For BusinessPricing
Request a demo

UC3842N AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

UC3842N product

UC3842N

DC DC Switching Controllers

PWM ControllerCurrent ModePower Management

The UC3842N is a standard current-mode PWM controller for power supply designs, featuring a 500kHz switching frequency and low startup current.

Best for

  • Offline power supplies
  • DC-DC converters

Avoid if

  • Applications requiring very low power consumption during standby

Check before use

  • Timing component values for desired frequency

Key specifications

Max Frequency
500 kHz
Startup Current
<0.5 mA
Max Duty Cycle
96%

Compliance & Environment

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

Application

Power Supplies

Datasheet

Fairchild-Semiconductor-company-11.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for UC3842N: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
Get Files
PCB Footprint
Land pattern for PCB layout
Get Files
3D Model
STEP file for mechanical design
Get Files
KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
Generate library

Login required · CAD models billed separately as an add-on

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 fixed-frequency, current-mode PWM controller designed for offline and DC-DC power supply applications.