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 Compare all products in Step-Down (Buck) Converter

Regulated Outputs (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Switching Frequency (Max) (kHz)
Switch Current Limit (Typ) (A)
Iq (Typ) (mA)
Duty Cycle (Max) (%)
Soft Start
Special Features
Control Mode
Preset Vout (V)
Vref Accuracy (Typ) (%)
Operating Temperature Range (C)
Approx. Price (US$)
TPS62290 TPS62291 TPS62293
1     1     1    
2.3     2.3     2.3    
6     6     6    
0.6     3.3     1.8    
6     3.3     1.8    
1     1     1    
Buck     Buck     Buck    
2500     2500     2500    
1.4     1.4     1.4    
0.015     0.015     0.015    
100     100     100    
Fixed     Fixed     Fixed    
Internal     Internal     Internal    
Light Load Efficiency
Synchronous Rectification    
Light Load Efficiency
Synchronous Rectification    
Light Load Efficiency
Synchronous Rectification    
Voltage Mode     Voltage Mode     Voltage Mode    
  3.3     1.8    
1.5     1.5     1.5    
Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85    
6SON     6SON     6SON    
0.80 | 1ku     0.80 | 1ku     0.80 | 1ku    

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    ≤ 1.00A  
  Ambient Temp °C    ≤ 100°C  
Footprint BOM Cost Efficiency
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