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TPS63027

ACTIVE

High Efficiency 4.5A Switch Single-Inductor Buck-Boost Converter

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Data sheet

TPS63027

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 2.3 Vout (max) (V) 5.5 Vout (min) (V) 1 Switch current limit (typ) (A) 4.5 Features Enable, Light-load efficiency, Output discharge, Synchronous rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000035 Duty cycle (max) (%) 100
Rating Catalog Topology Buck-Boost Vin (max) (V) 5.5 Vin (min) (V) 2.3 Vout (max) (V) 5.5 Vout (min) (V) 1 Switch current limit (typ) (A) 4.5 Features Enable, Light-load efficiency, Output discharge, Synchronous rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000035 Duty cycle (max) (%) 100
DSBGA (YFF) 25 4.84 mm² (0 mm × 0 mm)
  • 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
  • 1.0V to 5.5V Output Voltage Range
  • 2 A Continuous Output Current : VIN≥ 2.5 V, VOUT= 3.5 V
  • Efficiency up to 96%
  • 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 2.1 mm × 2.1 mm, 25-pin WCSP
  • 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
  • 1.0V to 5.5V Output Voltage Range
  • 2 A Continuous Output Current : VIN≥ 2.5 V, VOUT= 3.5 V
  • Efficiency up to 96%
  • 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 2.1 mm × 2.1 mm, 25-pin WCSP

The TPS63027 is a 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 4.5 A. The TPS63027 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 25-pin WCSP package measuring 2.1 mm × 2.1 mm.

The TPS63027 is a 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 4.5 A. The TPS63027 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 25-pin WCSP package measuring 2.1 mm × 2.1 mm.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS63027 High Current, High Efficiency Single Inductor Buck-Boost Converter datasheet PDF | HTML May 6, 2016
Application note Different Methods to Drive LEDs Using TPS63XXX Buck-Boost Converters (Rev. D) Aug 4, 2021
Application note A Topical Index of TI Low-Power Buck-Boost Converter Application Notes (Rev. A) PDF | HTML Jun 9, 2021
Application note Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) PDF | HTML Jun 9, 2021
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec 11, 2018
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) Sep 19, 2018
Application note Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) Jul 9, 2018
Application note Low-power TEC driver Nov 18, 2014
Application note Extending the Soft Start Time in the TPS63010 Buck-Boost Converter Dec 5, 2012
Analog design Journal Design considerations for a resistive feedback divider in a DC/DC converter Apr 26, 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep 19, 2011
Analog design Journal IQ: What it is, what it isn’t, and how to use it Jun 17, 2011
Application note Minimizing Ringing at the Switch Node of a Boost Converter Sep 15, 2006
Application note Dynamically Adjustable Output Using the TPS63000 Aug 15, 2006

Design & development

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Evaluation board

TPS63027EVM-870 — TPS63027 Buck-Boost Converter Evaluation Module

The TPS63027EVM-870 is designed to help the user easily evaluate and test the operation and functionality of the TPS63027 Buck-Boost Converter. The EVM operates from 2.3-V to 5.5V-V input voltage. The output voltage is set to 3.3V. Output currents can go up to 4 A. The TPS63027 comes in a small (...)
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TPS63027 Unencrypted PSpice Transient Model Package (Rev. A)

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