High Efficiency 4.5A Switch Single-Inductor Buck-Boost Converter
Product details
Parameters
Package | Pins | Size
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
- 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
Description
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.
Technical documentation
Design & development
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Description
Features
- Input Voltage Range: 2.3 V to 5.5 V
- Output Voltage Range: 1.0 V to 5.5 V
- Output Current up to 2A in Boost mode and 4 A in Buck mode
- Efficiency up to 95% in Buck or Boost Mode and up to 96% when VIN=VOUT
- 2.5MHz Typical Switching Frequency
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
DSBGA (YFF) | 25 | View options |
Ordering & quality
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