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SM8103E - Synchronous Step Down Regulator

Description

The SM8103E 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 4.5V 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): 90mΩ/50mΩ.
  • 4.5-18V 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.
  • Forced PWM Operation.
  • Cycle-by-cycle Peak/Valley Current Limitation.
  • Hic-cup Mode Output Short Circuit Protection.

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Datasheet preview – SM8103E

Datasheet Details

Part number SM8103E
Manufacturer Silergy
File Size 599.46 KB
Description Synchronous Step Down Regulator
Datasheet download datasheet SM8103E Datasheet
Additional preview pages of the SM8103E datasheet.

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Full PDF Text Transcription

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SM8103E High Efficiency, 3.0A, 18V Input Synchronous Step Down Regulator Advanced Design Specification General Description The SM8103E 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 4.5V to 18V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The SM8103E adopts the instant PWM architecture to achieve fast transient responses for high step down applications. In addition, it operates at pseudoconstant frequency of 500kHz to minimize the size of the inductor and the capacitor.
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