Home Products AC-DC Converters AC Input Buck Converter

SY22847BFAC (SY50271BFAC)

Production
AC Input Buck Regulator
Datasheet
SY22847BFAC AC Input Buck Regulator Datasheet
Part number SY22847BFAC
Pout (max) (W) 4.3
HV startup YES
Iout (max) (A) 0.36
Vout (typ)(V) 12V
Breakdown voltage (V) 650
Ron (typ) (mΩ) 9
Switching frequency (min)(kHz) 37
Switching frequency (max)(kHz) 40
Operation mode CCM/DCM
No load loss (mW) <50
Features Multi-off-time control
Package SO8
Operating temperature range(°C) -40 to 125
Functional safety category
  • Integrated 650V MOSFET
  • High Voltage Startup Circuit
  • 50mW No-Load Power Consumption
  • Multi-Off-Time Control
  • Minimal External Components
  • Overtemperature Protection (OTP)
  • Output Overvoltage Protection (OVP)
  • Compact Package: SO8

Evaluation Board

  • 2026-01-12_160151

    Photo of evaluation board

  • 2026-01-12_160140

    Photo of evaluation board

EVB_SY22847BFAC

The EVB_SY22847BFAC is intended for evaluating AC Input Buck Regulator

Technical Documentation

Title Date
Silergy_Catalog_Q3_2026 2026-11-04