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SY21142 Datasheet Asynchronous Buck Converter

Manufacturer: Silergy

Overview: SY21142 High-Efficiency, 2A, 60V Input Asynchronous Buck Converter.

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General Description

The SY21142 high-efficiency asynchronous Buck converter can deliver 2A output current over a wide input voltage range from 4.5V to 60V.

The SY21142 employs a constant off-time and peak current mode control strategy to achieve fast transient responses.

It integrates a main switch with low RDS(ON) to minimize conduction loss.

Key Features

  • Low RDS(ON) for Internal N-channel Power FET: 175mΩ.
  • 4.5V to 60V Input Voltage Range.
  • Up to 2A Output Current.
  • Adjustable Switching Frequency Range: 100kHz to 1MHz.
  • Constant Off-Time and Peak Current Mode Control.
  • Internal Soft-Start Limits Inrush Current.
  • ±1% 0.8V Reference.
  • EN ON/OFF Control with Accurate Threshold.
  • Hiccup Mode Output Short Circuit Protection.
  • Cycle-by-Cycle Peak Current Limit.
  • Over Temperature Protection.
  • RoHS-Compl.

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