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XL3844 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

XL3844 product

XL3844

MOSFETs - Single

Current-mode PWMSOP-8Under-50% duty cycleOffline SMPSDC-DC controller

XL3844 is a current-mode PWM controller in SOP-8 for offline and DC-DC power supplies requiring a below-50% duty-cycle controller.

Best for

  • Offline switch-mode power supplies
  • DC-DC converters with current-mode control
  • Designs requiring a maximum duty cycle below 50%

Avoid if

  • Applications requiring duty cycle above 50%
  • Designs unable to provide sufficient VCC startup voltage
  • Applications requiring verified compliance or lifecycle documentation

Check before use

  • Validate RT and CT for the target switching frequency
  • Set the current-sense resistor for the required peak-current limit
  • Review compensation and slope-compensation requirements
  • Confirm sourcing and compliance status with the supplier

Key specifications

PWM control mode
Fixed-frequency current mode
Maximum duty cycle
48% typical
UVLO start threshold
16 V typical
Supply range
12 V to 28 V
Package
SOP-8

Compliance & Environment

RoHS
-
REACH
-
MSL
MSL 3
ECCN
-
HTSUS
-

Application

Offline power suppliesDC-DC convertersIndustrial power control

Datasheet

1d810f94d04b102f9ba185a6a006221a_XL3844.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for XL3844: 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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Alternative components

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

Design and risk insights

Questions & answers

XL3844 is a XINLUDA fixed-frequency current-mode PWM controller. It integrates a 5 V reference, error amplifier, oscillator, current-sense comparator, UVLO, PWM latch, and a totem-pole output for driving an N-channel MOSFET.