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Home » NEWEST Products » New by Manufacturer » Texas Instruments » LM2840 / LM2841 / LM2842 Step-Down DC/DC Regulators - TI
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National Products from Texas Instruments LM2840 / LM2841 / LM2842 Step-Down DC/DC Regulators

Texas Instruments LM2840 / LM2841 / LM2842 Step-Down DC/DC Regulators

Texas Instruments LM2840 / LM2841 / LM2842 Step-Down DC/DC Regulators feature a wide input range from 4.5V-42V and are suitable for a wide range of applications, such as power conditioning from unregulated sources. These TI DC/DC buck regulators feature a low RDSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency of the LM2840 / LM2841 / LM2842 is fixed at 550kHz (X version) and 1.25MHz (Y version), allowing the use of small external components while still being able to have low output voltage ripple. The LM2840 is optimized for up to 100mA, the LM2841 for 300mA, and the LM2842 for up to 600mA load currents. They all have a 0.765V nominal feedback voltage.

Features
  • LM2840Q, LM2841Q, and LM2842Q are Automotive Grade products that are AEC-Q100 grade 1 qualified (-40°C to +125°C operating junction temperature)
  • Input voltage range of 4.5V to 42V
  • Output current options of 100mA (LM2840), 300mA (LM2841), and 600mA (LM2842)
  • Feedback pin voltage of 0.765V
  • 550kHz (X) or 1.25MHz (Y) switching frequency
  • Low shutdown IQ, 16μA typical
  • Short circuit protected
  • Internally compensated
  • Soft-start circuitry
Applications
  • Battery powered equipment
  • Industrial distributed power applications
  • Portable media players
  • Portable hand held instruments
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