4. Input Voltage Range: Operates over an input voltage range from 2.1V to 16V.
5. Low Quiescent Current: Typically 30µA, which helps in power-sensitive applications.
6. Shutdown Mode: Offers a shutdown feature that reduces quiescent current to approximately 1µA.
7. Accuracy: High output voltage accuracy with a tolerance of ±1.5% over temperature.
8. Thermal Protection: Includes thermal shutdown to protect against overheating.
9. Current Limiting: Built-in current limit to protect against overcurrent conditions.
10. Package: Available in a compact SOT-23 package, ideal for space-constrained applications.
These features make it suitable for use in battery-powered and portable devices, as well as other applications requiring efficient voltage regulation.
1. Output Voltage: Provides a fixed output voltage of 3.3V.
2. Low Dropout Voltage: Typically around 280mV at a full load of 100mA.
3. Current Capability: Can supply up to 100mA of output current.
4. Input Voltage Range: Operates over an input voltage range from 2.1V to 16V.
5. Low Quiescent Current: Typically 30µA, which helps in power-sensitive applications.
6. Shutdown Mode: Offers a shutdown feature that reduces quiescent current to approximately 1µA.
7. Accuracy: High output voltage accuracy with a tolerance of ±1.5% over temperature.
8. Thermal Protection: Includes thermal shutdown to protect against overheating.
9. Current Limiting: Built-in current limit to protect against overcurrent conditions.
10. Package: Available in a compact SOT-23 package, ideal for space-constrained applications.
These features make it suitable for use in battery-powered and portable devices, as well as other applications requiring efficient voltage regulation.
Pinout
The LP2981A-33DBVR is a low-dropout (LDO) voltage regulator. It typically comes in a SOT-23-5 package, meaning it has 5 pins. The main function of the LP2981A-33DBVR is to provide a regulated 3.3V output from a higher input voltage, with a low dropout voltage and low quiescent current, making it ideal for battery-powered applications.
The typical pin functions for the SOT-23-5 package are as follows:
1. VIN: Input voltage pin where the unregulated voltage is applied.
2. GND: Ground pin, the reference point for the regulator.
3. VOUT: Output voltage pin providing the regulated 3.3V.
4. EN (Enable): Enable pin which can be used to turn the regulator on or off. It's active high, meaning the regulator is enabled when this pin is pulled high.
5. NC (No Connect): This pin is typically not connected internally but should not be connected to ground or any other voltage.
Always refer to the specific datasheet for exact details and pin configuration to ensure accurate implementation.
The typical pin functions for the SOT-23-5 package are as follows:
1. VIN: Input voltage pin where the unregulated voltage is applied.
2. GND: Ground pin, the reference point for the regulator.
3. VOUT: Output voltage pin providing the regulated 3.3V.
4. EN (Enable): Enable pin which can be used to turn the regulator on or off. It's active high, meaning the regulator is enabled when this pin is pulled high.
5. NC (No Connect): This pin is typically not connected internally but should not be connected to ground or any other voltage.
Always refer to the specific datasheet for exact details and pin configuration to ensure accurate implementation.
Manufacturer
The LP2981A-33DBVR is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits, microcontrollers, and processors. TI is known for its innovation in the electronics industry, serving various markets like automotive, industrial, personal electronics, and communications equipment. The company focuses on developing technologies that enhance performance in analog and embedded processing products.
Application
The LP2981A-33DBVR is a low-dropout (LDO) voltage regulator commonly used in applications requiring a stable power supply with minimal voltage drop and efficient power management. Key application areas include:
1. Battery-Powered Devices: Provides stable voltage for longer battery life in devices like smartphones, tablets, and wearables.
2. Portable Electronics: Ensures efficient power regulation in cameras, MP3 players, and other handheld gadgets.
3. Telecommunications: Supports stable power for RF modules and networking equipment.
4. Industrial Controls: Used in automation systems that require reliable power regulation.
5. Consumer Electronics: Suitable for devices like set-top boxes and gaming consoles needing precise voltage regulation.
These application areas leverage the LP2981A-33DBVR's efficiency, low noise, and small footprint.
1. Battery-Powered Devices: Provides stable voltage for longer battery life in devices like smartphones, tablets, and wearables.
2. Portable Electronics: Ensures efficient power regulation in cameras, MP3 players, and other handheld gadgets.
3. Telecommunications: Supports stable power for RF modules and networking equipment.
4. Industrial Controls: Used in automation systems that require reliable power regulation.
5. Consumer Electronics: Suitable for devices like set-top boxes and gaming consoles needing precise voltage regulation.
These application areas leverage the LP2981A-33DBVR's efficiency, low noise, and small footprint.
Package
The LP2981A-33DBVR is a low-dropout (LDO) linear voltage regulator from Texas Instruments. It is packaged in a SOT-23-5 package, which is a small outline, 5-pin surface-mount package suitable for compact electronic designs.
