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SY22177ABC (SY8708ABC)

Production
High Efficiency, 1MHz, 0.8A, 25V Step Down White LED Driver
Datasheet
SY22177ABC High Efficiency, 1MHz, 0.8A, 25V Step Down White LED Driver Datasheet
Part number SY22177ABC
Description Buck CC with 25V/200mΩ MOS, analog dimming
Channel(#) 1
Topology Buck
Dimming mode Analog
Fsw(kHz) 1000
Vin (min) (V) 2.8
Vin (max) (V) 25
Iout (max) (A) 0.8
Package SOT23-6
Application IR LED
  • Wide input range: 2.8-25 V
  • 1 MHz switching frequency
  • Very low RON: 200mΩ
  • 0.65-1.2V analog dimming
  • Compact package: SOT23-6
  • RoHS Compliant and Halogen Free

 

SY22177 is a high efficiency step down regulator capable of driving 0.8A white LED from up to 25V input. It integrates the low RON MOSFET and internal compensation. The 1MHz switching frequency allows the use of very small inductor. The LED current is programmable through the external resistor. It supports analog dimming function.  

Evaluation Board

  • 2022-02-22_095750

    Photo of evaluation board

  • 2022-02-22_095740

    Photo of evaluation board

  • 2022-02-22_095740

    Photo of evaluation board

  • 2022-02-22_095759

    Photo of evaluation board

EVB_SY22177ABC

The EVB_SY22177ABC is intended for evaluating High Efficiency 1MHz, 0.8A, 25V Step Down White LED Driver

Technical Documentation

Title Date
Silergy_Catalog_Q3_2026 2026-11-04