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ISL85003A - Highly Efficient 3A Synchronous Buck Regulator

Download the ISL85003A datasheet PDF. This datasheet also covers the ISL85003 variant, as both devices belong to the same highly efficient 3a synchronous buck regulator family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ISL85003-Renesas.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number ISL85003A
Manufacturer Renesas
File Size 1.50 MB
Description Highly Efficient 3A Synchronous Buck Regulator
Datasheet download datasheet ISL85003A Datasheet

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.

View original datasheet text
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.