LP2981IM5-4.0
- Mfr.Part #
- LP2981IM5-4.0
- Manufacturer
- National Semiconductor
- Package / Case
- SC-74A, SOT-753
- Datasheet
- Download
- Description
- IC REG LINEAR FIXED LDO REG
- Stock
- 33,035
- In Stock :
- 33,035
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- Manufacturer :
- National Semiconductor
- Product Category :
- Voltage Regulators - Linear
- Pin Count :
- 5
- Voltage Dropout (Max) :
- 0.37V @ 100mA
- Output Configuration :
- Positive
- Terminal Finish :
- Matte Tin (Sn)
- Length :
- 2.92mm
- ECCN Code :
- EAR99
- Mount :
- Surface Mount
- Protection Features :
- Over Current, Over Temperature, Short Circuit
- Number of Outputs :
- 1
- Pbfree Code :
- yes
- PSRR :
- 63dB (1kHz)
- Control Features :
- Enable
- Terminal Pitch :
- 0.95mm
- Operating Temperature :
- -40°C~125°C
- Base Part Number :
- LP2981
- Output Voltage :
- 4V
- Output Type :
- FIXED
- Dropout Voltage1-Nom :
- 0.2V
- JESD-609 Code :
- e3
- Current - Supply (Max) :
- 1.7mA
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Number of Functions :
- 1
- Input Voltage (Min) :
- 5V
- Dropout Voltage :
- 200mV
- JESD-30 Code :
- R-PDSO-G5
- Qualification Status :
- Not Qualified
- Voltage Tolerance-Max :
- 3.5%
- Packaging :
- Tape and Reel (TR)
- Terminal Form :
- Gull wing
- Voltage - Input (Max) :
- 16V
- Mounting Type :
- Surface Mount
- Current - Quiescent (Iq) :
- 95μA
- Number of Regulators :
- 1
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Terminal Position :
- Dual
- Packing Method :
- Tape and Reel
- RoHS Status :
- ROHS3 Compliant
- Package / Case :
- SC-74A, SOT-753
- Number of Terminations :
- 5
- Output Voltage 1 :
- 4V
- Peak Reflow Temperature (Cel) :
- 260
- Min Current Limit :
- 150mA
- Current - Output :
- 100mA
- Datasheets
- LP2981IM5-4.0

Voltage Regulators - Linear National Semiconductor LP2981IM5-4.0 Overview
The LP2981IM5-4.0 from National Semiconductor represents a robust solution in linear voltage regulation, optimizing stability and efficiency in a wide range of applications. This fixed low-dropout (LDO) regulator is designed to deliver a continuous 4.0V output from a higher input voltage with minimal power loss, making it ideal for sensitive electronic devices. The compact SOT-23 package integrates smoothly into space-constrained designs, offering a reliable power management solution that complements advanced microcontroller environments. With its precise voltage regulation and low operational noise, the Voltage Regulators - Linear National Semiconductor LP2981IM5-4.0 enhances system reliability and performance, particularly in critical applications where power stability is paramount.
LP2981IM5-4.0 Features
This LDO voltage regulator boasts several key features that make it highly suitable for demanding applications. It provides a fixed output with high accuracy, ultra-low dropout characteristics for better performance under varying input conditions, and low quiescent current to enhance battery life in portable devices. Additionally, its thermal shutdown and current limit protections safeguard the device and connected components from potential damage due to excessive heat and overcurrent conditions.
LP2981IM5-4.0 Applications
- Portable Devices: Its low quiescent current and stable output make it ideal for extending battery life in portable electronics such as smartphones and tablets.
- Healthcare Equipment: Reliable and precise voltage regulation ensures safe and effective operation of medical devices where consistent performance is critical.
- Power Supplies: Used in linear power supply units to provide a stable and noise-free output, crucial for high-quality audio and precision instrumentation.
- Automotive Applications: Ensures robust performance in automotive electronics, providing stable power despite variations in battery voltage during different operating conditions.
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