LP3871EMP-1.8/NOPBIn StockTexas Instruments
LP3871EMP-1.8/NOPB is a fixed 1.8V, 800mA low dropout linear voltage regulator with 0.35V max dropout and 2.5–7V input range in a compact SOT-223 package. From $0.90, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT223 (4-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LP3871EMP-1.8/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9000(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 1.8V output with ±1.5% accuracy for precise voltage regulation
- 800mA output current capability with only 0.35V max dropout voltage
- Wide input voltage range of 2.5V to 7V suits diverse supply rails
- Compact 5-pin SOT-223 package with excellent thermal dissipation
- RoHS compliant and REACH compliant for global market use
Applications
The LP3871EMP-1.8/NOPB is well-suited for portable electronics, IoT devices, and embedded systems requiring a stable 1.8V supply from 3.3V or 5V rails. Its low dropout voltage makes it ideal for battery-powered applications where supply headroom is limited. It is commonly used to power microcontrollers, FPGAs, memory modules, and wireless communication chips.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.35V |
| Dropout Voltage1-Nom | 0.24V |
| Input Voltage Absolute-Max | 7.5V |
| Input Voltage-Max | 7V |
| Input Voltage-Min | 2.5V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0018% |
| Load Regulation-Max | 0.0018% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.8A |
| Output Voltage1-Max | 1.854V |
| Output Voltage1-Min | 1.746V |
| Output Voltage1-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223-4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 3% |
| Package | SOT223 (4-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LP3871EMP-1.8/NOPB:
Regulator, 1.8V, 0.35V Dropout, CMOS, PDSO5
Frequently Asked Questions
What is the output voltage and accuracy of the LP3871EMP-1.8/NOPB?
The LP3871EMP-1.8/NOPB provides a fixed 1.8V output with ±1.5% accuracy, ensuring stable regulation across its full operating range. This precision makes it suitable for powering sensitive digital logic and memory interfaces.
What is the maximum output current and dropout voltage of this LDO regulator?
This device supports up to 800mA (0.8A) output current. The typical dropout voltage is 0.24V and the maximum is 0.35V at full load, allowing operation with input voltages as low as 2.135V when regulating to 1.8V.
What input voltage range does the LP3871EMP-1.8/NOPB support?
The LP3871EMP-1.8/NOPB accepts input voltages from 2.5V to 7V, with an absolute maximum of 7.5V. This wide range accommodates 3.3V and 5V supply rails commonly found in embedded and portable system designs.
What package does the LP3871EMP-1.8/NOPB use and is it RoHS compliant?
The device comes in a 5-pin SOT-223 package, which offers good thermal performance for surface-mount applications. It is Pb-free and fully REACH compliant, meeting modern environmental and regulatory requirements for global distribution.
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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.
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