TPS51225C 51225 QFN-20


Brand new TPS51225/C

The TPS51225/B/C is a cost-effective, dual-synchronous buck controller targeted for notebook system-power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components.

The 260-kHz VCLK output can be used to drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter efficiency.


TPS51275 51275


  • Input Voltage Range: 5.5 V to 24 V 
  • Output Voltages: 5 V and 3.3 V (Adjustable Range ±10%)
  • Built-in, 100-mA, 5-V and 3.3-V LDOs 
  • ±1% Reference Accuracy 
  • Adaptive On-time D-CAP™ Mode Control 
  • OOA Light Load Operation (TPS51225B) 
  • Internal 0.8-ms Voltage Servo Soft-Start 
  • Built-in Output Discharge Function 
  • Separate Enable Input for Switchers 
  • Dedicated OC Setting Terminals
  • Power Good Indicator
  • OVP/UVP/OCP Protection
  • Non-latch UVLO/OTP Protection
  • 20-Pin, 3 mm × 3 mm, QFN (RUK)


    Category: Best Seller, MAINREG, QFN-20

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