TPS54360B-Q1 – Automotive, 60V Input, 3.5A, Step-Down DC-DC Converter With Eco-mode

TPS54360B-Q1 – Automotive, 60V Input, 3.5A, Step-Down DC-DC Converter With Eco-mode

Texas Instruments TPS543xx/-Q1 and TPS545xx/-Q1 are 42V input 3.5A and 5A step-down DC-DC converters with an integrated high side MOSFET. TI TPS54360 and TPS54560 are 60V input 3.5A and 5A DC-DC converters with integrated high side MOSFET. TPS54341 / TPS54541 and TPS54361 / TPS54561 devices offer 100kHz to 2.5MHz adjustable switching frequency while TPS543x0 and TPS545x0 devices have 100kHz to 2.5MHz fixed switching frequency. These TI step-down converters survive load dump pulses up to 65V per ISO 7637. All of the parts offer high efficiency at light loads with pulse skipping Eco-mode. The TPS543xx-Q1 & TPS545xx-Q1 devices are AEC-Q100 qualified for automotive applications.

Sample Application


  • Integrated High Side MOSFET
  • High Efficiency at Light Loads with Pulse Skipping Eco-mode
  • 100kHz to 2.5MHz Fixed or Adjustable Switching Frequency
  • Internal Soft Start
  • -40°C to 150°C TJ Operating Range

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Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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Like most everything else these days the TPS54360B-Q1 is unobtanium:

0 stock everywhere:

Mouser, 0 stock 20,000 on order 41 week lead time (Wow!), qty.-1 $5.39, qty.-2,500 (full reel) $3.12 each:

Also, a modern buck converter with an internal series switch (especially one touting an “Eco-Mode”) should never require an external Schottky diode. The diode should be replaced by a second internal switch; much more efficient & saves money.

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