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SY20018I Datasheet 1a Synchronous Step-down Regulator

Manufacturer: Silergy

Overview: SY20018I High-Efficiency, 1.5MHz,1A Synchronous Step-Down Regulator.

Datasheet Details

Part number SY20018I
Manufacturer Silergy
File Size 1.35 MB
Description 1A Synchronous Step-Down Regulator
Datasheet SY20018I-Silergy.pdf

General Description

The SY20018I high-efficiency 1.5MHz synchronous step-down DC/DC regulator operates over a wide input voltage range of 2.5V to 5.5V, and can deliver an output current up to 1A with a low quiescent current of 50µA.

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

The 1.5MHz switching frequency allows for low output-voltage ripple, as well as small external inductor and capacitor values.

Key Features

  • 2.5V to 5.5V Input Voltage Range.
  • Up to 1A Output Current.
  • Low RDS(ON) for Internal Switches: 260mΩ Top, 160mΩ Bottom.
  • Low 50μA Quiescent Current.
  • High 1.5MHz Switching Frequency Minimizes Required External Components.
  • Constant-Off-Time and Peak-Current-Mode Control.
  • Internal Soft-Start Limits the Inrush Current.
  • 100% Dropout Operation.
  • Power-Good Indicator.
  • Hiccup Mode for Short-Circuit Protection.
  • Output Auto-Discharge Function.
  • RoHS.

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