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UC3879DW — SOIC-W (18–28) package (representative)
SOIC-W (18–28)
Representative of package type
Texas Instruments

UC3879DW

PWM Controller · SOIC-20 · Analog
Part Status: Obsolete
Data last refreshed Jun 20, 2026
Manufacturer
Texas Instruments
Mfr Part #
UC3879DW
Series
UC3879
Category
PWM Controller
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Price$3.50
Last transacted2004-05-20
Market range$3.50
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Product Attributes

Electrical & Parametric
Supply Voltage9V ~ 20V
Output Current100mA
Switching Frequencyup to 600kHz
Physical & Thermal
Package / CaseSOIC-20
Mounting TypeSurface Mount
SeriesUC3879
Operating Temperature-55°C ~ 150°C
Classification & Lifecycle
CategoryPWM Controller
TypeAnalog
Part StatusObsolete

Phase-shifted full-bridge PWM controller for high-efficiency resonant conversion

Price History & Market Reference

Market Price Range

High$3.50
Low$3.50
Last$3.50
Price as of2004-05-20

ZDI Transaction

Last ZDI price$3.50
As of2004-05-20

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

Part Activity

recent searches, RFQs & offers
UC3879DW viewed on the web · Web User
UC3879DW viewed on the web · Web User
UC3879DW viewed on the web · Web User

Recent search and sourcing activity for UC3879DW.

Engineering FAQ

UC3879DW 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 UC3879DW?
Supply Voltage: 9V ~ 20V; Output Current: 100mA; Switching Frequency: up to 600kHz.
What package is UC3879DW supplied in?
UC3879DW is supplied in the SOIC-20 package, surface mount, rated -55°C ~ 150°C.
Can ZDI source UC3879DW 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

UC3879DW 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.

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