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ISL91133 - High Efficiency 2.3A Boost Regulator

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.

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 preview – ISL91133

Datasheet Details

Part number ISL91133
Manufacturer Renesas Electronics
File Size 767.37 KB
Description High Efficiency 2.3A Boost Regulator
Datasheet download datasheet ISL91133 Datasheet
Additional preview pages of the ISL91133 datasheet.

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Full PDF Text Transcription

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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.
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