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LX7178 - 5A Constant Frequency Hysteretic Synchronous Buck Regulator

Datasheet Summary

Features

  • The LX7178 is a digitally controlled step-down regulator IC with an integrated 40mΩ high-side P-channel MOSFET and a 14mΩ low-side N-channel MOSFET. It features Microsemi’s proprietary constant-frequency hysteretic control engine for near-instantaneous correction to line/load transients. It does not require high-ESR output capacitors and incorporates energysaving “PSM” (Power Save or Pulse Skip Mode) at light loads, to extend battery life in mobile.

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Datasheet Details

Part number LX7178
Manufacturer Microsemi
File Size 1.53 MB
Description 5A Constant Frequency Hysteretic Synchronous Buck Regulator
Datasheet download datasheet LX7178 Datasheet
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Full PDF Text Transcription

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LX7178 3V to 5.5V, 5A Constant Frequency Hysteretic Synchronous Buck Regulator with I2C Production Datasheet Description Features The LX7178 is a digitally controlled step-down regulator IC with an integrated 40mΩ high-side P-channel MOSFET and a 14mΩ low-side N-channel MOSFET. It features Microsemi’s proprietary constant-frequency hysteretic control engine for near-instantaneous correction to line/load transients. It does not require high-ESR output capacitors and incorporates energysaving “PSM” (Power Save or Pulse Skip Mode) at light loads, to extend battery life in mobile applications. The LX7178 has an I2C serial interface port for output voltage margining and monitoring if required (it can also operate in default mode). In addition it includes robust fault monitoring functions.
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