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ISL8088 - Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator

Description

FB1 The feedback network of the Channel 1 regulator.

FB1 is the negative input to the transconductance error amplifier.

voltage is set by an external resistor divider connected to FB1.

Features

  • include internal digital softstart, enable for power sequence, overcurrent protection, and thermal shutdown. The ISL8088 is offered in a 3mmx3mm 10 Ld DFN package with 1mm maximum height. The complete converter occupies less than 1.8cm2 area. Features.
  • Internal Current Mode Compensation.
  • 100% Maximum Duty Cycle for Lowest Dropout.
  • Selectable Forced PWM Mode and PFM Mode.
  • External Synchronization up to 4MHz.
  • Start-up with Pre-biased Output.
  • S.

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Datasheet preview – ISL8088

Datasheet Details

Part number ISL8088
Manufacturer Renesas
File Size 1.82 MB
Description Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator
Datasheet download datasheet ISL8088 Datasheet
Additional preview pages of the ISL8088 datasheet.

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Full PDF Text Transcription

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DATASHEET ISL8088 Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator FN6858 Rev 2.00 May 26, 2011 The ISL8088 is a high efficiency, dual synchronous step-down DC/DC regulator that can deliver up to 800mA continuous output current per channel. The supply voltage range of 2.75V to 5.5V allows the use of a single Li+ cell, three NiMH cells or a regulated 5V input. The current mode control architecture enables very low duty cycle operation at high frequency with fast transient response and excellent loop stability. The ISL8088 operates at 2.25MHz switching frequency allowing the use of small, low cost inductors and capacitors. Each channel is optimized for generating an output voltage as low as 0.6V.
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