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SY8891E - 5.5V/1A Synchronous Step Down Regulator

General Description

SY8891E is a high efficiency 1.5MHz synchronous step down DC/DC regulator, capable of delivering up to 1A output current.

It can operate over a wide input voltage range from 2.5V to 5.5V and integrate main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss.

Key Features

  • 2.5V to 5.5V Input Voltage Range.
  • Low RDS(ON) for Internal Switches (top/bottom) 170mΩ /100mΩ.
  • High Switching Frequency 1.5MHz Minimizes the External Components.
  • Internal Soft-start Limits the Inrush Current.
  • 100% Dropout Operation.
  • Forced PWM Operation.
  • Power Good Indicator.
  • Hic-cup for Short Circuit Protection.
  • Output Auto Discharge Function.
  • RoHS Compliant and Halogen Free.
  • Compact Package: SOT563.

📥 Download Datasheet

Datasheet Details

Part number SY8891E
Manufacturer Silergy
File Size 799.06 KB
Description 5.5V/1A Synchronous Step Down Regulator
Datasheet download datasheet SY8891E 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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General Description SY8891E is a high efficiency 1.5MHz synchronous step down DC/DC regulator, capable of delivering up to 1A output current. It can operate over a wide input voltage range from 2.5V to 5.5V and integrate main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss. SY8891E is in a space saving, low profile SOT563 package. Ordering Information SY8891 □(□□)□ Tempera ture Code Pa cka ge Code Optional Spec Code Ordering Number Package type Note SY8891EARC SOT563 -- SY8891E High Efficiency, 1.5MHz, 5.5V/1A Synchronous Step Down Regulator Features  2.5V to 5.5V Input Voltage Range.  Low RDS(ON) for Internal Switches (top/bottom) 170mΩ /100mΩ  High Switching Frequency 1.