LNK501

Application

• Linear transformer replacement in all 3 W applications
• Chargers for cell phones, cordless phones, PDAs, digital cameras, MP3/portable audio devices, shavers, etc.
• Home appliances, white goods and consumer electronics
• TV standby and other auxilliary supplies


Pinout




Specifications

DRAIN Voltage ........................................ -0.3 V to 700 V	Notes:
DRAIN Peak Current .............................................400 mA	1. All voltages referenced to SOURCE, TA = 25 °C.
CONTROL Voltage ..................................... - 0.3 V to 9 V	2. Normally limited by internal circuitry.
CONTROL Current (not to exceed 9 V) ................100 mA	3. 1/16" from case for 5 seconds.
Storage Temperature ................................ -65 °C to 150 °C	4. Maximum ratings specified may be applied, one at a time, without causing permanent damage to the product. Exposure to Absolute Maximum Rating conditions for extended periods of time may affect product reliability.
Operating Junction Temperature(2) ........... -40 °C to 150 °C
Lead Temperature(3) ................................................ 260 °C

Description

LinkSwitchis LNK501 specifically designed to replace all linear transformer/ RCC chargers and adapters in the 3 W universal range at equa or lower system cost with much higher performance and energy efficiency. LinkSwitchintroduces a revolutionary topology for the design of low power switching power supplies that rivals the simplicity and low cost of linear adapters, and enables a muchsmaller, lighter, and attractive package when compared with the traditional "brick". With efficiency of up to 75% at 3 W output and < 300 mW no-load consumption,a LinkSwitch solution can save the end user enough energy over a linear design to completely pay for the power supply cost in less than one year. LinkSwitch integrates a 700 V power MOSFET, PWM control, high voltage start-up, current limit, and thermal shutdown circuitry, onto a monolithic IC.