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ISL91134 - High Efficiency 1.8A Boost Regulator

Description

B3, B4 VOUT Boost output; connect a 22µF capacitor to PGND.

D2, D3, PGND Power ground for high switching current.

VIN Power input; Range: 2.35V to 5.4V.

Features

  • Input voltage range: 2.35V to 5.4V.
  • Output current: up to 1.8A (VIN = 3V, VOUT = 5V).
  • 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-load currents.
  • Fully protected for overcurrent, over-temperature, and undervoltag.

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Datasheet preview – ISL91134

Datasheet Details

Part number ISL91134
Manufacturer Renesas Electronics
File Size 687.93 KB
Description High Efficiency 1.8A Boost Regulator
Datasheet download datasheet ISL91134 Datasheet
Additional preview pages of the ISL91134 datasheet.

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Full PDF Text Transcription

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DATASHEET ISL91134 High Efficiency 1.8A Boost Regulator With Input-to-Output Bypass FN8678 Rev.2.00 Dec 20, 2018 The ISL91134 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 1.8A output current from VIN = 3V and VOUT = 5V. The no-load quiescent current is only 108µA in Boost Mode and 45µA in Forced Bypass Mode, which significantly reduces the standby consumption. The ISL91134 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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