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Automotive 2.95V to 6V, 6A, 2MHz Synchronous Buck Converter


Package | PIN: RTE | 16
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $3.87
10-24 $3.48
25-99 $3.25
100-249 $2.91
250-499 $2.72
500-749 $2.37
750-999 $2.05
1000+ $2.01


  • Qualified for Automotive Applications
  • AEC Q-100 Qualified With the Following Results:
    • Device Temperature Grade 1: Ambient
      Operating Temperature Range of –40°C to
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Two 12-mΩ (Typical) MOSFETs for High
    Efficiency at 6-A Loads
  • 300-kHz to 2-MHz Switching Frequency
  • 0.8-V ±1% Voltage Reference Over Temperature
    (–40°C to 150°C)
  • Synchronizes to External Clock
  • Adjustable Slow-Start and Sequencing
  • UV and OV Power-Good Output
  • Thermally-Enhanced 3-mm × 3-mm, 16-pin
    WQFN Package

Texas Instruments  TPS54618QRTERQ1

The TPS54618-Q1 device is a full-featured 6-V, 6-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS54618-Q1 enables small designs by integrating the MOSFETs, implementing current-mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small, 3-mm × 3-mm, thermally-enhanced WQFN package.

The TPS54618-Q1 provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.

Efficiency is maximized through the integrated 12-mΩ MOSFETs and 515-µA typical supply current. Using the enable pin, shutdown supply current is reduced to 5.5-µA by entering a shutdown mode.

Undervoltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output-voltage startup ramp is controlled by the slow-start pin. An open-drain power-good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency foldback and thermal shutdown protect the device during an overcurrent condition.

TPS54618-Q1 is supported in the SwitcherPro software tool at www.ti.com/switcherpro.

For more SWIFT documentation, see the TI website at www.ti.com/swift.