LNK304PN -  LinkSwitch-TN Family Lowest Component Count, Energy-Effi cient Off-Line Switcher IC

Product Highlights

Cost Effective Linear/Cap Dropper Replacement

• Lowest cost and component count buck converter solution

• Fully integrated auto-restart for short-circuit and open 

loop fault protection – saves external component costs

• LNK302 uses a simpli? ed controller without auto-restart 

for very low system cost

• 66 kHz operation with accurate current limit – allows low cost 

off-the-shelf 1 mH inductor for up to 120 mA output current

• Tight tolerances and negligible temperature variation

• High breakdown voltage of 700 V provides excellent 

input surge withstand

• Frequency jittering dramatically reduces EMI (~10 dB) 

 – minimizes EMI ? lter cost

• High thermal shutdown temperature (+135 °C minimum)

Much Higher Performance over Discrete Buck and 

Passive Solutions

• Supports buck, buck-boost and ? yback topologies

• System level thermal overload, output short-circuit and 

open control loop protection

• Excellent line and load regulation even with typical 

con? guration

• 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 ef? ciency than passive solutions

• Higher power factor than capacitor-fed solutions

• Entirely manufacturable in SMD

EcoSmart®

– Extremely Energy Ef? cient

• Consumes typically only 50/80 mW in self-powered buck 

topology at 115/230 VAC input with no load (opto feedback)

• Consumes typically only 7/12 mW in ? yback topology 

with external bias at 115/230 VAC input with no load

• Meets California Energy Commission (CEC), Energy 

Star, and EU requirements

Applications

• Appliances and timers

• LED drivers and industrial controls

Product Highlights

Cost Effective Linear/Cap Dropper Replacement

• Lowest cost and component count buck converter solution

• Fully integrated auto-restart for short-circuit and open 

loop fault protection – saves external component costs

• LNK302 uses a simpli? ed controller without auto-restart 

for very low system cost

• 66 kHz operation with accurate current limit – allows low cost 

off-the-shelf 1 mH inductor for up to 120 mA output current

• Tight tolerances and negligible temperature variation

• High breakdown voltage of 700 V provides excellent 

input surge withstand

• Frequency jittering dramatically reduces EMI (~10 dB) 

 – minimizes EMI ? lter cost

• High thermal shutdown temperature (+135 °C minimum)

Much Higher Performance over Discrete Buck and 

Passive Solutions

• Supports buck, buck-boost and ? yback topologies

• System level thermal overload, output short-circuit and 

open control loop protection

• Excellent line and load regulation even with typical 

con? guration

• 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 ef? ciency than passive solutions

• Higher power factor than capacitor-fed solutions

• Entirely manufacturable in SMD

EcoSmart®

– Extremely Energy Ef? cient

• Consumes typically only 50/80 mW in self-powered buck 

topology at 115/230 VAC input with no load (opto feedback)

• Consumes typically only 7/12 mW in ? yback topology 

with external bias at 115/230 VAC input with no load

• Meets California Energy Commission (CEC), Energy 

Star, and EU requirements

Applications

• Appliances and timers

• LED drivers and industrial controls

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MJD is a corporation which engaged in agency electronic components. MJD Through seventeen years unrimitting efforts,  aspire to provide our customers with world-leading products and service. Now already became a one of the most famous electronic components distributor in China.

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 2. Western Union 

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 4. MoneyGram

Shipping:

1. MJD needs about 3 BUSINESS DAY to handle the order after received payment. after receiving your payment. Otherwise, we will state it in the invoice in advance.

2. MJD can Ship via your shipping account (DHL / FEDEX / UPS / TNT or others) as your instruction. Or Ship via our shipping account (We have a very good relationship with DHL and FEDEX with very special freight).

3. Regarding the declared value on the package for customs clearance, we are pleased to follow

your wishes, just feel free to inform us when ordering.

4. Any import fees or charges are the buyer's responsibility.

REFUNDS & RETURN:

We offer a warranty on all items that we sold. Item will be tested before ship,it will be in good condition,if there are some problems with the item,feel free to contact us.Please Email us to notify a defective item. Unless otherwise specified, this item comes with 30 days warranty from the shipment date.

You must contact us before returning any product. All returns must be made within 30 days from this shipment date.Return must be in new condition(the SAME CONDITION as it was sent to you)

Because of wholesale price is different from sample price, our website can not state. Please send your required part number via email Sales@hkmjd.com or skype id mjdccm898 to us.  As well as welcome you call us : 0755-83957301  We will send offer for you;  Sometimes manufacturer's price is unstable, so we don't adjust price in time. if you feel price is a little high for you, just feel free to contact us for consultation. Thank you for your support ！