ISL85403 Datasheet - Renesas

ISL85403 - 2.5A Regulator

DATASHEET ISL85403 2.5A Regulator with Integrated High-side MOSFET for Synchronous Buck or Boost Buck Converter FN8631 Rev.4.00 Sep 28, 2020 The ISL85403 is a 40V, 2.5A synchronous buck or boost buck controller with an integrated high-side MOSFET and low-side driver. In Buck mode, the ISL85403 supports a wide input range of 3V to 40V. In Boost-Buck mode, the input range can be extended down to 2.5V and output regulation can be maintained when VIN drops below VOUT, enabling sensitive electroni.

ISL85403 Features

* Buck mode: input voltage range 3V to 40V (See “Input Voltage” for more details)

* Boost mode expands operating input voltage lower than 2.5V (See “Input Voltage” for more details)

* Selectable Forced PWM mode or PFM mode

* 300µA IC quiescent current (PFM, no load);

ISL85403-Renesas.pdf