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SY21052AFCC (SY8502AFCC)

Production
High Efficiency, 1.2A Continuous, 1.8A Peak, 85V Input Buck
Datasheet
SY21052AFCC High Efficiency, 1.2A Continuous, 1.8A Peak, 85V Input Buck Datasheet
Part number SY21052AFCC
Channel(#) 1
Vin (min) (V) 7
Vin (max) (V) 85
Switching frequency (min)(kHz) 200
Switching frequency (max)(kHz) 500
Vout (min) (V) 1.2
Vout (max) (V) 24
Iout (max) (A) 1.2
Vout2 (min)(V)
Vout2 (max )(V)
Iout2 (max)(A)
Vref accuracy (±%) 2
Vout accuracy(±%)
Control mode COT+Ripple
Duty cycle (max)(%) 75
Operation mode FCCM
Iq (typ) (uA)
Features
Package SO8E
Operating temperature range(°C) -40 to 125
Functional safety category
  • Low RDS(ON) for Internal Switches (Top/Bottom): 500mΩ/240mΩ
  • 7-85V Input Voltage Range
  • 1.2A Continuous, 1.8A Peak Output Current Capability
  • Adjustable Switching Frequency
  • Instant PWM Architecture to Achieve Fast Transient Responses
  • Programmable Switching Frequency Range: 200~500 kHz
  • 2ms Internal Soft-start Limits the Inrush Current
  • Precise ±2% 1.2V Reference
  • RoHS Compliant  and Halogen Free
  • Compact  Package: SO8E

Evaluation Board

  • 21052A-1

    Photo of evaluation board

  • 21052A-2

    Photo of evaluation board

  • 21052A-3

    Photo of evaluation board

EVB_SY21052AFCC

The EVB_SY21052AFCC is intended for evaluating 1.2A continuous, 1.8A peak current and 85V maximum input voltage synchronous step down regulator.

Technical Documentation

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