TPS630250 Industry’s Smallest 4A Switch Single-Inductor Buck-Boost Converter | TI.com

TPS630250 (ACTIVE)

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

 

Recommended alternative parts

  • TPS63024  -  Looking for a pin-compatible device with lower output current (3A-Switch)? Try the TPS63024

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, inverting & split-rail converters (integrated switch)

 
Topology
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Duty cycle (Max) (%)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Features
Iq (Typ) (mA)
Iout (Max) (A)
Rating
Type
Operating temperature range (C)
Package Group
TPS630250 TPS63000 TPS63010 TPS63024 TPS630241 TPS630242 TPS630251 TPS630252 TPS63027 TPS63030 TPS63050 TPS63070 TPS63802
Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost
Buck/Boost    
2.3     1.8     2     2.3     2.3     2.3     2.3     2.3     2.3     1.8     2.5     2     1.3    
5.5     5.5     5.5     5.5     5.5     5.5     5.5     5.5     5.5     5.5     5.5     16     5.5    
2.3     1.2     1.2     2.5     2.9     3.3     2.9     3.3     1     1.2     2.5     2.5     1.8    
3.6     5.5     5.5     3.6     2.9     3.3     2.9     3.3     5.5     5.5     5.5     9     5    
4.5     1.8     2.2     3     3     3     4.5     4.5     4.5     1     1     3.6     4.5    
100     100     100     100     100     100     100     100     100     100     100     100     100    
2500     1250     2200     2500     2500     2500     2500     2500     2500     2200     2500     2100     2500    
2500     1500     2400     2500     2500     2500     2500     2500     2500     2600     2500     2800     2500    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification
UVLO Fixed    
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Synchronous Rectification
UVLO Fixed    
Dynamic Voltage Scaling
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Output Discharge