Networking & Gateway

Why Choose Fairchild Solutions

Fairchild has a broad range of signal and power management solutions for network communication end systems. Communication providers have been expanding their network coverage from urban cities into rural and remote areas that lack access to reliable services. Our products are used by end systems such as networks and gateways and the equipment that powers those end systems. Whether converting AC or DC power into precisely-controlled DC power, our products are used in uninterrupted power supply (UPS), data centers, central offices, cell towers, fiber optics gear and customer facilities for enterprise, mobile internet, and cloud-based applications.

Fairchild is a leading power discrete semiconductor supplier to network communication equipment manufacturers and designers of these systems. Fairchild's solutions enable higher power density and low power consumption demanded in communications systems.

Fairchild Product

IntelliMAX™ Load Switches

Fairchild's IntelliMAX™, a family of advanced load management switches, offers the unique combination of protections, control, and fault monitoring features.

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Fairchild Product

AccuPower™ Load Switch

AccuPower™ will handle a voltage range up to 36V while maintaining efficiency and delivering a drop-in integrated solution, requiring less space and less time to design in.

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Fairchild Product


Fairchild's DrMOS is a complete family of fully optimized, integrated FET plus Driver multi-chip power stage modules designed for multiple synchronous Buck converter applications.

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Fairchild Product

mWSaver® Technology

mWSaver Technology combines our most energy-efficient process and circuit technologies for power adapter design into this unique group of components.

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Fairchild Product

Flyback Converter

Fairchild offers a number of controllers that offer the optimum combination of standby power and operating efficiency for a range of popular power levels for flyback converters.

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Fairchild Product

FHR1200 - Improved Shunt Regulator

The FHR1200 is a high-efficiency regulator that outperforms the typical shunt regulator in applications where low operating power, wide temperature, and wide voltage range is important. The regulator also features better stability and faster response than many existing regulators.

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Fairchild Product

Motion SPM® Smart Power Modules

Motion SPM® modules integrate drive and protection circuitry into a single package. Simplify and accelerate your design as you optimize efficiency. These devices are sometimes referred to as Intelligent Power Modules (IPM) by the market.

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Application NoteDescription
AN-6067Design and Application of Primary-Side Regulation (PSR) PWM Controller
AN-4138Design Considerations for Battery Charger Using Green Mode Fairchild Power Switch (FPS™)
AN-4107Design of Power Factor Correction Using FAN7527
AN-4121Design of Power Factor Correction Circuit Using FAN7527B
AN-6075Compact Green-Mode Adapter Using FSQ500L for Low Cost
AN-4129Green Current Mode PWM Controller FAN7601
AN-6073FAN6751 Highly Integrated Green-Mode PWM Controller
AN-1025Maximum Power Enhancement Techniques for SuperSOT™-3 Power MOSFETs
AN-9005Driving and Layout Design for Fast Switching Super-Junction MOSFETs
AN-558Introduction to Power MOSFETs and their Applications
AN-7510A New PSPICE Subcircuit for the Power MOSFET Featuring Global Temperature Options
AN-9010MOSFET Basics
AN-8018FAN9612 400W 4-Layer Evaluation Board User Guide (FEB279) OBSOLETE! FEB279 Replaced by FEB388
AN-5054Low Noise Leadless Packages Advance Portable Designs
AN-9052Design Guide for Selection of Bootstrap Components
AN-7008FPF200X Evaluation Module
AN-4137Design Guidelines for Offline Flyback Converters using FPS™
AN-8033Design Guideline for Primary Side Regulated (PSR) Flyback Converter Using FAN103 and FSEZ13X7
AN-FEBFAN104WMXUser Guide for FEBFAN104WMX-T06U005A Evaluation Board
AN-42036PCB Grounding System and FAN2001/FAN2011 High Performance DC-DC Converters
AN-8022TinyCalc™ Users Guide
AN-600Understanding Latch-up in Advanced CMOS Logic
AN-400ALow-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
AN-6224Applying FAN6224 for Flyback and Forward Freewheeling Rectification
AN-6756Applying FAN6756 to Control a Flyback Power Supply with Ultra-Low Standby Power
AN-8102Recommendations to Avoid Short Pulse Width Issues in HVIC Gate Driver Applications
AN-1029Maximum Power Enhancement Techniques for SO-8 Power MOSFETs
AN-6086Design Consideration for Interleaved Boundary Conduction Mode PFC Using FAN9611 / FAN9612
AN-9068Gate Resistor Design Guidelines for SupreMOS®
AN-5232New Generation Super-Junction MOSFETs, SuperFET® II and SuperFET® II Easy Drive MOSFETs for High Efficiency and Lower Switching Noise
AN-1030Design with MOSFET Load Switch
AN-FEBFDMQ8203-13WUser Guide for FEBFDMQ8203_13 W GreenBridge™ Evaluation Kit for Power Over Ethernet 13 W Flyback DC-DC
AN-4154MOSFETs for 60 W High-Power PoE Applications
AN-FEBFDMQ8203-25WUser Guide for FEBFDMQ8203_25 W GreenBridge™ Evaluation Kit for Power Over Ethernet 25 W Flyback DC-DC
AN-7004Power Converter Topology and MOSFET Selection for 48-V Telecom Applications
AN-1028Maximum Power Enhancement Techniques for SOT-223 Power MOSFETs
AN-1026Maximum Power Enhancement Techniques for SuperSOT™-6 Power MOSFETs
AN-9760PCB Design Guidance for SPM®
AN-1031Considerations in Designing the Printed Circuit Boards of Embedded Switching Power Supplies
AN-7007Simplifying Portable Power Management and Protection Circuit Design Using the FPF200X Integrated Switch Product Family
AN-5064TCLow Icct Analog Switches for Ultra-Portable Designs (Traditional Chinese)
AN-9752Design Guidelines for New-Generation FPS™ FSB-Series
AN-4140Transformer Design Consideration for Offline Flyback Converters Using Fairchild Power Switch (FPS™)
AN-4141Troubleshooting and Design Tips for Fairchild Power Switch (FPS™) Flyback Applications
AN-4148Audible Noise Reduction Techniques for FPS™ Applications
AN-4159Green Mode Fairchild Buck Switch FSL336LR
AN-41761 kV SenseFET Integrated Power Switch
AN-5007An Introduction to Fairchild Switch Products
AN-996Using the Fairchild Switch as a 5V to 3V Translator
AN-5008FSTU - Undershoot Protected Fairchild Switch Family
AN-6018Fairchild USB Switch Advantage
AN-6019Fairchild Analog Switch Products ESD Test Methodology Overview
AN-6022Using the FSUSB30 to Comply with USB 2.0 Fault Condition Requirements
AN-6022TCUsing the FSUSB30/31 to Comply with USB 2.0 Fault Condition Requirements Traditional Chinese
AN-3001Optocoupler Input Drive Circuits
AN-9012Induction Heating System Topology Review
AN-88CMOS Linear Applications
AN-376Logic-System Design Techniques Reduce Switching-CMOS Power
AN-303HC-MOS Power Dissipation
AN-6846Applying SG6846 to Control a Flyback Power Supply with Surge Current Output
AN-5844Green Mode Fairchild Buck Switch FSL306LR
AN-393Transmission-Line Effects Influence High-Speed CMOS
AN-42007Safety, EMI and RFI Considerations
AN-680Dynamic Threshold for Advanced CMOS Logic
AN-1100Thermal Considerations of Surface Mount Packages
AN-77CMOS, The Ideal Logic Family
AN-7506Spicing-Up Spice II Software For Power MOSFET Modeling
AN-377DC Noise Immunity of CMOS Logic Gates
AN-7502Power MOSFET Switching Waveforms: A New Insight
AN-4145Electromagnetic Compatibility for Power Converters
AN-4147Design Guidelines for RCD Snubber of Flyback Converters
AN-5067PCB Land Pattern Design and Surface Mount Guidelines for MLP Packages
AN-389Follow PC-Board Design Guidelines For Lowest CMOS EMI Radiation
AN-9074C Family Characteristics
AN-4166Heat Sink Mounting Guide
AN-6741Flyback Power Supply Control with the SG6741
AN-7005Mounting Techniques for Bottomless™ SO-8
AN-6060Guidelines on Leadforming, Trimming Lead Length, and Heatsink Mounting
AN-9014Fairchild QFET® for Synchronous Rectification DC to DC Converters
AN-6932Applying SG6932 to Control a PFC and Forward/PWM Power Supply
AN-6902Applying SG6902 to Control a CCM PFC and Flyback/PWM Power Supply
AN-3005Design Fundamentals for Phototransistor Circuits