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TPS51125RGER

DC/DC Controller, Out-of-Audio, 5.5V to 28V, 2 Outputs, Synchronous Buck, 460kHz, VQFN-24

TEXAS INSTRUMENTS TPS51125RGER
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Manufacturer Part No:
TPS51125RGER
Order Code:
3123745

Product Overview

The TPS51125RGER is a dual-synchronous Buck Controller provides 5 and 3.3V LDOs and requires few external components. The 270kHz 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. The TPS51125 supports high-efficiency, fast-transient response and provides a combined power-good signal. Out-of-audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 to 28V and supports output voltages from 2 to 5.5V.
  • Built-In 1% 2V reference output with or without Out-of-Audio™ mode selectable
  • Light-load and PWM-only operation
  • Internal 1.6ms 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 (non-latch)
  • 4500ppm/°C RDS(on) Current sensing
  • Green product and no Sb/Br

Applications

Power Management, Computers & Computer Peripherals

Product Information

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:
5.5V

:
28V

:
2 Output

:
88%

:
VQFN

:
24Pins

:
460kHz

:
Synchronous Buck (Step Down)

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-40°C

:
85°C

:
-

:
-

:
MSL 2 - 1 year
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