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SY8089A - Synchronous Step Down Regulator

This page provides the datasheet information for the SY8089A, a member of the SY8089 Synchronous Step Down Regulator family.

Datasheet Summary

Description

The SY8089 and SY8089A are high-efficiency, high frequency synchronous step-down DC-DC regulator IC capable of delivering up to 2A output current.

Features

  • Low RDS(ON) for internal switches (top/bottom):110mΩ/80mΩ.
  • 2.7-5.5V input voltage range.
  • 2A continuous, 3A peak load current capability.
  • 1MHz switching frequency minimizes the external components.
  • Internal softstart limits the inrush current.
  • Reliable short circuit protection: SY8089: Latch off protection SY8089A: Hic-cup mode protection.
  • Reliable over-voltage protection: SY8089: Latch off protection SY8089A: No latch off protection.

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Datasheet preview – SY8089A

Datasheet Details

Part number SY8089A
Manufacturer Silergy
File Size 1.57 MB
Description Synchronous Step Down Regulator
Datasheet download datasheet SY8089A Datasheet
Additional preview pages of the SY8089A datasheet.

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Other Datasheets by Silergy
  • SY8089A1 - 2A Synchronous Step Down Regulator
  • SY8089 - Synchronous Step Down Regulator
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Full PDF Text Transcription

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Application Note: AN_SY8089/SY8089A High Efficiency 5.5V, 2A continuous, 3A peak, 1MHz Synchronous Step Down Regulator General Description The SY8089 and SY8089A are high-efficiency, high frequency synchronous step-down DC-DC regulator IC capable of delivering up to 2A output current. The SY8089 and SY8089A operate over a wide input voltage range from 2.7V to 5.5V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. Low output voltage ripple and small external inductor and capacitor sizes are achieved with greater than 1MHz switching frequency. SY8089 integrates short circuit and over-voltage latch off protection.
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