Texas Instruments · linear voltage regulator

LP3990

Texas Instruments linear voltage regulator

Part-number family from National Semiconductor (now Texas Instruments, 2011). Older stock may carry National Semiconductor markings.

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LP3990 is a linear voltage regulator product family from Texas Instruments; it is supplied under several orderable part numbers that differ in package, temperature grade and packing. It is listed in our Linear & LDO Regulators catalog (Power Management).

PartnerSemi sources the LP3990 for production, repair and maintenance buyers worldwide. Send the quantity you need and, optionally, a target price; we reply with price, lead time and available date codes, usually within one business day.

Specifications

Manufacturer part numberLP3990
ManufacturerTexas Instruments
Heritage brand (part family)National Semiconductor
Product typelinear voltage regulator
CategoryLinear & LDO Regulators
Part number typeBase / family part number

Specifications are indicative and taken from public catalog data; always verify against the manufacturer's datasheet.

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LP3985IM5X-3.3/NOPB Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-23-5 150mA3.3V
LP3986 linear voltage regulator
LP3986TL-2818 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators DSBGA-8(1.3x2)
LP3990MF-3.3/NOPB Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-23-5 150mA3.3V
LP3990MFX-1.2/NOPB Voltage Regulators - Linear, Low Drop Out (LDO) Regulators SOT-23-5 150mA1.2V
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Similar part numbers from other manufacturers

Similar numbering only — not a confirmed equivalent. Ask us to check compatibility.

Part numberManufacturerTypePackageKey specs
LP3990-12QVF LOWPOWER Voltage Regulators - Linear, Low Drop Out (LDO) Regulators X2-SON-4-EP(1x1) 300mA1.2V
LP3990-18QVF LOWPOWER Voltage Regulators - Linear, Low Drop Out (LDO) Regulators X2-SON-4-EP(1x1) 300mA1.8V
LP3990-30QVF LOWPOWER Voltage Regulators - Linear, Low Drop Out (LDO) Regulators X2-SON-4-EP(1x1) 300mA3V
LP3990A-18QVF LOWPOWER Voltage Regulators - Linear, Low Drop Out (LDO) Regulators X2SON-4(1x1) 300mA1.8V
LP3990A-28QVF LOWPOWER Voltage Regulators - Linear, Low Drop Out (LDO) Regulators X2SON-4(1x1) 300mA2.8V
LP3990A-33QVF LOWPOWER Voltage Regulators - Linear, Low Drop Out (LDO) Regulators X2SON-4(1x1) 300mA3.3V

Frequently asked questions

What is the LP3990?

LP3990 is a linear voltage regulator product family from Texas Instruments; it is supplied under several orderable part numbers that differ in package, temperature grade and packing. It is listed in our Linear & LDO Regulators catalog (Power Management).

Which part numbers are similar to the LP3990?

Similar part numbers in our catalog include LP3990-12QVF (LOWPOWER), LP3990-18QVF (LOWPOWER), LP3990-30QVF (LOWPOWER), LP3990A-18QVF (LOWPOWER), LP3990A-28QVF (LOWPOWER) and LP3990A-33QVF (LOWPOWER). Similar numbering does not guarantee compatibility; check the datasheets or ask us to confirm.

How can I buy the LP3990?

Request a quote from PartnerSemi at https://www.partnersemi.com/rfq/?mpn=LP3990&brand=Texas%20Instruments or email info@partnersemi.com with the part number and quantity. Price, availability and lead time are confirmed per request; we ship worldwide from the Netherlands.