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SY8113I - Synchronous Step Down Regulator

Description

The SY8113I is a high efficiency, 500kHz synchronous step-down DC/DC regulator capable of delivering up to 3A load current.

It can operate over a wide input voltage range from 4.2V to 18V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.

Features

  • Low RDS(ON) for Internal Switches (Top/Bottom): 80mΩ/40mΩ.
  • 4.2-18V Input Voltage Range.
  • 3A Output Current Capability.
  • 500kHz Switching Frequency Minimize the External Components.
  • Stable with 10µF COUT and 2.2µH Inductor.
  • Instant PWM Architecture to Achieve Fast Transient Responses.
  • Internal Soft-start Limits the Inrush Current.
  • Cycle-by-cycle Peak/Valley Current Limitation.
  • Hic-cup Mode Output Short Circuit Protection.
  • Thermal Shutdown with Auto.

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Datasheet Details

Part number SY8113I
Manufacturer Silergy
File Size 934.92 KB
Description Synchronous Step Down Regulator
Datasheet download datasheet SY8113I Datasheet

Full PDF Text Transcription (Reference)

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SY8113I General Description The SY8113I is a high efficiency, 500kHz synchronous step-down DC/DC regulator capable of delivering up to 3A load current. It can operate over a wide input voltage range from 4.2V to 18V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The SY8113I adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 500kHz to minimize the size of the inductor and the capacitor. Ordering Information SY8113 □(□□)□ Tempera ture Code Pa cka ge Code Optional Spec Code Ordering Number Package type Note SY8113IADC TSOT23-6 ---- Typical Application CBS 100nF VIN :4.
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