TPS51125 QFN-24


Brand new TPS51125 QFN-24

The TPS51125 is a cost-effective, dual-synchronous buck controller targeted for notebook system power supply solutions. The device provides 5-V and 3.3-V LDOs and requires few external components. The 270-kHz VCLK output can be used to drive an external charge pump, thus generating gate drive voltage for the load switches without reducing the efficiency of the main converter.


TPS51123 RT8205B RT8223P G5608 UP6182

Note: Verify pin 18 if used as VLCK, ENC or NC


  • Wide Input Voltage Range: 5.5 V to 28 V
  • Output Voltage Range: 2 V to 5.5 V 
  • Built-In 100-mA, 5-V and 3.3-V LDO With Switches
  • Built-In 1% 2-V Reference Output 
  • With or Without Out-of-Audio™ Mode Selectable Light-Load and PWM-Only Operation 
  • Internal 1.6-ms Voltage Servo Soft-Start 
  • Adaptive On-Time Control Architecture With Four Selectable Frequency Setting
  • Built-In Output Discharge 
  • Powergood Output 
  • Built-In OVP/UVP/OCP 
  • Thermal Shutdown (Nonlatch) 
  • QFN, 24-Pin (RGE)



TPS 51125

Category: Best Seller, MAINREG, QFN-24

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