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Power Integrations

Power Integrations LinkSwitch-XT2 | Power Integrations

LinkSwitch-XT2 series from Power Integrations

Power Integrations LinkSwitch-XT2 Series Overview

Next-generation offline switcher with accurate CV/CC regulation using primary-side sensing.

The LinkSwitch-XT2 from Power Integrations is a Next-generation offline switcher with accurate CV/CC regulation using primary-side sensing. This series includes 7 variants, each tailored for specific application requirements while sharing a common architecture and design ecosystem.

Designed for offline power conversion, the LinkSwitch-XT2 integrates key power components to minimize external component count, reduce board space, and simplify the design process. these devices help engineers meet increasingly stringent energy-efficiency standards while reducing time to market.

Octatronics stocks LinkSwitch-XT2 variants in multiple package options. Request a quote for volume pricing, check real-time availability, or contact our engineering team for application support and alternative part recommendations.

Key Features

  • Highest IntegrationPrimary, secondary, and feedback circuits integrated on a single IC, reducing external component count by up to 50%.
  • Up to 10W Output PowerSupports output power up to Up to 10W with excellent load and line regulation.
  • Comprehensive Protection SuiteIntegrated over-voltage, over-current, over-temperature, and short-circuit protection eliminates external protection circuitry.
  • Ultra-Low No-Load PowerAdvanced burst-mode operation achieves <30mW no-load power consumption, meeting the strictest standby regulations.
  • Simplified Design ProcessReference designs, PI Expert design software, and application notes accelerate time-to-production.

Target Applications

  • USB chargers
  • Adapter power
  • IoT gateways
  • Appliance controls

Compare LinkSwitch-XT2 Variants

Side-by-side comparison of 2 product variants from Power Integrations

ParameterLNK3604D-TLLNK3604D
Package / Case8-SOIC (0.154", 3.90mm Width), 7 LeadsSO-8C
Max Operating Temp-150 °C
Min Operating Temp--40 °C
Operating Temperature-40°C ~ 150°C (TJ)-
Auto Restart and Overvoltage Response-Latch Off
Availability-预售
Breakdown Voltage-725 V
Control Features-Selectable Current Limit, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control
Control Scheme-Secondary-side
Current Pmpp150 uA-
Duty Cycle69%-
Duty Cycle Max66 %-
Fault ProtectionCurrent Limiting, Over Temperature, Over Voltage-
Input Supply Voltage Max265 VAC-
Input Supply Voltage Min85 VAC-
Internal Switch-Yes
Internal Switch SYes-
IsolationNon-Isolated-
Lifecycle StatusActive-
Max Input Voltage-265 V
Max Output Current257 mA-
Maximum Operating Temperature C+ 150-
Min Input Voltage-85 V
Minimum Operating Temperature C- 40-
Number of Outputs1 Output-
Output IsolationIsolated-
Output Power6.1 W-
Output Power Max Enclosed 230v-9.2 W
Output Power Max Enclosed Univ-6.1 W
Output Power Max Open Frame 230v-9.2 W
Output Power Max Open Frame Univ-6.1 W
Output Profile-CV
Output Voltage5 V-
Over Temperature Response-Hysteretic
Package8-SOICSO-8C
Power Watts7.3 W-
Product Family-LinkSwitch-XT2
Product Type-IC
Protection Features-Overtemperature, Input Overvoltage, Output Overvoltage, Output Short Circuit, Output Open Loop, Output Overload
Regulator TopologyFlyback-
Secondary Response-Auto-restart
SeriesLinkSwitch-XT2-
Supplier Device PackageSO-8C-
Switching Frequency132kHz-
TopologyFlybackFlyback
TradenameLinkSwitch-
Unit Weight0.019213 oz-
Voltage Breakdown725V-
Request QuoteRequest Quote
Selection Guide
📦Package
8-SOIC (0.154", 3.90mm Width), 7 Leads→LNK3604D-TL
SO-8C→LNK3604D
LinkSwitch-XT2 Series Applications
🚗
Automotive ElectronicsAEC-qualified semiconductors and interconnects for ADAS, EV powertrain, BMS, and vehicle networks.
🚗
Vehicle NetworkingCAN, LIN, and automotive Ethernet transceivers and PHYs.
🚗
Telematics & Connected VehicleCellular, GNSS, and gateway devices.
⚡
Energy & PowerPower conversion and protection components for solar, storage, charging, and industrial power.

Base Numbers

Base NumberDescriptionVariantsStatusAction
LNK3604DLNK3604D variants from Power Integrations2 MPNsActiveView Details

Technical Specifications

Compare key LinkSwitch-XT2 specifications across available variants. All parameters are typical values at 25 degC unless otherwise noted.

Power Specifications

Output Power
Up to 10W
Input Voltage Range
85–265 VAC (universal input)
Peak Efficiency
>90%
No-Load Power
<30 mW

Safety & Compliance

Safety Certifications
UL, IEC 62368-1
EMI Standard
EN 55032 Class B
Energy Star
CoC Tier 2 / DoE Level VI compliant

Frequently Asked Questions

Common technical questions about the LinkSwitch-XT2 series.

The LinkSwitch-XT2 is a Power Integrations Next-generation offline switcher with accurate CV/CC regulation using primary-side sensing. The series includes 7 variants optimized for different application requirements.
The LinkSwitch-XT2 series currently includes 7 variants. Each variant may differ in package type, operating specifications, and feature set. Browse the product table above to compare available options.
The LinkSwitch-XT2 series is used in USB chargers, Adapter power, IoT gateways, and Appliance controls. Contact our applications team for design-in support and recommendation.
Octatronics is an authorized distributor of Power Integrations products including the LinkSwitch-XT2 series. We provide competitive pricing, fast delivery, and full traceability for all components. Request a quote or contact us for availability and lead times.
Yes, Octatronics supports both prototype and production quantities for the LinkSwitch-XT2 series. Small-quantity orders are available for design evaluation, with volume pricing for production runs. Contact our sales team for custom pricing.