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ISL91110 - High Efficiency Buck-Boost Regulator

General Description

Power input; Range: 1.8V to 5.5V.

Connect 2x10μF capacitors to PGND.

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 2A (PVIN = 2.5V, VOUT = 3.3V).
  • Burst current: up to 3A (PVIN = 3V, VOUT = 3.3V, tON < 600µs, t = 4.6ms).
  • High efficiency: up to 96%.
  • 35µA quiescent current maximizes light-load efficiency.
  • 2.5MHz switching frequency minimizes external compon.

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Datasheet Details

Part number ISL91110
Manufacturer Renesas
File Size 790.56 KB
Description High Efficiency Buck-Boost Regulator
Datasheet download datasheet ISL91110 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 ISL91110 High Efficiency Buck-Boost Regulator with 4.5A Switches FN8434 Rev 4.00 February 5, 2016 The ISL91110 is a high-current buck-boost switching regulator for systems using new battery chemistries. It uses Intersil’s proprietary buck-boost algorithm to maintain voltage regulation while providing excellent efficiency and very low output voltage ripple when the input voltage is close to the output voltage. The ISL91110 is capable of delivering at least 2A continuous output current (VOUT = 3.3V) over a battery voltage range of 2.5V to 4.35V. This maximizes the energy utilization of advanced single-cell Li-ion battery chemistries that have significant capacity left at voltages below the system voltage.