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LM26400Y - 500kHz Wide Input Range Buck Regulator

Description

The LM26400Y is a monolithic, two-output fixed frequency PWM step-down DC/DC regulator in a 16-pin LLP or thermally enhanced ETSSOP package.

With a minimum number of external components and internal loop compensation, the LM26400Y is easy to use.

Features

  • include programmable soft-start circuitry to reduce inrush current, pulse-by-pulse current limit and frequency foldback, integrated bootstrap structure and thermal shutdown. Features.
  • Input voltage range of 3-20V Dual 2A output Output voltage down to 0.6V Internal compensation 500kHz PWM frequency Separate enable pins Separate soft start pins Frequency foldback protection 175mΩ NMOS switch Integrated bootstrap diodes O.

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Datasheet preview – LM26400Y

Datasheet Details

Part number LM26400Y
Manufacturer National Semiconductor
File Size 2.39 MB
Description 500kHz Wide Input Range Buck Regulator
Datasheet download datasheet LM26400Y Datasheet
Additional preview pages of the LM26400Y datasheet.

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Full PDF Text Transcription

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LM26400Y Dual 2A, 500kHz Wide Input Range Buck Regulator February 2007 LM26400Y Dual 2A, 500kHz Wide Input Range Buck Regulator General Description The LM26400Y is a monolithic, two-output fixed frequency PWM step-down DC/DC regulator in a 16-pin LLP or thermally enhanced ETSSOP package. With a minimum number of external components and internal loop compensation, the LM26400Y is easy to use. The ability to drive 2A loads with an internal 175mΩ NMOS switch using state-of-the-art 0.5µm BiCMOS technology results in a high-power density design. The world class control circuitry allows for an ON-time as low as 40 ns, thus supporting high-frequency conversion over the entire input range of 3V to 20V and down to an output voltage of only 0.6V.
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