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FM9919D AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

FM9919D product

FM9919D

MOSFETs - Single

Synchronous RectificationFlyback5V

The FM9919D is a specialized synchronous rectification IC for 5V flyback power supplies, integrating a low-resistance MOSFET to replace Schottky diodes.

Best for

  • 5V flyback power supplies
  • Chargers
  • Adapters

Avoid if

  • Non-isolated power supplies
  • Output voltages significantly different from 5V

Check before use

  • Thermal dissipation requirements
  • DCM/QR mode compatibility

Key specifications

RDS(on)
19 mΩ
BVDSS
40 V
Package
SOP-8

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power

Datasheet

b38f40b1ba4aaf32f8185d62a7300d2a_2201121530_Shenzhen-Fuman-Elec-FM9919D_C2931998.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for FM9919D: 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

It is a secondary-side synchronous rectification driver IC with an integrated MOSFET, designed to improve efficiency in isolated flyback power systems.