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LM2842 - 100/300/600 mA Input Step-Down DC/DC Regulator

General Description

The LM2840, LM2841 and LM2842 are PWM DC/DC buck (step-down) regulators.

With a wide input range from 4.5V-42V, they are suitable for a wide range of applications such as power conditioning from unregulated sources.

Key Features

  • include: thermal shutdown, VIN under-voltage lockout, and gate drive under-voltage lockout. The LM2840, LM2841 and LM2842 are available in a low profile TSOT-6L package. 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 100 mA, 300 mA and 600 mA.
  • Feedback pin voltage of 0.765V.
  • 550 kHz (X) or 1.25 MHz (Y).

📥 Download Datasheet

Datasheet Details

Part number LM2842
Manufacturer National Semiconductor Corporation
File Size 288.80 KB
Description 100/300/600 mA Input Step-Down DC/DC Regulator
Datasheet download datasheet LM2842 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM2840/LM2841/LM2842/LM2840Q/LM2841Q/LM2842Q 100 / 300 / 600 mA Input Step-Down DC/ DC Regulator in Thin SOT-23 LM2840/LM2841/LM2842/ LM2840Q/LM2841Q/ LM2842Q August 23, 2011 100/300/600 mA Input Step-Down DC/DC Regulator in Thin SOT-23 General Description The LM2840, LM2841 and LM2842 are PWM DC/DC buck (step-down) regulators. With a wide input range from 4.5V-42V, they are suitable for a wide range of applications such as power conditioning from unregulated sources. They feature a low RDSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 550 kHz (X version) and 1.25 MHz (Y version) allowing the use of small external components while still being able to have low output voltage ripple.