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SY8843 - Ultra Fast Dynamic Response Synchronous Step Down Regulator

General Description

The SY8843 and SY8843L are high efficiency 1.5MHz synchronous step down DC/DC regulators capable of delivering up to 3A output current.

Key Features

  • 2.7~5.5V Input Voltage Range.
  • 65µA Low Quiescent Current.
  • Ultra Fast Load Transient Speed.
  • Low RDS(ON) for Internal Switches (Top/Bottom) 85mΩ /50mΩ.
  • High Switching Frequency 1.5MHz Minimizes the External Components.
  • Internal Soft-start Limits the Inrush Current.
  • Reliable Short Circuit Protection  SY8843: Hic-cup Mode Protection  SY8843L: Latch Off Protection.
  • Reliable OVP and OTP Protection  SY8843: No Latch Off Protection  SY8843L: Latch Off Protect.

📥 Download Datasheet

Datasheet Details

Part number SY8843
Manufacturer Silergy
File Size 527.08 KB
Description Ultra Fast Dynamic Response Synchronous Step Down Regulator
Datasheet download datasheet SY8843 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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SY8843/SY8843L High Efficiency 1.5MHz, 3A Ultra Fast Dynamic Response Synchronous Step Down Regulator ` General Description The SY8843 and SY8843L are high efficiency 1.5MHz synchronous step down DC/DC regulators capable of delivering up to 3A output current. The SY8843 and SY8843L can 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, small external inductor and capacitor sizes are achieved with 1.5MHz switching frequency. Ordering Information SY8843 □(□□)□ Tempera ture Code Pa cka ge Code Optional Spec Code Ordering Number Package type Note SY8843QWC QFN1.5×1.5-7 -- SY8843LQWC QFN1.5×1.5-7 -- Features  2.7~5.