TPS54160 2.5 MHz DC/DC Converters

By Texas Instruments 123

TPS54160 2.5 MHz DC/DC Converters

TI's TPS54160 device is a 60 V, 1.5 A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple, pulse-skip mode reduces the no-load, regulated output-supply current to 116 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA.

Under-voltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 94% to 107% of its nominal voltage.

A wide switching-frequency range allows efficiency and external component size to be optimized. Frequency fold-back and thermal shutdown protects the part during an overload condition.

  • 3.5 V to 60 V input voltage range
  • 200 mΩ high-side MOSFET
  • High efficiency at light loads with a pulse-skipping Eco-mode™
  • 116 µA operating quiescent current
  • 1.3 µA shutdown current
  • 100 kHz to 2.5 MHz switching frequency
  • Synchronizes to external clock
  • Adjustable slow start/sequencing
  • UV and OV power good output
  • Adjustable UVLO voltage and hysteresis
  • 0.8 V internal-voltage reference
  • 10-pin MSOP and 10-pin 3 × 3 mm SON with PowerPAD™ packages
  • 12 V, 24 V, and 48 V industrial and commercial low-power systems
  • Aftermarket auto accessories: video, GPS, entertainment