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SY21612QFC (SY9329QFC)

Production
High Efficiency, 28V Input Single Inductor Synchronous Step Up/Down Regulator
Datasheet
SY21612QFC High Efficiency, 28V Input Single Inductor Synchronous Step Up/Down Regulator Datasheet
Part number SY21612QFC
Vin (min) (V) 4
Vin (max) (V) 28
Current limit (A) Programmable 6A/8A/10A
Switching frequency (min)(kHz) Programmable 0.25/0.5/0.75/1
Switching frequency (max)(kHz)
Vout (min) (V) 5
Vout (max) (V) 20
Vref accuracy (±%) 1.5
Vout accuracy(±%)
Iq (typ) (uA) 310
Features
Package QFN4×4-32
Operating temperature range(°C) -40 to 125
Functional safety category
  • Bidirectional Power Delivery: Source Mode and Sink Mode
  • 4V to 28V Input Voltage Range
  • Low RDS(ON) for Internal Switches: 25mΩ
  • Internal Soft Start
  • 8-bit ADC for Output Voltage, Input Voltage and VBUS Output Current Detection
  • Fully Protected for Output Over Current, Short-circuit and Over-temperature
  • I2C Compatible Interface
  • Support Interrupt for Status Feedback
  • Selectable Switching Frequency:250kHz, 500kHz, 750kHz, 1MHz
  • Selectable VBUS Output Voltage:5V, 7V, 9V, 12V, 15V, 20V
  • Selectable Inductor Current Limit and VBUS  Output Current Limit
  • Compact Package: QFN4×4-32

Evaluation Board

  • 21612-1

    Photo of evaluation board

  • 21612-2

    Photo of evaluation board

  • 21612-3

    Photo of evaluation board

  • 21612-4

    Photo of evaluation board

  • 21612-5

    Photo of evaluation board

EVB_SY21612QFC

The EVB_SY21612QFC is intended for evaluating high efficiency, 28V Input, single inductor synchronous step up/down regulator.

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12

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