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TPS63027YFFR

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

Manufacturer:

TI
Mfr.Part #:

TPS63027YFFR
Datasheet:

TPS63027YFFR Datasheet (PDF)
Topology:

Buck-Boost
Vin (min) (V):

2.3
Vin (max) (V):

5.5
Vout (max) (V):

5.5
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TPS63027YFFR General 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.

Key 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 : V_IN≥ 2.5 V, V_OUT= 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

Specifications

Topology	Buck-Boost	Vin (min) (V)	2.3
Vin (max) (V)	5.5	Vout (max) (V)	5.5
Vout (min) (V)	1	Duty cycle (max) (%)	100
Features	Enable, Light Load Efficiency, Output discharge, Synchronous Rectification	Switch current limit (typ) (A)	4.5
Switching frequency (min) (kHz)	2500	Switching frequency (max) (kHz)	2500
Iq (typ) (mA)	0.035	Iout (max) (A)	2
Rating	Catalog	Operating temperature range (°C)	-40 to 125
Type	Converter