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Request evaluation samplesLP3990MFX-1.2/NOPB is a PMIC - Voltage Regulators - Linear model from Texas Instruments, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Integrated Circuits (ICs) / PMIC - Voltage Regulators - Linear product path. Known package information currently points to SOT23 under the Texas Instruments brand listing. IC REG LINEAR 1.2V 150MA SOT23-5. TrustCompo combines the available model, brand, hierarchy, and specification details around LP3990MFX-1.2/NOPB so buyers can move faster from review to quotation.

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Series
-
Min Quantity
1
Category
Integrated Circuits (ICs)Sub Category
PMIC - Voltage Regulators - LinearDescription
IC REG LINEAR 1.2V 150MA SOT23-5
key Attributes
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Product overview
The LP3990MFX-1.2/NOPB is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 1.2V with a maximum output current of 1A. This device is particularly useful in applications where space is limited and efficiency is critical, such as in portable electronics, battery-powered devices, and other low-power applications.
Output Voltage: The LP3990MFX-1.2/NOPB has a fixed output voltage of 1.2V, making it suitable for powering low-voltage digital circuits and microcontrollers.
Low Dropout Voltage: The LDO features a low dropout voltage, typically around 300mV at full load, which allows it to maintain regulation even when the input voltage is only slightly above the output voltage. This is particularly beneficial in battery-operated devices where maximizing battery life is essential.
High Power Supply Rejection Ratio (PSRR): The device offers excellent PSRR, which helps to minimize the impact of fluctuations in the input voltage on the output voltage, ensuring a clean and stable power supply for sensitive components.
Thermal Protection: The LP3990MFX-1.2/NOPB includes thermal shutdown protection, which prevents the device from overheating and potentially damaging itself or the connected load.
Compact Package: It comes in a small, thermally enhanced 5-pin SOT-23 package, making it ideal for space-constrained applications.
Low Quiescent Current: The regulator features a low quiescent current, which is advantageous for battery-powered applications, as it helps to extend battery life by reducing power consumption when the device is idle.
Wide Input Voltage Range: The LP3990MFX-1.2/NOPB can operate with a wide input voltage range, typically from 2.5V to 5.5V, allowing it to be used in various applications with different power supply voltages.
Output Capacitor Compatibility: The device is compatible with a range of output capacitors, including ceramic capacitors, which are often preferred for their small size and low equivalent series resistance (ESR).
The LP3990MFX-1.2/NOPB is suitable for a variety of applications, including:
Overall, the LP3990MFX-1.2/NOPB from Texas Instruments is a versatile and efficient LDO voltage regulator that provides reliable performance in a compact package. Its combination of low dropout voltage, high PSRR, and low quiescent current makes it an excellent choice for modern electronic designs requiring stable and efficient power management.
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Product Attribute
Part Status
Active
Product Attribute
REACH Status
REACH Unaffected
Product Attribute
ECCN
EAR99
Product Attribute
Lead Free
Lead Free
Product Attribute
Mounting Type
Surface Mount
Product Attribute
Lifecycle Status
ACTIVE (Last Updated: 6 days ago)
Common questions
Quick answers for buyers reviewing LP3990MFX-1.2/NOPB, stock, documentation, and sourcing steps.
LP3990MFX-1.2/NOPB is a PMIC - Voltage Regulators - Linear component from Texas Instruments. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
LP3990MFX-1.2/NOPB is listed with package reference SOT23. The current product description is IC REG LINEAR 1.2V 150MA SOT23-5, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
This page currently shows 37740 units in stock and 29364 units available for LP3990MFX-1.2/NOPB. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for LP3990MFX-1.2/NOPB by Texas Instruments. The TrustCompo team can review price, availability, and documentation support.
A dedicated datasheet link is not currently listed for LP3990MFX-1.2/NOPB by Texas Instruments. Contact us with the part number and required parameters so the team can help confirm documentation during quotation.
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for LP3990MFX-1.2/NOPB before approving the order.
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