Automotive 2V to 6V, 500mA Buck Converter with 1.5V Fixed Output Voltage in 1x1.5mm SON Package

Automotive 2V to 6V, 500mA Buck Converter with 1.5V Fixed Output Voltage in 1x1.5mm SON Package



Product details


Vin (Min) (V) 2.05 Vin (Max) (V) 6 Vout (Min) (V) 1.5 Vout (Max) (V) 1.5 Iout (Max) (A) 0.5 Iq (Typ) (mA) 0.022 Iq (Typ) (uA) 22 Switching frequency (Min) (kHz) 3000 Switching frequency (Max) (kHz) 3800 Operating temperature range (C) -40 to 105 Rating Automotive Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

USON (DRY) 6 1 mm² 1.5 x 1 open-in-new Find other Buck converters (integrated switch)


  • 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
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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.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 11
Type Title Date
* Datasheet TPS62231x-Q1 3-MHz Ultra-Small Step-Down Converter in 1 × 1.5 SON Package datasheet (Rev. A) Mar. 07, 2016
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application notes Understanding 100% mode in low-power DC/DC converters Jun. 22, 2018
Application notes Achieving a clean startup by using a DC/DC converter with a precise enable-pin t Oct. 24, 2017
Application notes Testing tips for applying external power to supply outputs without an input volt Oct. 24, 2016
Application notes Understanding frequency variation in the DCS-Control(TM) topology Oct. 30, 2015
Application notes Basic Calculation of a Buck Converter's Power Stage (Rev. B) Aug. 17, 2015
Application notes Five steps to a great PCB layout for a step-down converter Jan. 29, 2015
Application notes High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions Jul. 25, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The Texas Instruments TPS622312EVM-574 evaluation module helps designers evaluate the operation and performance of the TPS6223x family of devices. These devices are high-efficiency, ultra-small size, buck converters that switch at up to 3 MHz. This user's guide includes setup instructions, a (...)

  • 2 MHz / 3 MHz Switch Frequency
  • Up to 94% Efficiency
  • Output Peak Current up to 500mA
  • Excellent AC and Transient Load Regulation
  • High PSRR (up to 90dB)
  • VIN range from 2.05V to 6V
  • Optimized Power Save Mode For Low Output Ripple Voltage
  • Forced PWM Mode Operation
  • 100% Duty Cycle for Lowest Dropout

Design tools & simulation

SLIM196A.ZIP (37 KB) - PSpice Model
SLVM204.TSC (353 KB) - TINA-TI Reference Design
SLVM205.ZIP (43 KB) - TINA-TI Spice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
SON (DRY) 6 View options

Ordering & quality

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