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LT3503 — DFN / uDFN package (representative)
DFN / uDFN
Representative of package type
Analog Devices

LT3503

Switching Regulator · DFN-14 · Analog
Part Status: Active
Data last refreshed Aug 8, 2026
Manufacturer
Analog Devices
Mfr Part #
LT3503
Series
LT3503
Category
Switching Regulator
Datasheet
View datasheet ↗
Availability & Pricing
Est. market range$3.50 – $7.50
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Product Attributes

Electrical & Parametric
Channels2
Output Current1.2A per channel
Switching Freq2.25MHz
Physical & Thermal
Package / CaseDFN-14
Mounting TypeSurface Mount
SeriesLT3503
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategorySwitching Regulator
TypeAnalog
Part StatusActive

Dual 1.2A, 2.25MHz step-down switching regulator

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Price History & Market Reference

Market Price Range

High$7.50
Low$3.50
Last$5.50
Price as of2026-08-08

ZDI Transaction

ZDI priceQuote on request

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

Part Activity

recent searches, RFQs & offers
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LT3503 searched via the web · Web User

Recent search and sourcing activity for LT3503.

Engineering FAQ

What are the key specifications of LT3503?
Channels: 2; Output Current: 1.2A per channel; Switching Freq: 2.25MHz.
What package is LT3503 supplied in?
LT3503 is supplied in the DFN-14 package, surface mount, rated -40°C ~ 85°C.
Can ZDI source LT3503 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

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