SY20257NPKC - High Efficiency 5.5V, 6A, 2.4MHz I2C Programmable Buck


  • Input Voltage Range: 2.6V to 5.5V
  • 2.4 MHz Switching Frequency Minimizes the External Components
  • Typical 65µA Quiescent Current
  • Low RDS(ON) for Internal Switches (PFET/NFET): 28mΩ/17mΩ
  • Programmable Output Voltage: 0.6V to 1.3875V in 12.5mV Steps
  • 6A Continuous Output Current Capability.
  • Capable for 0.33µH or 0.25µH Inductor and 22µF Ceramic Capacitor.
  • Hic-cup Mode Protection for Hard Short Condition
  • RoHS Compliant and Halogen Free
  • Compact package: CSP1.56*1.96-20

Typical Application


SY20257N is a high efficiency 2.4MHz synchronous step down DC/DC regulator capable of delivering up to 6A output currents. 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 0.6V to 1.3875V through I2C interface.
SY20257N is in a space saving, low profile CSP1.56*1.96-20 package.


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