SY20614QQC - High Efficiency 4A, 1.8MHz, I2C Programmable Inductor Built-in Synchronous Step Down Regulator


  • 2.6V to 5.5V Input Voltage Range
  • Fixed Frequency Operation: 1.8MHz
  • Low RDS(ON) for Internal Switches (Top/Bottom): 70mΩ/40mΩ
  • Programmable Output Voltage: 0.7625V to 1.55V in 12.5mV Steps
  • Default 1.15V Output Voltage
  • 4A Continuous Output Current Capability
  • PFM/PWM Operation for Optimum Increased Efficiency
  • OVP/OCP/UVLO/OTP Protection
  • Compact Package: QFN3×3-12

Typical Application


The SY20614 is a high efficiency 1.8MHz 4A synchronous step down DC/DC regulator which integrates an inductor and a control IC in one tiny package (3.0mm×3.0mm, H=2.0mm). It can operate over a wide input voltage range from 2.6V to 5.5V and integrate main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss. The output voltage can be programmed from 0.7625V to 1.55V through the I2C interface.


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