The LNK306PN is part of the LinkSwitch-TN family of offline switchers designed for AC-DC conversion in applications requiring output currents up to 225 mA in buck, buck-boost, and flyback topologies. It operates at a frequency of 66 kHz and features a high breakdown voltage of 700 V, which enhances input surge withstand capability. The device integrates a power MOSFET, oscillator, and control circuitry, allowing for a simplified design with reduced component count and cost. This converter includes built-in protections such as auto-restart for short-circuit and open-loop conditions, thermal shutdown, and cycle-by-cycle current limit, which contribute to system reliability and safety. It is optimized for energy efficiency, consuming only 50/80 mW in self-powered buck topology at 115/230 VAC input with no load, and meets various energy efficiency standards including California Energy Commission (CEC) and Energy Star. The LNK306PN is suitable for applications such as appliances, timers, LED drivers, and industrial controls, making it a versatile choice for engineers looking for a cost-effective and efficient power supply solution.
Manufacturer: Power Integrations
Win Source Part Number: 091764-LNK306PN
Packaging: Tube/Rail
Mounting: Through Hole
Output Isolation: Non-Isolated
Internal Switch(s): Yes
Voltage - Breakdown: 700V
Topology: Buck, Buck-Boost, Flyback
Duty Cycle: 69%
Frequency - Switching: 66kHz
Fault Protection: Current Limiting, Open Loop, Over Temperature, Short Circuit
Family Name: LNK306
Categories: Integrated Circuits
Status: Active
Case / Package: DIP-8B
Control Operating Temperature: -40°C to 150°C (TJ)
Alternative Parts (Cross-Reference): VIPER17LN; VIPER17HN; LNK306P;
Introduction Date: September 02, 2004
ECCN: EAR99
Estimated EOL Date: 2022
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 37 pct.
Supply and Demand Status: Sufficient
DIP-8 Power Management IC: 265VAC In, 12V Out, 360mA, Buck-Boost/Flyback Product overview: LNK306PN from Power Integrations is a Step-Down DC-DC Converter IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include Buck, Boost, 12V, 360mA, DIP. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, Buck, Boost, 12V, 360mA, Step-Down DC-DC Converter IC. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 748-LNK306PN can be used for catalog matching and distributor lookup.
700V 66kHz DIP-8 AC-DC Controllers & Regulators ROHS
Converter Offline Buck, Buck-Boost, Flyback Topology 66kHz 8-PDIP-B
IC OFFLINE SWITCH MULT TOP 8DIP
| Win Source Electronics | ERSAELECTRONICS PTE. LTD. | LCSC Electronics Technology (HK) Limited | Quarktwin Technology Ltd. | Lingto Electronic Limited | |
|---|---|---|---|---|---|
| Product Category | AC-DC Converter Chips | DC-DC Converter Chips | IC Power Supplies | AC-DC Converter Chips | AC-DC Converter Chips |
| Product Number | 091764-LNK306PN | 748-LNK306PN | LNK306PN | LNK306PN | LNK306PN |
| Product Name | PMIC - PMIC - AC DC Converters, Offline Switchers - LNK306PN | Buck Boost 12V 360mA Step-Down DC-DC Converter IC | Power Supply Chip >> AC-DC Controllers & Regulators | AC DC Converters, Offline Switches | PMIC - AC DC Converters, Offline Switchers |
| Package Type | DIP; Other; DIP-8B | Other; DIP | DIP | DIP; Other; 8-DIP (0.300\", 7.62mm), 7 Leads | |
| Operating Temperature | -40 to 150 C (-40 to 302 F) | -40 C (-40 F) | -40 to 150 C (-40 to 302 F) | -40 to 150 C (-40 to 302 F) | |
| Configuration / Function | Flyback | Flyback; Buck, Buck-Boost, Flyback |
