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High Efficiency 1.5A Single Inductor Buck-Boost Converter

Availability: 2,880


Package | PIN: DSBGA (YFF) | 20
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $2.12
10-24 $1.91
25-99 $1.78
100-249 $1.56
250-499 $1.46
500-749 $1.24
750-999 $1.05
1000+ $1.00


  • Real Buck or Boost operation with automatic and seamless transition between Buck and Boost operation
  • 2.3V to 5.5V input voltage range
  • 1.5A Continuous Output Current : VIN≥ 2.5V, VOUT= 3.3V
  • 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
  • 35µA 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 x 2.086mm, 20-pin WCSP

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Texas Instruments  TPS63024YFFT

The TPS63024 are high efficiency, low quiescent current buck-boost converters suitablefor application where the input voltage is higher or lower than the output. Output currents can goas high as 1.5A in boost mode and as high as 3A in buck mode. The maximum average current in theswitches is limited to a typical value of 3A. The TPS63024 regulates the output voltage over thecomplete input voltage range by automatically switching between buck or boost mode depending on theinput voltage ensuring a seamless transition between modes. The buck-boost converter is based on afixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtainhighest efficiency. At low load currents, the converter enters Power Save Mode to maintain highefficiency over the complete load current range. There is a PFM/PWM pin that allows the user tochoose between automatic PFM/PWM mode operation and forced PWM operation. During PWM mode afixed-frequency of typically 2.5MHz is used. The output voltage is programmable using an externalresistor divider, or is fixed internally on the chip. The converter can be disabled to minimizebattery drain. During shutdown, the load is disconnected from the battery. The device is packagedin a 20-pin WCSP package measuring 1.766 mm x 2.086mm.