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SY22646AFCC (SY8746AFCC)

Production
High Efficiency 60V, 0.8A, 350KHz Constant Current Step-down Regulator
Datasheet
SY22646AFCC High Efficiency 60V, 0.8A, 350KHz Constant Current Step-down Regulator Datasheet
Part number SY22646AFCC
Description Buck CC regulator with 60V/660mΩ MOS, ON/OFF dimming
Channel(#) 1
Topology Buck
Dimming mode PWM,Analog
Fsw(kHz) 350
Vin (min) (V) 12
Vin (max) (V) 60
Iout (max) (A) 0.8
Package SO8E
Application DC CC buck
  • Low RDS(ON) for Internal Switches :680mΩ
  • Input Range: 12V-60V
  • 350kHz Switching Frequency
  • 1.2A MOSFET Peak Current Limitation
  • Analog/PWM Dimming Available
  • Lower than 0.5% Deep Dimming Level
  • Adjustable Thermal Foldback Temperature
  • Dimming Resistor to Adjust Output Full Load
  • Compact Package: SO8E

SY22646A is a high efficiency, 12V-60V wide input voltage range DC/DC regulator targeting at LED lighting applications. The device integrates the low RDS(ON) MOSFET and internal compensation. Along with the small SO8E package, the device achieves an extremely small solution size for LED driver design. SY22646A also supports PWM dimming and Analog dimming function.

Evaluation Board

  • 2026-03-19_103401

    Photo of evaluation board

  • 2026-03-19_103339

    Photo of evaluation board

  • 2026-03-19_103349

    Photo of evaluation board

EVB_SY22646AFCC

The EVB_SY22646AFCC is intended for evaluating High Efficiency, 60V, 0.8A, 350KHz Constant Current Step-down Regulator

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12