LP2981A-33DBVT Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments LP2981A-33DBVT is a 100mA fixed 3.3V LDO voltage regulator with ±1% accuracy, 2.2V to 16V input range, and ultra-low 200mV dropout voltage in a compact 5-pin SOT-23 package. From $0.23 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- LP2981A-33DBVT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2316(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LP2981A-33DBVT?
- Fixed 3.3V output with ±1% accuracy for precision regulation
- Ultra-low 100mA output current with only 200mV typical dropout voltage
- Wide 2.2V to 16V input voltage range for flexible power supply design
- Compact 5-pin SOT-23 package ideal for space-constrained applications
- Low quiescent current for high efficiency in battery-powered designs
What is LP2981A-33DBVT used for?
The LP2981A-33DBVT is widely used in portable consumer electronics and battery-powered devices where efficient 3.3V regulation is essential. Its compact SOT-23 footprint and low dropout voltage make it ideal for microcontroller power supplies, IoT modules, and handheld instruments. It is also commonly deployed in industrial sensor nodes and wireless communication modules requiring stable, low-noise 3.3V rails.
What are the specifications of LP2981A-33DBVT?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.375V |
| Dropout Voltage1-Nom | 0.2V |
| Input Voltage Absolute-Max | 16V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 2.2V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.0124% |
| Load Regulation-Max | 0.0165% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.1A |
| Output Voltage1-Max | 3.3825V |
| Output Voltage1-Min | 3.2175V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2.5% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LP2981A-33DBVT datasheet?
LP2981A-33DBVT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LP2981A-33DBVT?
Compatible alternatives and drop-in replacements for LP2981A-33DBVT:
Fixed Positive LDO Regulator, 3.3V, 0.375V Dropout, BIPolar, PDSO5
Frequently Asked Questions
What is the output voltage and accuracy of the LP2981A-33DBVT?
The LP2981A-33DBVT provides a fixed 3.3V output with ±1% accuracy, ensuring stable and precise voltage regulation for sensitive digital and analog circuits.
What is the maximum input voltage and dropout voltage for the LP2981A-33DBVT?
The LP2981A-33DBVT accepts input voltages from 2.2V up to 16V absolute maximum. The typical dropout voltage is 200mV and the maximum is 375mV at full 100mA load current.
What applications is the LP2981A-33DBVT suitable for?
It is suitable for portable electronics, IoT devices, microcontroller power rails, wireless modules, and industrial sensors where a compact, efficient 3.3V LDO regulator with low dropout and high accuracy is required.
What package does the LP2981A-33DBVT come in and how does it help with PCB design?
The LP2981A-33DBVT comes in a 5-pin SOT-23 package (JESD-30 R-PDSO-G5), which is a very compact surface-mount package that minimizes board space and simplifies PCB layout in space-constrained designs.
Are there pin-compatible or functional alternatives to the LP2981A-33DBVT?
Functional alternatives include other 100mA fixed 3.3V LDO regulators in SOT-23 packages such as the MIC5205-3.3YM5 and XC6206P332MR. Always verify pinout, dropout voltage, and input voltage range before substituting.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $0.6610 | $6.61 |
| 25+ | $0.5956 | $14.89 |
| 100+ | $0.5240 | $52.40 |
| 800+ | $0.2505 | $200.40 |
| 1040+ | $0.2411 | $250.74 |
| 1300+ | $0.2316 | $301.08 |
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