text.skipToContent text.skipToNavigation


Automotive 2V to 6V, 500mA Buck Converter with 1.8V Fixed Output Voltage in 1x1.5mm SON Package

Availability: 11,220


Package | PIN: USON (DRY) | 6
Temp: S (-40 to 105)
Package qty | Carrier: 5,000 | LARGE T&R
Custom reel may be available
Qty Price
1-99 $1.02
100-249 $0.89
250-999 $0.61
1,000+ $0.46


  • Qualified for Automotive Applications
  • Up to 3.8-MHz Switch Frequency
  • Up to 94% Efficiency
  • Output Peak Current up to 500 mA
  • Excellent AC and Transient Load Regulation
  • High PSRR (up to 90 dB)
  • Small External Output-Filter Components 1 µH
    and 4.7 µF
  • VIN range from 2.05 V to 6 V
  • Optimized Power Save Mode For Low Output-
    Ripple Voltage
  • Forced PWM Mode Operation
  • Typical 22-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Small 1 × 1.5 × 0.6-mm3 SON Package
  • 12-mm2 Minimum Solution Size
  • Supports 0.6-mm Maximum Solution Height
  • Soft Start With 100-µs (Typical) Start-Up Time

Texas Instruments  TPS62231TDRYRQ1

The TPS6223x-Q1 device family is a high-frequency, synchronous step-down DC-DC converter ideal for space-optimized automotive and industrial applications. The device supports up to 500-mA output current and allows the use of tiny and low-cost chip inductors and capacitors.

With a wide input-voltage range of 2.05 V to 6 V, the device can be powered by a preregulated voltage rail or Li-Ion batteries with extended voltage range. Two different fixed-output voltage versions are available at 1.5 V and 1.8 V.

The TPS6223x-Q1 series features switch frequency up to 3.8 MHz. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range.

Because of its excellent PSRR and AC load regulation performance, the device is also suitable to replace linear regulators to obtain better power conversion efficiency.

The Power Save Mode in TPS6223x-Q1 reduces the quiescent current consumption down to 22 µA during light load operation. It is optimized to achieve very low output voltage ripple even with small external component and features excellent AC load regulation.

For noise-sensitive applications, the device can be forced to PWM Mode operation over the entire load range by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6223x-Q1 is available in a 1-mm × 1.5-mm2 6-pin SON package.