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Automotive 2.75-V to 6-V, 3-A step-down converter with fixed Fsw and SYNC in 2x3mm wettable-flanks

Availability: 4,922


Package | PIN: VQFN-HR (RWY) | 9
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $2.37
10-24 $2.13
25-99 $1.98
100-249 $1.72
250-499 $1.59
500-749 $1.33
750-999 $1.09
1,000+ $1.00


  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1:
      –40°C to +125°CTA
  • Input voltage range: 2.75 V to 6 V
  • Family of 1 A, 2 A, 3 A and 4 A
  • Quiescent current 15-µA typical
  • Output voltage from 0.6 V to 5.5 V
  • Output voltage accuracy ±1% (PWM operation)
  • Adjustable soft-start
  • Forced PWM or PWM and PFM operation
  • Adjustable switching frequency of
    1.8 MHz to 4 MHz
  • Precise ENABLE input allows
    • User-defined undervoltage lockout
    • Exactsequencing
  • 100% duty cycle mode
  • Active output discharge
  • Spread spectrum clocking - optional
  • Fold-back overcurrent protection - optional
  • Power good output with window comparator
  • Package with wettable flanks

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Texas Instruments  TPS62813QWRWYRQ1

The TPS6281x-Q1 is family of pin-to-pin 1-A, 2-A, 3-A and 4-A synchronous step-downDC/DC converters. All devices offer high efficiency and ease of use. The TPS6281x-Q1 family isbased on a peak current mode control topology. TPS6281x-Q1 is designed for automotive applicationssuch as Infotainment and advanced driver assistance systems. Low resistive switches allow up to 4-Acontinuous output current at high ambient temperature. The switching frequency is externallyadjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the samefrequency range. In PWM/PFM mode, the TPS6281x-Q1 automatically enter Power Save Mode at lightloads to maintain high efficiency across the whole load range. The TPS6281x-Q1 provide 1% outputvoltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy.The SS/TR pin allows setting the start-up time or forming tracking of the output voltage to anexternal source. This allows external sequencing of different supply rails and limiting the inrushcurrent during start-up.

The TPS6281x-Q1 is available in a 3-mm x 2-mm VQFN package with wettable flanks.