Industry’s Smallest 4A Switch Single-Inductor Buck-Boost Converter - TPS630250

TPS630250 (ACTIVE)

Industry’s Smallest 4A Switch Single-Inductor Buck-Boost Converter

Description

The TPS63025x are high efficiency, low quiescent current buck-boost converters suitable for application where the input voltage is higher or lower than the output. Output currents can go as high as 2 A in boost mode and as high as 4 A in buck mode. The maximum average current in the switches is limited to a typical value of 4 A. The TPS63025x regulates the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage ensuring a seamless transition between modes. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range. There is a PFM/PWM pin that allows the user to choose between automatic PFM/PWM mode operation and forced PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 20-pin WCSP package measuring 1.766 mm × 2.086mm and 14-pin HotRod package measuring 2.5 mm × 3mm.

Features

  • Real Buck or Boost Operation with Automatic and
    Seamless Transition Between Buck and Boost
    Operation
  • 2.3 V to 5.5 V input voltage range
  • 2 A Continuous Output Current : VIN≥ 2.5 V,
    VOUT= 3.3 V
  • Adjustable and Fixed Output Voltage
  • Efficiency up to 95% in Buck or Boost Mode and
    up to 97% when VIN=VOUT
  • 2.5MHz Typical Switching Frequency
  • 35-µA Operating Quiescent Current
  • Integrated Soft Start
  • Power Save Mode
  • True Shutdown Function
  • Output Capacitor Discharge Function
  • Over-Temperature Protection and Over-Current
    Protection
  • Wide Capacitance Selection
  • Small 1.766 mm × 2.086 mm, 20-pin WCSP and
    2.5 mm × 3 mm, 14-pin Hot Rod

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Parametrics Compare all products in Buck/Boost Converter

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Topology
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Control Mode
Soft Start
Regulated Outputs (#)
Special Features
Rating
Operating Temperature Range (C)
Market Segment
Pin/Package
Approx. Price (US$)
TPS630250 TPS63024 TPS630241 TPS630242 TPS630251 TPS630252
2.3     2.3     2.3     2.3     2.3     2.3    
5.5     5.5     5.5     5.5     5.5     5.5    
2.3     2.5     2.9     3.3     2.9     3.3    
3.6     3.6     2.9     3.3     2.9     3.3    
Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost    
2500     2500     2500     2500     2500     2500    
2500     2500     2500     2500     2500     2500    
0.035     0.035     0.035     0.035     0.035     0.035    
Current Mode     Current Mode     Current Mode     Current Mode     Current Mode     Current Mode    
  Fixed     Fixed     Fixed        
1     1     1     1     1     1    
Enable
Light Load Efficiency
Load Disconnect    
Enable
Load Disconnect
Output Discharge
Synchronous Rectification    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification    
Enable
Light Load Efficiency
Load Disconnect    
Enable
Light Load Efficiency
Load Disconnect    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
Consumer & Portable Electronics     Consumer & Portable Electronics
Industrial    
Consumer & Portable Electronics
Industrial    
Consumer & Portable Electronics
Industrial    
Consumer & Portable Electronics     Consumer & Portable Electronics    
14VQFN
20DSBGA    
20DSBGA     20DSBGA     20DSBGA     20DSBGA     20DSBGA    
1.40 | 1ku     1.20 | 1ku     1.20 | 1ku     1.20 | 1ku     1.40 | 1ku     1.40 | 1ku    
New! Interactive Design
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WEBENCH® TPS630250
    Min   Max   Range  
  Vin V 2.3 to 5.5V  
  Vout V 2.3 to 3.6V  
  Iout A ≤ 4A  
  Ambient Temp °C -40 to 125°C  
Footprint BOM Cost Efficiency
 
   
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