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SY21061FABC (SY8291FABC)

Production
High Efficiency, 300kHz, 36V Input, 1.2A Asynchronous Step Down Regulator
Datasheet
SY21061FABC High Efficiency, 300kHz, 36V Input, 1.2A Asynchronous Step Down Regulator Datasheet
Part number SY21061FABC
Channel(#) 1
Vin (min) (V) 9
Vin (max) (V) 36
Switching frequency (min)(kHz) 300
Switching frequency (max)(kHz) 300
Vout (min) (V) 0.81
Vout (max) (V) 12
Iout (max) (A) 1.2
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 SOT23-6
Operating temperature range(°C) -40 to 125
Functional safety category

 

  • 9-36V Input Voltage Range
  • Low RDS(ON) for Internal N-channel Power FET: 180 mΩ
  • 300kHz Switching Frequency
  • Adaptive Constant OFF Time Control
  • Internal Soft-start Limits the Inrush Current
  • 2% 0.81V Reference
  • RoHS Compliant and Halogen Free
  • Compact Package: SOT23-6

 

Evaluation Board

  • 21061F-1

    Photo of evaluation board

  • 21061F-2

    Photo of evaluation board

  • 21061F-3

    Photo of evaluation board

EVB_SY21061FABC

The EVB_SY21061FABC is intended for evaluating 1.2A output current, 36V input, asynchronous stepdown DC-DC regulator. 

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12