LP2981A-50DBVR
LDO Voltage Regulators Sgl Output 100mA Fixed(5.0V) ShutdownLP2981A-50DBVR
LDO Voltage Regulators Sgl Output 100mA Fixed(5.0V) Shutdown
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Manufacturer Part # : LP2981A-50DBVR
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Package/Case: SOT23-5
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Brand: Texas Instruments
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Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
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Shipping & Payment
Shipping & Payment
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
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LP2981A-50DBVR DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
What sets the LP2981A-50DBVR apart is its low dropout voltage of 340mV at 100mA load current, ensuring minimal wasted power and optimal energy efficiency. Additionally, its low quiescent current of 75μA enables power conservation during standby periods or low load situations. These features make the LP2981A-50DBVR a standout choice for battery-powered devices or applications where energy efficiency is a top priority
Key Features
- Safe Operating Area: 3.15V to 36V
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Output options | Fixed Output | Iout (max) (A) | 0.1 |
Vin (max) (V) | 16 | Vin (min) (V) | 2.2 |
Vout (max) (V) | 5 | Vout (min) (V) | 2.8 |
Fixed output options (V) | 2.8, 2.9, 3, 3.3, 5 | Noise (µVrms) | 160 |
Iq (typ) (mA) | 0.065 | Thermal resistance θJA (°C/W) | 205 |
Rating | Catalog | Load capacitance (min) (µF) | 2.2 |
Regulated outputs (#) | 1 | Features | Enable |
Accuracy (%) | 2 | PSRR at 100 KHz (dB) | 41 |
Dropout voltage (Vdo) (typ) (mV) | 200 | Operating temperature range (°C) | -40 to 125 |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LP2981A-50DBVR?
The LP2981A-50DBVR is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It is designed to provide a stable and precise output voltage, making it suitable for powering sensitive components in various electronic devices.
How Does LP2981A-50DBVR Work?
The LP2981A-50DBVR operates by regulating an input voltage to a consistent output voltage with low dropout voltage. It uses a feedback loop to adjust the output voltage, maintaining stability under varying load conditions. The LDO regulator is designed to offer good line and load regulation, making it ideal for applications requiring a steady power supply.
How Many Pins does LP2981A-50DBVR have and What are the Functions of the Pinout Configuration?
The LP2981A-50DBVR comes in a 5-lead SOT-23 package. The pinout configuration includes:
- VOUT: Regulated output voltage.
- GND: Ground connection.
- BYP: Bypass pin for noise reduction.
- ENABLE: Enable pin for turning the regulator on/off.
- VIN: Input voltage pin.
What are the Pros and Cons of LP2981A-50DBVR?
Pros:
- Low Dropout Voltage: Maintains regulation even when the input voltage is close to the output voltage.
- Stable Output: Provides a stable output voltage even under varying load conditions.
- Low Noise: Includes a bypass pin for reducing output voltage noise.
- Small Package: The 5-lead SOT-23 package is compact and suitable for space-constrained designs.
- Enable Function: Allows for easy on/off control of the regulator.
Cons:
- Heat Dissipation: May require a heatsink for high-power applications to dissipate heat effectively.
- Limited Current Capacity: Suitable for low to moderate current applications due to its design limitations.
- External Components: Some applications may require additional external components for optimal performance.
Are There Any Equivalents/Alternatives to LP2981A-50DBVR for Recommendation?
- The LM2937 from Texas Instruments is a comparable LDO regulator with similar features.
- Alternatives to the LP2981A-50DBVR include the MCP1703 from Microchip Technology and the LT1763 from Analog Devices.
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