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LM3940IS-3.3 — DPAK / D2PAK (TO-252/263) package (representative)
DPAK / D2PAK (TO-252/263)
Representative of package type
National Semiconductor Corp

LM3940IS-3.3

LDO Regulator · TO-263-3 · Analog
In stock at ZDI
Data last refreshed Jun 19, 2026
Manufacturer
National Semiconductor Corp
Mfr Part #
LM3940IS-3.3
Series
LM3940
Category
LDO Regulator
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Stock65 pcs
Date Code971A
PackagingTubed
Unit PriceRequest a Quote
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Live pricing on request · most quotes same business day

Specifications

Physical & Thermal
Package / CaseTO-263-3
Mounting TypeSurface Mount
SeriesLM3940
Classification & Lifecycle
CategoryLDO Regulator
TypeAnalog

1 A low-dropout regulator, 3.3 V output

Availability & Sourcing

1 source row · masked
SourceMfrQtyDate CodeConditionStatus
ZDI Stock National Semiconductor Corp 65 971A New In Stock RFQ

ZDI Stock — held in our warehouse · Market — recent offers, sourced on request · Live — fresh from the broker network. Supplier identity and cost are never shown.

Part Activity

recent searches, RFQs & offers
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LM3940IS-3.3 searched via the web · Web User
LM3940IS-3.3 searched via the web · Web User
LM3940IS-3.3 searched via the web · Web User
LM3940IS-3.3 searched via the web · Web User
LM3940IS-3.3 searched via the web · Web User

Live search & sourcing activity for LM3940IS-3.3 — real inquiries only.

Engineering FAQ

answers from this part's real data
What quantity and packaging is LM3940IS-3.3 in ZDI stock?
ZDI holds 65 pcs, packaged as Tubed, date code(s) 971A. Request a quote for confirmed quantity, lead time, and pricing.
What package is LM3940IS-3.3 supplied in?
LM3940IS-3.3 is supplied in the TO-263-3 package, surface mount.
Can ZDI source LM3940IS-3.3 beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
Source-country supplier analysis, rating & review
Incoming inspection, RoHS verification, bake, full lot traceability
ESD-controlled handling · authentic parts guaranteed

Related Parts

from National Semiconductor Corp

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