2.25MHz 1A Step-Down Converter in 2x2mm SON Package - TPS62290


2.25MHz 1A Step-Down Converter in 2x2mm SON Package


The TPS6229x device is a higly efficient synchronous step down dc-dc converter optimized for battery powered portable applications. It provides up to 1000-mA output current from a single Li-Ion cell.

With an input voltage range of 2.3 V to 6 V, the device supports batteries with extended voltage range and are ideal to power portable applications like mobile phones and other portable equipment.

The TPS6229x operates at 2.25-MHx fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range.

The Power Save Mode is optimized for low output voltage ripple. For low noise applications, the device can be forced into fixed fequency PSM mode by pulling the MODE pin high. In the shutdown mode the current consumption is reduced to less than a µA. The TPS6229x allows the use of small inductors and capacitors to acieve a small solution size.

The TPS6229x is available in a 2-mm x 2-mm 6-pin SON package.


  • High Efficiency Step Down Converter
  • Output Current up to 1000 mA
  • VIN Range From 2.3 V to 6 V
  • 2.25 MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • Output Voltage Accuracy in PWM mode ±1.5%
  • Fixed Output Voltage Options
  • Typ. 15-µA Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • Voltage Positioning at Light Loads
  • Available in a 2 × 2 × 0,8 mm SON Package
    • Cell Phones, Smart-phones
    • WLAN
    • PDAs, Pocket PCs
    • Low Power DSP Supply
    • Portable Media Players
    • POL

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Parametrics Evaluate all products in Step-Down (Buck) Converter

  TPS62290 Compare
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Regulated Outputs (#) 1
Vin (Min) (V) 2.3
Vin (Max) (V) 6
Vout (Min) (V) 0.6
Vout (Max) (V) 6
Iout (Max) (A) 1
Iout2 (Max) (A) -
Vout2 (Min) (V) -
Vout2 (Max) (V) -
Topology Buck
  • Boost
  • Buck
  • Buck-Boost
  • Inverting Buck-Boost
Switching Frequency (Max) (kHz) 2500
Switch Current Limit (Typ) (A) 1.4
Iq (Typ) (mA) 0.015
Duty Cycle (Max) (%) 100
Soft Start Fixed
  • Adjustable
  • Fixed
  • None
Compensation Internal
  • External
  • Internal
  • Not Needed
Special Features Enable
Light Load Efficiency
Synchronous Rectification
  • Adjustable Current Limit
  • Adjustable UVLO
  • Dynamic Voltage Scaling
  • Enable
  • Frequency Synchronization
  • Light Load Efficiency
  • Phase Interleaving
  • Power Good
  • Synchronous Rectification
  • Tracking
Control Mode Voltage Mode
  • COT with emulated ripple
  • Constant on-time (COT)
  • Current Mode
  • D-CAP
  • D-CAP+
  • D-CAP2
  • D-CAP3
  • Voltage Mode
Preset Vout (V) -
Vref Accuracy (Typ) (%) 1.5
Rating Catalog
  • Automotive
  • Catalog
  • HiRel Enhanced Product
  • High Temp
  • Military
  • Space
Operating Temperature Range (C) -40 to 85 °C to °C
Approx. Price (US$) 0.80 | 1ku
Package Group SON
  • CFP
  • DDPAK/TO-263
  • MSOP-PowerPAD
  • PDIP
  • QFN
  • SO PowerPAD
  • SOIC
  • SON
  • SOT
  • SOT-23
  • TO-220
  • TO-263
  • USON
  • VQFN
  • VSON
  • WQFN
  • WSON
  Sample & Buy Reset Update

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Other qualified versions of TPS62290

Version Part Number Definition
Automotive TPS62290-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects
    Min   Max   Range  
  Vin V    2.70 – 6.00V  
  Vout V    0.60 – 6.00V  
  Iout A    ≤ 1A  
  Ambient Temp °C    -40 – 85°C  
Footprint BOM Cost Efficiency
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