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Replaces Linear, Resistive / Capacitive Droppers in Home Appliance and Industrial Applications

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Suggested alternative(s): 
Typical Buck Converter Application

Data Sheets

Product Details

Description:

  • Lowest cost and component count buck converter solution
  • Tight tolerances and negligible temperature variation
  • System level thermal overload, output short-circuit and open loop protection
  • Supports buck, buck-boost and flyback topologies
  • 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 VAC to 265 VAC)
  • Built-in current limit and hysteretic thermal protection
  • Higher efficiency than passive solutions
  • Higher power factor than capacitor-fed solutions
  • Enables a 100% SMD designed power supply

Applications:

  • Non-isolated buck or buck-boost converter solution for linear/passive dropper replacement
  • Major and small home appliances
  • Industrial controls
  • Utility meters
  • Constant current LED lighting
  • Timers

Applications

Power Table

Output Current (mA)
PRODUCT1 230 VAC ±15% 85-265 VAC
MDCM2 CCM3 MDCM2 CCM3
LNK302D
LNK302P/G
63 80 63 80
LNK304D
LNK304P/G
120 170 120 170
LNK305D
LNK305P/G
175 280 175 280
LNK306D
LNK306P/G
225 360 225 360

Notes:

  1. Packages: D: SO-8C, P: DIP-8, G: SMD-8.
  2. MDCM - Mostly Discontinuous Conduction Mode
  3. CCM - Continuous Conduction Mode

Product Documents

Design Examples

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