The LP2981AIM5-4.0 is a micropower, ultra low-dropout linear voltage regulator designed to provide a fixed output voltage of 4.0V with a maximum output current of 100 mA. It features a typical dropout voltage of 200 mV at 100 mA load and 7 mV at 1 mA load, making it suitable for battery-powered applications. The device has a low ground pin current of 600 ¬µA at full load and only 80 ¬µA at light load, with a quiescent current of less than 1 ¬µA in sleep mode. The LP2981AIM5-4.0 is available in compact SOT-23 and micro SMD packages, which minimize board space. It offers a precision output voltage accuracy of 0.75% and includes overtemperature and overcurrent protection. The operating temperature range is from -40¬8C to +125¬8C, making it versatile for various applications including cellular phones, laptops, and personal digital assistants.
Manufacturer: Texas Instruments
Win Source Part Number: 1056209-LP2981AIM5-4
Packaging: Reel - TR
Mounting: SMD (SMT)
Number of Regulators: 1
Output Type: Fixed
Control Features: Enable
Output Current: 100mA
Categories: Integrated Circuits
Status: Obsolete(EOL)
Temperature Range - Operating: -40°C to 125°C
Case / Package: SOT-23-5
Maximum Input Voltage: 16V
Nominal Output Voltage (Min/Fixed): 4V
Dropout Voltage-Max: 0.37V @ 100mA
Operating Supply Current: 95μA to 1.7mA
PSRR: 63dB (1kHz)
Protection Features: Over Current, Over Temperature, Short Circuit
Popularity: Medium
Fake Threat In the Open Market: 50 pct.
Supply and Demand Status: Sufficient
Application Field: Used in Portable Devices, Computers & Computer Peripherals, Consumer Electronics
IC REG LINEAR 4V 100MA SOT23-5 Product overview: LP2981AIM5-4.0 from National Semiconductor is a Voltage Regulator IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 4V, 100MA, SOT23. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, 4V, 100MA, SOT23, Voltage Regulator IC, Linear & Switching Voltage Regulators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 776-LP2981AIM5-4.0 can be used for catalog matching and distributor lookup.
Fixed Positive LDO Regulator, 4V, 0.375V Dropout, BIPolar, PDSO5
Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-23-5
Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-23-5
Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-23-5
IC REG LINEAR 4V 100MA SOT23-5
IC REG LINEAR 4V 100MA SOT23-5
| Win Source Electronics | ERSAELECTRONICS PTE. LTD. | Rochester Electronics | DigiKey | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | IC Linear Voltage Regulators | IC Linear Voltage Regulators | IC Voltage Regulators | IC Linear Voltage Regulators | IC Linear Voltage Regulators | IC Voltage Regulators | IC Linear Voltage Regulators |
| Product Number | 1056209-LP2981AIM5-4.0 | 776-LP2981AIM5-4.0 | LP2981AIM5-4.0 | LP2981AIM5-4.0TR-ND | LP2981AIM5-4.0 | LP2981AIM5-4.0 | LP2981AIM5-4.0 |
| Product Name | PMIC - PMIC - Voltage Regulators - Linear - LP2981AIM5-4.0 | 4V 100MA SOT23 Voltage Regulator IC | Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | Voltage Regulators - Linear | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear | |
| Regulator Type | Low Dropout | Standard | |||||
| Output Voltage Type | Fixed; Fixed | Fixed | Fixed | Fixed; Fixed | |||
| Package Type | SOT23; Other; SOT-23-5 | Other; Bulk | Other; TSOP5/6 | Other; SC-74A, SOT-753 | Other; SC-74A, SOT-753 | ||
| Life Cycle Stage | PhaseOut; Obsolete(EOL) | Removed; Obsolete | |||||
| Special Features | Input Overcurrent Protection; Enable | Input Overcurrent Protection | Enable |
