Datasheet4U Logo Datasheet4U.com

ISL91108 Datasheet High Efficiency Buck-Boost Regulator

Manufacturer: Renesas

Overview

DATASHEET ISL91108 High Efficiency Buck-Boost Regulator with 4.2A Switches FN8448 Rev 1.00 November 12, 2014 The ISL91108 is a highly-integrated buck-boost switching regulator that accepts input voltages either above or below the regulated output voltage.

Unlike other buck-boost regulators, this regulator automatically transitions between operating modes without significant output disturbance.

This device is capable of delivering up to 2.7A of burst current (PVIN = 3V, VOUT = 3.3V), and provides excellent efficiency due to its fully synchronous 4-switch architecture.

Key Features

  • Accepts input voltages above or below regulated output voltage.
  • Automatic and seamless transitions between buck and boost modes.
  • Input voltage range: 1.8V to 5.5V.
  • Output current: up to 1.6A DC (PVIN = 2.8V, VOUT = 3.3V).
  • Burst current: up to 2.7A (PVIN = 3V, VOUT = 3.3V, tON.