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LT1940EFE — TSSOP / SSOP / MSOP package (representative)
TSSOP / SSOP / MSOP
Representative of package type
Linear Technology Corp

LT1940EFE

Switching Regulator · TSSOP-20E · Analog
Part Status: Obsolete
Data last refreshed Jun 18, 2026
Manufacturer
Linear Technology Corp
Mfr Part #
LT1940EFE
Series
LT1940
Category
Switching Regulator
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Price$12.35
Last transacted2004-02-26
Market range$12.35
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Product Attributes

Electrical & Parametric
Input Voltage3.3V-25V
Output Current1.1A per channel
Physical & Thermal
Package / CaseTSSOP-20E
Mounting TypeSurface Mount
SeriesLT1940
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategorySwitching Regulator
TypeAnalog
Part StatusObsolete

Dual 1.1A, 1.1MHz step-down switching regulator

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Price History & Market Reference

Market Price Range

High$12.35
Low$12.35
Last$12.35
Price as of2004-02-26

ZDI Transaction

Last ZDI price$12.35
As of2004-02-26

Pricing reflects ZDI's transaction and market-reference data. Firm pricing confirmed per RFQ against current availability.

Part Activity

recent searches, RFQs & offers
LT1940EFE viewed on the web · Web User
LT1940EFE viewed on the web · Web User
LT1940EFE viewed on the web · Web User
LT1940EFE viewed on the web · Web User

Recent search and sourcing activity for LT1940EFE.

Engineering FAQ

LT1940EFE is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
What are the key specifications of LT1940EFE?
Input Voltage: 3.3V-25V; Output Current: 1.1A per channel.
What package is LT1940EFE supplied in?
LT1940EFE is supplied in the TSSOP-20E package, surface mount, rated -40°C ~ 85°C.
Can ZDI source LT1940EFE 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

LT1940EFE is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

Related Parts

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