LP2981AIM5-2.5/NOPBIn StockTexas Instruments
LP2981AIM5-2.5/NOPB is a micropower 100 mA ultra low-dropout LDO regulator with fixed 2.5V output, 0.2V typical dropout, 3.5–16V input range, ideal for battery-powered and noise-sensitive applications. From $0.75 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LP2981AIM5-2.5/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7465(MOQ 200)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 100 mA output current with only 0.2V typical dropout voltage for high efficiency
- Fixed 2.5V output in compact SOT-23 5-pin package for space-constrained designs
- Ultra-low quiescent current for extended battery life in portable applications
- Wide input voltage range of 3.5V to 16V for versatile power supply compatibility
- RoHS-compliant (Pb-free) with stable operation across industrial temperature range
Applications
The LP2981AIM5-2.5/NOPB is well suited for battery-powered portable devices such as handheld instruments, IoT sensors, and wearable electronics where low quiescent current and minimal dropout are critical. Its fixed 2.5V output makes it ideal for powering microcontrollers, ADCs, and reference circuits in industrial control systems. The compact SOT-23 footprint also fits tight PCB layouts in consumer electronics and communication modules.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.375V |
| Dropout Voltage1-Nom | 0.2V |
| Input Voltage Absolute-Max | 16V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 3.5V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.01% |
| Load Regulation-Max | 0.0012375% |
| 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 | 2.5625V |
| Output Voltage1-Min | 2.4375V |
| Output Voltage1-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN 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 | Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2.5% |
| ## LP2981AIM5-2.5/NOPB Alternates Showing results | Image |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LP2981AIM5-2.5/NOPB:
suggested
Frequently Asked Questions
What is the output voltage and dropout voltage of the LP2981AIM5-2.5/NOPB?
The LP2981AIM5-2.5/NOPB provides a fixed 2.5V output with a typical dropout voltage of only 0.2V and a maximum of 0.375V at full load, making it highly efficient for low-voltage applications.
What input voltage range does the LP2981AIM5-2.5/NOPB support?
The device operates with an input voltage ranging from 3.5V to a maximum of 16V, allowing it to work with a variety of power supply configurations including single-cell Li-Ion and multi-cell battery packs.
What applications is the LP2981AIM5-2.5/NOPB best suited for?
It is ideal for battery-powered portable equipment, IoT nodes, wearables, and noise-sensitive analog circuits. Its micropower quiescent current and 100 mA output capacity make it a strong choice wherever long battery life and compact size are priorities.
Is the LP2981AIM5-2.5/NOPB RoHS compliant and what package does it come in?
Yes, the /NOPB suffix indicates the device is lead-free and RoHS compliant. It is housed in a 5-pin SOT-23 surface-mount package, suitable for automated PCB assembly and space-constrained board designs.
Related Guides
Ultra Low Power Microcontroller Comparison 2026: STM32L4 vs MSP430 vs MSP432 vs CC2640
Engineer-grade 2026 comparison of ultra-low-power MCUs — STM32L476, MSP430A139, MSP432P401R, CC2640F128 across standby current, active current, and battery life.
May 5, 2026
BOM Cost Reduction: 7 Strategies for Electronics Manufacturers in 2026
Practical 2026 BOM optimization playbook — 7 proven strategies, ranked by payback time and risk. With realistic per-unit savings and verification steps.
May 5, 2026
STM32F072C8T6 Pin-Compatible Alternatives 2026: Cheaper Drop-In Options Compared
Engineer-grade compatibility analysis for STM32F072C8T6 alternatives in 2026 — pin compatibility, firmware portability, cost and lead time for each option.
May 5, 2026
Top Microcontrollers for IoT 2026: ESP32 vs Arduino vs STM32 vs RPi Pico
The five IoT MCU platforms compared on 2026 pricing, lead time, and use case — ESP32-S3, Arduino, STM32F0, RP2040, TI CC2640/CC1352P.
May 5, 2026
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 |
|---|---|---|
| 200+ | $1.0115 | $202.30 |
| 260+ | $0.9778 | $254.23 |
| 345+ | $0.8766 | $302.43 |
| 1000+ | $0.8632 | $863.20 |
| 5000+ | $0.7538 | $3768.95 |
| 7000+ | $0.7465 | $5225.78 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”