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ISL85003 - Highly Efficient 3A Synchronous Buck Regulator

General Description

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Key Features

  • Input voltage range 4.5V to 18V.
  • Output voltage adjustable from 0.8V, ±1%.
  • Efficiency up to 95%.
  • Integrated boot diode with undervoltage detection.
  • Current mode control - DCM/CCM - Internal or external compensation options - 500kHz switching frequency option - External synchronization up to 2MHz on ISL85003.
  • Adjustable soft-start time on the ISL85003A.
  • Open-drain PG window comparator - Built-in protection - Positive and negative ove.

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Datasheet Details

Part number ISL85003
Manufacturer Renesas
File Size 1.50 MB
Description Highly Efficient 3A Synchronous Buck Regulator
Datasheet download datasheet ISL85003 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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DATASHEET ISL85003, ISL85003A Highly Efficient 3A Synchronous Buck Regulator The ISL85003 and ISL85003A are synchronous buck regulators with integrated high-side and low-side FETs. The regulator can operate from an input voltage range of 4.5V to 18V while delivering a very efficient continuous 3A current. This is all delivered in a very compact 3mmx4mm DFN package. The ISL85003 is designed on Renesas’ proprietary fab process that is designed to deliver very low rDS(ON) FETs with an optimized current mode controller wrapped around it. The high-side NFET is designed to have an rDS(ON) of 65mΩ while the low-side NFET is designed to have an rDS(ON) of 45mΩ. With these two FETs, the device delivers very high efficiency power to the load.