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Product attributes Property Value
Manufacturer Power Integrations
Product Series LinkSwitch™-XT2
Packaging Tube |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 69%
Frequency - Switching 132kHz
Power (Watts) 7.3 W
Fault Protection Current Limiting, Over Temperature, Over Voltage
Control Features -
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm), 7 Leads
Supplier Device Package 8-PDIP-C
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Power Integrations LNK3604P is an isolated flyback offline switcher from the LinkSwitch-XT2 series with an integrated switch and a 725V breakdown voltage rating. It delivers up to 7.3W at a 132kHz switching frequency with a 69% maximum duty cycle. Current limiting, over temperature, and over voltage protection are included. Supplied in an 8-DIP package rated for -40°C to 150°C junction temperature.

  • 725V breakdown rating supports offline flyback designs with margin.
  • Integrated switch reduces external component count for compact low-power supplies.
  • Current limiting, over temperature, and over voltage protection improve reliability.
  • 132kHz switching frequency and 69% max duty cycle support efficient low-power conversion.
  • -40°C to 150°C junction temperature range suits thermally demanding applications.

Low-Power Isolated Supplies

With 7.3W output and an isolated flyback topology, the LNK3604P suits low-power AC-DC bias and auxiliary supplies requiring galvanic isolation.

Compact 8-DIP Designs

The 8-DIP package with integrated switch enables compact isolated flyback converters with minimal external components.

High-Temperature Operation

A junction temperature range of -40°C to 150°C supports reliable operation in thermally demanding environments.

Protected Low-Power Conversion

Current limiting, over temperature, and over voltage protection help safeguard the converter under fault conditions.

LinkSwitch-XT2 Family Designs

Part of the LinkSwitch-XT2 series, it offers a 725V breakdown rating and 132kHz switching for low-power offline conversion.

Q: What topology does the LNK3604P use?
A: It is an isolated flyback offline switcher.
Q: What is the breakdown voltage?
A: The breakdown voltage (Vds rating) is 725V.
Q: How much power can it deliver?
A: It delivers up to 7.3W.
Q: What is the switching frequency?
A: It operates at 132kHz.
Q: What is the maximum duty cycle?
A: The maximum duty cycle is 69%.
Q: What protections are included?
A: Current limiting, over temperature, and over voltage protection.
Base Product Number : LNK3604P
132kHz 7.3W 725V Breakdown 8-DIP AC-DC Converter Flyback Converter Isolated LinkSwitch-XT2 Offline Switcher PMIC Power Integrations
Q: What topology does the LNK3604P use?
A: It is an isolated flyback offline switcher.
Q: What is the breakdown voltage?
A: The breakdown voltage (Vds rating) is 725V.
Q: How much power can it deliver?
A: It delivers up to 7.3W.
Q: What is the switching frequency?
A: It operates at 132kHz.
Q: What is the maximum duty cycle?
A: The maximum duty cycle is 69%.
Q: What protections are included?
A: Current limiting, over temperature, and over voltage protection.