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UC3842B AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

UC3842B product

UC3842B

AC DC Converters

PWM ControllerPower Management

The UC3842B is a high-performance, fixed-frequency current-mode PWM controller optimized for offline and DC-to-DC power supply designs.

Best for

  • Offline power supplies
  • DC-DC converters

Avoid if

  • Applications requiring very low quiescent current

Check before use

  • Thermal management of the SOP-8 package

Key specifications

UVLO (On)
16 V
Max Duty Cycle
100%
Max Frequency
500 kHz

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
1 (Unlimited)
ECCN
EAR99
HTSUS
8542.39.0001

Application

Power Management

Datasheet

3d689c0817cb5cf813cbb76da4fdee3a_2311091734_UMW-Youtai-Semiconductor-Co---Ltd--UC3842B_C347459.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for UC3842B: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is a current-mode PWM controller designed for driving power MOSFETs in switching power supplies.