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ISL91133 - High Efficiency 2.3A Boost Regulator

General Description

VOUT Boost output; connect a 2x22µF capacitor to PGND.

PGND Power ground for high switching current.

Power input; Range: 2.35V to 5.4V.

Key Features

  • Input voltage range: 2.35V to 5.4V.
  • Output current: up to 2.3A (VIN = 2.5V, VOUT = 3.3V).
  • Burst current up to 2.5A (VIN = 2.5V, VOUT = 3.3V, tON < 600µs, T = 4.6ms).
  • High efficiency: up to 96%.
  • 108µA quiescent current minimizes standby consumption in Boost mode, 45µA in Forced Bypass mode.
  • 2.5MHz switching frequency minimizes external component size.
  • Forced Bypass or Auto Bypass modes with a 38mΩ switch.
  • PFM mode at light l.

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Datasheet Details

Part number ISL91133
Manufacturer Renesas
File Size 767.37 KB
Description High Efficiency 2.3A Boost Regulator
Datasheet download datasheet ISL91133 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 ISL91133 High Efficiency 2.3A Boost Regulator with Input-to-Output Bypass FN8680 Rev 1.00 Jul 12, 2018 The ISL91133 is an integrated boost switching regulator for battery powered applications. The device provides a power supply solution for products using a one cell Li-ion or Li-polymer battery. The device is capable of delivering up to 2.3A output current from VIN = 2.5V and VOUT = 3.3V. The no load quiescent current is only 108μA in Boost mode and 45μA in Forced Bypass mode, which significantly reduces the standby consumption. The ISL91133 offers a Bypass mode operation where the output is directly connected to the input through a 38mΩ MOSFET to allow a significantly lower dropout voltage. The Bypass mode can be entered by an external command, or by auto bypass.