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UC3843AN AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

UC3843AN product

UC3843AN

PMIC - Voltage Regulators - DC DC Switching Controllers

PWM ControllerCurrent ModeSwitching Regulator

The UC3843AN is a current-mode PWM controller optimized for high-efficiency switching power supplies, featuring a 500kHz max frequency and 1A output drive.

Best for

  • Offline and DC-DC switching power supplies
  • Applications requiring high-current MOSFET gate driving

Avoid if

  • Applications requiring extremely low quiescent current during operation

Check before use

  • Ensure the Vcc supply voltage remains within the 30V absolute maximum rating.

Key specifications

Max Frequency
500 kHz
Output Current
1 A
Startup Current
70 µA
Max Duty Cycle
96 %

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power SuppliesIndustrial Control

Datasheet

d1daf3665a535eef4b80ffa79edd0680_uc3842a-d.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for UC3843AN: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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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
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Where to Buy

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Alternative components

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

Design and risk insights

Questions & answers

The UC3843AN is a fixed-frequency, current-mode PWM controller IC designed for DC-DC converters and off-line switching power supplies.