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UC3842D

ACTIVE
Texas Instruments

Regulator Output DC-DC Controller IC 14-SOIC

In full production. No end-of-life notice on file.

UC3842D is a Regulator Output DC-DC Controller IC 14-SOIC from Texas Instruments. 1 authorized distributor quotes it on TracedParts, from RM 4.89 at quantity 1, with 30,277 units in stock for immediate despatch. Figures come from the distributors' own APIs, pulled in the catalogue snapshot of 2026-09-25, and are indicative rather than a binding quote.

RoHS COMPLIANTREACH 14-SOIC (0.154", 3.90mm Width) SMD
BEST PRICE @1
RM 4.89
DigiKey · authorized
TOTAL STOCK
30,277
1 source
SHORTEST LEAD
stock
ships from warehouse
AUTHORIZED
1 / 1
tier 1 sources

Who has UC3842D in stock, and what does it cost?

1 authorized distributor · pulled from their APIs in the catalogue snapshot of 2026-09-25
QTY pcs
DISTRIBUTOR
STOCK
MOQ
PRICE BREAKS · MYR
LEAD
@250 PCS
TIER 1 - AUTHORIZED DISTRIBUTORfranchised - full warranty - paperwork QA will accept
AUTH
30,277
248
248+4.8914
stock
ex-warehouse
RM 4.8914
RM 1,222.85 total
Buy ↗
What 250 pcs actually costs landed in Malaysia, duty and SST included: RM 1,386.44 RM 5.5458 per unit, DDP · estimate Open estimator →

What are the specifications of UC3842D?

14 parameters▾
Device specification
Operating Temperature0°C ~ 70°C (TA)
Mounting TypeSurface Mount
Package / Case14-SOIC (0.154", 3.90mm Width)
Supplier Device Package14-SOIC
Ordering & compliance
ManufacturerTexas Instruments
CategoryDC DC Switching Controllers
Package14-SOIC (0.154", 3.90mm Width)
MountingSurface mount
LifecycleACTIVE
RoHSCompliant
Moisture levelNot applicable (through hole)
PackagingTape & reel
Country of origin
HS code

Where can I download the UC3842D datasheet?

link supplied by DigiKey▾
PDF
UC3842D datasheet
link supplied by DigiKey · Texas Instruments · English
Open datasheet ↗

This is the datasheet link the distributor returned with the part record. We pass it through as they gave it, and we have not opened it - there are more than 300,000 of these and we verify only the ones we curate by hand. If it does not resolve, that is the distributor’s record, not the part.

What does UC3842D cost landed in Malaysia?

Malaysia · DDP · HS ▾
Goods
Freight · express 2 d
Import duty · 0 % (ITA-exempt)
Sales & service tax · 6 %
Customs clearance
Landed total

Estimate only. The correct HS classification for your import is your responsibility - see terms of service.

Is there a CAD symbol and footprint for UC3842D?

4 downloads▾
SCHEMATIC SYMBOL · .libPCB FOOTPRINT · .kicad_mod 3D MODEL · .stepSPICE · .mod

What can I use instead of UC3842D?

3 in DC DC switching controllers▾
UC3844D
Fairchild Semiconductor
Boost, Buck, Buck-Boost, Flyback, Forward Regulator …
25,435
RM 4.89
TL2843P
Texas Instruments
Boost, Flyback, Forward Regulator Positive Output St…
25,856
RM 4.97
NCP81101MNTXG
onsemi
Boost, Buck Regulator Positive Output Step-Up, Step-…
25,856
RM 4.97

Nearest peers by price within the same category. Confirm the parameters before you substitute - these are not guaranteed drop-in replacements.

Which parts are similar to UC3842D?

8 parts▾
TL3843BDR-8LV5069JA-AHNCP81102MNTXGNCP81272TMNTXGLV5061V-TLM-HTPS53124RGERDAP024UC3842BD1R2

Common questions about UC3842D

7 questions▾
Is UC3842D in stock?
Yes. 30,277 units are in stock across 1 authorized distributor (DigiKey), as of the catalogue snapshot of 2026-09-25.
How much does UC3842D cost?
RM 4.8914 is the lowest unit price on this page, from DigiKey. Prices fall as quantity rises; the full price break ladder is in the quotes table. Figures come from the distributor API and are indicative, not a binding quote.
Who supplies UC3842D?
DigiKey. It is authorized, franchised distributor quoting through its own API. TracedParts carries no broker or open-market listings.
How old are these prices?
The catalogue is re-pulled from the distributors' APIs once a day, and the line under the Quotes heading says which pull the figures on this page came from. Prices and stock can move between pulls, so treat them as indicative and confirm on the distributor's site before you order.
Who quoted these prices?
Every row on the site comes from an authorized, franchised distributor through its own API: DigiKey, Mouser or element14. There are no broker or open-market listings on TracedParts. If a source ever changes, the row will say so.
Why do you show the source before the price?
Because who sold it decides what happens at incoming inspection, and a table sorted by price alone hides that. Rows are grouped by the distributor's status first and ordered by unit price inside the group.
Why are prices in ringgit?
Distributors quote in US dollars. TracedParts converts to MYR at a fixed reference rate that is printed on the page, not a live FX feed, so the ringgit figure is a sourcing estimate rather than the amount you will be billed.