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Description
POWER INTEGRATIONS LNK305PN IC, OFF LINE SWITCHER, 175MA, 280MAThe LNK305PN is a LinkSwitch TN lowest component count, energy efficient off line Switcher, specifically designed to replace all linear and capacitor fed (cap dropper) non isolated power supplies in the under 360mA output current range at equal system cost while offering much higher performance and energy efficiency. LinkSwitch TN devices integrate a 700V power MOSFET, oscillator, simple on off control scheme, a high voltage switched current source,
The LNK305PN is a LinkSwitch-TN lowest component count, energy-efficient off-line Switcher, specifically designed to replace all linear and capacitor-fed (cap dropper) non-isolated power supplies in the under 360mA output current range at equal system cost while offering much higher performance and energy efficiency. LinkSwitch-TN devices integrate a 700V power MOSFET, oscillator, simple on/off control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC. The start-up and operating power are derived directly from the voltage on the DRAIN pin, eliminating the need for a bias supply and associated circuitry in buck or flyback converters. The fully integrated auto-restart circuit in the LNK304-306 safely limits output power during fault conditions such as short-circuit or open loop, reducing component count and system-level load protection cost.
- Lowest Component Count Buck Converter Solution
- Fully integrated Auto-restart for Short-circuit and open loop fault protection saves component costs
- 66kHz Operation with accurate current limit, allows low cost Off-the-shelf 1mH Inductor
- Tight Tolerances and Negligible Temperature Variation
- High Breakdown Voltage of 700V Provides Excellent Input Surge Withstand
- Frequency Jittering Dramatically Reduces EMI (~10dB)
- High Thermal Shutdown Temperature (+135�C Minimum)
- Much Higher Performance over Discrete Buck and Passive Solutions
- Supports Buck, Buck-boost and Flyback Topologies
- System Level Thermal Overload, Output Short-circuit and Open Control Loop Protection
- Excellent Line and Load Regulation Even with Typical Configuration
- High Bandwidth Provides Fast Turn-on with No Overshoot
- Current Limit Operation Rejects Line Ripple
- Universal Input Voltage Range (85 to 265VAC)
- Built-in Current Limit and Hysteretic Thermal Protection
- Higher Efficiency than Passive Solutions
- Higher Power Factor than Capacitor-fed Solutions
- Entirely Manufacturable in SMD
- EcoSmart� - Extremely Energy Efficient
- Consumes typically 50/80mW in self-powered buck topology at 115/230VAC input with no-load
Applications
Consumer Electronics, Clock & Timing, LED Lighting, Industrial, Automation & Process Control
Warnings
Maximum ratings specified may be applied, one at a time, without causing permanent damage to the product.
Product details
| Operating Temperature Min | -40�C |
| Input Voltage AC Max | 265V |
| Operating Temperature Max | 150�C |
| No. of Pins | 8Pins |
| Input Voltage AC Min | 85V |
| Product Range | LNK305 |
| Topology | Buck, Buck-Boost, Flyback |
| AC / DC Converter Case Style | DIP |
| Power Rating | - |
| Packaging | Cut Tape |
| MSL | MSL 1 - Unlimited |
Other details
| Brand | POWER INTEGRATIONS |
| Part Number | LNK305PN |
| Quantity | Each |
| Technical Data Sheet EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.8 ★★★★★
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Product Reviews
★★★★★ 5
Perfect fit for 2004 Honda Element, Fixed leak!!
Perfect fit for 2004 Honda Element Dx. Fixed my power steering leak and was super easy to install. Took 5-10mins at most. Would definitely buy again, 5/5 stars!!!
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Reviewed in the United States on December 26, 2025
★★★★★ 5
Easy to install
Perfect fit, good quality and value for the price
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Reviewed in the United States on October 17, 2025
★★★★★ 5
Nice filter
Fit my 2024 grand Cherokee and works great
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Reviewed in the United States on June 16, 2025
★★★★★ 5
Fits perfectly and works well
fit the 2023 Jeep Grand Cherokee, always a relief. Works well too, inside air is cleaner. Happy with it and will purchase again when it is time
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Reviewed in the United States on August 14, 2025
★★★★★ 5
Perfect fit.
The cabin filter is easy to install and fits perfect, but just so you know it is not OME.
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Reviewed in the United States on July 28, 2025