1 Features

• 1.6V to 5.5V input voltage range

– Device input voltage > 1.65V for start-up

• 1.0V to 5.5V output voltage range(adjustable)

• High output current capability, 3A peak switch

current

– 2A IOUT for VIN ≥ 3V, VOUT = 3.3V

– 1.5A IOUT for VIN ≥ 2.7V, VOUT = 3.3V

• High efficiency over the entire load range

– 8μA typical quiescent current

– Automatic power save mode and forced PWM

mode configurable

• Peak current buck-boost mode architecture

– Seamless mode transition

– Forward and reverse current operation

– Start-up into pre-biased outputs

– Fixed-frequency operation with 2MHz switching

• Safety and robust operation features

– Overcurrent protection and short-circuit

protection

– Integrated soft start with active ramp adoption

– Overtemperature protection and overvoltage

protection

– True shutdown function with load disconnection

– Forward and backward current limit

• Support 1.2V logic I/O

• Default setting of internal EN

– TPS631012A and TPS631012XA(X=1,2,3):

CONVERTER_EN = 0

– TPS631013A: CONVERTER_EN = 1

• Small solution size

– Small 1μH inductor

– 1.806mm × 0.908mm in WCSP

2 Applications

• System pre-regulator (smartphone, tablet,

terminal, TWS)

• Point-of-load regulation (wired sensor, port/cable

adapter, and dongle)

• Fingerprint, camera sensors (electronic smart lock,

IP network camera)

• Voltage stabilizer (datacom, optical modules,

cooling/heating)

3 Description

The TPS631012A and TPS631013A are constant

frequency peak current mode control buck-boost

converters in small wafer chip scale package. They

have a 3A peak current limit (typical) and 1.6V to

5.5V input voltage range, and provide a power supply

application for system pre-regulators and voltage

stabilizers.

Depending on the input voltage, the TPS631012A and

TPS631013A automatically operate in boost, buck, or

in 3-cycle buck-boost mode when the input voltage

is approximately equal to the output voltage. The

transitions between modes happen at a defined duty

cycle and avoid unwanted toggling within the modes

to reduce output voltage ripple. 8μA quiescent current

and power save mode enable the highest efficiency

for light to no-load conditions.

The devices offer a small solution size in WCSP.