LNK305G

Description：IC OFFLINE SWITCH MULT TOP 8SMD
Series：LinkSwitch®-TN
Mfr：Power Integrations
Package：Bulk

SKU:0856ee832c5b Category: AC DC Converters, Offline Switchers Brand: Power Integrations

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Product introduction

LNK305G is listed in the AC DC Converters, Offline Switchers range at ChipApex. The manufacturer field lists Power Integrations. Its product description is IC OFFLINE SWITCH MULT TOP 8SMD. Review the specifications below when checking this part for your BOM.

AC DC Converters, Offline Switchers specifications for LNK305G

Description：IC OFFLINE SWITCH MULT TOP 8SMD
Series：LinkSwitch®-TN
Mfr：Power Integrations
Package：Bulk
Output Isolation：Non-Isolated
Internal Switch(s)：Yes
Voltage - Breakdown：700V
Topology：Buck, Buck-Boost, Flyback
Voltage - Start Up：-
Voltage - Supply (Vcc/Vdd)：-
Duty Cycle：69%
Frequency - Switching：66kHz
Fault Protection：Current Limiting, Open Loop, Over Temperature, Short Circuit
Control Features：-
Operating Temperature：-40°C ~ 150°C (TJ)
Package / Case：8-SMD (7 Leads), Gull Wing
Supplier Device Package：SMD-8B
Mounting Type：Surface Mount
Grade：-
Qualification：-
Power (Watts)：-

AC DC Converters, Offline Switchers datasheet and documents for LNK305G

LNK305G

AC DC Converters, Offline Switchers Overview

The LNK305G is a discontinued offline switcher IC from the LinkSwitch-TN family by Power Integrations. It integrates a 700V power MOSFET and controller for buck, buck-boost, and flyback topologies. Operating at 66kHz, it features auto-restart protection against short-circuit and open-loop faults. The device is housed in an SMD-8B package with a junction temperature range of -40°C to 150°C.

AC DC Converters, Offline Switchers Feature Summary

Integrates high-voltage power MOSFET and controller for minimal component count
Includes fully integrated auto-restart for fault protection
Operates at 66kHz switching frequency

AC DC Converters, Offline Switchers Applications

Cost-effective linear or capacitor dropper replacement
Low-cost buck converter solutions
Flyback power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify RoHS compliance status as the LNK305G is listed as non-compliant in some records. Confirm lead times and availability through authorized distributors, noting that direct stock may be limited due to discontinuation. Ensure the specific suffix matches design requirements.

AC DC Converters, Offline Switchers Selection Notes

Select this component only if legacy compatibility is required, as it is no longer recommended for new designs. Consider the LNK305GN-TL as a verified direct substitute. Evaluate total system cost including external components, as the IC aims to minimize bill of materials.

AC DC Converters, Offline Switchers Part Context

Part of the LinkSwitch-TN family designed for lowest component count and energy efficiency. These ICs replace complex discrete solutions in low-power offline applications. The family includes variants like LNK302, LNK304, and LNK306 with different current capabilities.

AC DC Converters, Offline Switchers Replacement Considerations

The LNK305GN-TL is a confirmed direct substitute available from Power Integrations. Verify pinout and electrical specifications match before substitution.