TPS63027 High Efficiency 4.5A Switch Single-Inductor Buck-Boost Converter | TI.com

TPS63027
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High Efficiency 4.5A Switch Single-Inductor Buck-Boost Converter

 

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.

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

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WEBENCH® Designer TPS63027

  Min   Max Range
Vin  V 2.3 to 5.5V
Vout  V 1 to 5.5V
Iout  A ≤ 4A
Ambient Temp  °C -40 to 85°C

Parametrics

Compare all products in Buck-boost, inverting & split-rail converters (integrated switch) Email Download to Excel
Part number Order 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
TPS63027 Order now Buck-Boost     2.3     5.5     1     5.5     4.5     100     2500     2500     Enable
Light Load Efficiency
Output Discharge    
0.035     2     Catalog     Converter     -40 to 85     DSBGA | 25    
TPS63020 Order now Buck-Boost     1.8     5.5     1.2     5.5     4     100     2200     2600     Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Power Good
Synchronous Rectification
UVLO Fixed    
0.05     2     Catalog     Converter     -40 to 85     VSON | 14    
TPS630250 Order now Buck-Boost     2.3     5.5     2.3     3.6     4.5     100     2500     2500     Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification
UVLO Fixed    
0.035     2     Catalog     Converter     -40 to 85     DSBGA | 20
VQFN-HR | 14    
TPS63050 Order now Buck-Boost     2.5     5.5     2.5     5.5     1     100     2500     2500     Adjustable Current Limit
Enable
Light Load Efficiency
Load Disconnect
Power Good
Synchronous Rectification
UVLO Fixed    
0.045     0.5     Catalog     Converter     -40 to 85     DSBGA | 12
VQFN-HR | 12    
TPS63070 Order now Buck-Boost     2     16     2.5
5    
9
5    
3.6     100     2100     2800     Dynamic Voltage Scaling
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Output Discharge
Power Good
Synchronous Rectification
UVLO Fixed
Voltage Margining    
0.05     2     Catalog     Converter     -40 to 125     VQFN-HR | 15    
TPS63802 Order now Buck-Boost