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SY21163FCC (SY8293FCC)

Production
High Efficiency, 800kHz, 40V Input, 3A Non-synchronous Step Down Regulator
Datasheet
SY21163FCC High Efficiency, 800kHz, 40V Input, 3A Non-synchronous Step Down Regulator Datasheet
Part number SY21163FCC
Channel(#) 1
Vin (min) (V) 5
Vin (max) (V) 40
Switching frequency (min)(kHz) 800
Switching frequency (max)(kHz) 800
Vout (min) (V) 0.6
Vout (max) (V) 12
Iout (max) (A) 3
Vout2 (min)(V)
Vout2 (max )(V)
Iout2 (max)(A)
Vref accuracy (±%) 2
Vout accuracy(±%)
Control mode COT OFF+Ipeak
Duty cycle (max)(%) 80
Operation mode Auto PFM
Iq (typ) (uA) 160
Features Asynchronous
Package SO8E
Operating temperature range(°C) -40 to 125
Functional safety category
  •      5-40V Input Voltage Range
  •      Low RDS(ON) for Internal N-Channel Power FET:180mΩ
  •      800kHz Switching Frequency
  •      Adaptive Constant OFF Time Control
  •      Internal Softstart Limits The Inrush Current
  •      2% 0.6V Reference
  •      RoHS Compliant and Halogen Free
  •      Compact Package: SO8E

The SY21163 is a high efficiency 800 kHz, adaptive constant OFF time controlled non-synchronous step-down DC-DC regulator capable of delivering 3A output current respectively. The SY21163 can operate over a wide input voltage range from 5V to 40V and integrate the main switch with very low RDS(ON) to minimize the conduction loss. 

Low output voltage ripple and small external inductor and capacitor sizes are achieved with 800 kHz switching frequency.

Evaluation Board

  • 21163-1

    Photo of evaluation board

  • 21163-2

    Photo of evaluation board

  • 21163-3

    Photo of evaluation board

EVB_SY21163FCC

The EVB_SY21163FCC is intended for evaluating 3A output current, 40V Input, non-synchronous step down DC/DC regulator.

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12
SO8E 2022-05-20