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LM3668SD-4550/NOPB — DFN / uDFN package (representative)
DFN / uDFN
Representative of package type
Texas Instruments

LM3668SD-4550/NOPB

Buck-Boost Converter · WSON-12 · Power Management
Data last refreshed Jul 28, 2026
Manufacturer
Texas Instruments
Mfr Part #
LM3668SD-4550/NOPB
Series
LM3668
Category
Buck-Boost Converter
Datasheet
View datasheet ↗
Availability & Pricing
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Product Attributes

Electrical & Parametric
Input Voltage2.5 V to 5.5 V
Output Current1 A
Output Voltage4.5 V / 5.0 V selectable
Physical & Thermal
Package / CaseWSON-12
Mounting TypeSurface Mount
SeriesLM3668
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryBuck-Boost Converter
TypePower Management

1 A buck-boost DC/DC converter, 2.5-5.5 V in, selectable 4.5/5.0 V out

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Part Activity

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Engineering FAQ

What are the key specifications of LM3668SD-4550/NOPB?
Input Voltage: 2.5 V to 5.5 V; Output Current: 1 A; Output Voltage: 4.5 V / 5.0 V selectable.
What package is LM3668SD-4550/NOPB supplied in?
LM3668SD-4550/NOPB is supplied in the WSON-12 package, surface mount, rated -40°C ~ 85°C.
Can ZDI source LM3668SD-4550/NOPB 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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