SY21212AABC - High Efficiency 1MHz, 2A Step Up Regulator


  • Wide Input Range: 3-8V Bias Input, 16VOUT Max
  • 1MHz Switching Frequency
  • Minimum ON Time: 100ns Typical
  • Minimum OFF Time: 100ns Typical
  • Low RDS(ON): 130mΩ
  • RoHS Compliant And Halogen Free
  • Accurate Reference: 0.6VREF
  • Compact Package: SOT23-6

Typical Application


The SY21212A is a high efficiency, current-mode control Boost regulator. The device integrates a 130mΩ low RDS(ON) N-channel MOSFET for high efficiency. The fixed 1MHz switching frequency and internal compensation reduce external components size and count. The build-in internal soft start circuitry minimizes the inrush current at start-up.

The SY21212A is available in compact SOT23-6 package.


  • Wled Drivers
  • Networking Cards Powered From Pci Or Pci-Express Slots