1 Features
• 1.6V to 5.5V input voltage range
– Device input voltage > 1.65V for start-up
• 1V to 5.5V output voltage range(adjustable)
• High output current capability, 3A peak switch
current
– 1.5A output current for VIN ≥ 3V, VOUT = 3.3V
– 1.2A output current 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 disconnect
– Forward and backward current limit
• Small solution size
– 2.6mm × 2.0mm × 1.2mm(max) 8-pin μSiP
package

2 Applications
• TWS
• System pre-regulator (smartphone, tablet,
terminal, telematics)
• 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 TPSM83102 and TPSM83103 are constant
frequency peak current mode control buck-boost
converters in samll μSiP module package. It has a
3A peak current limit (typical) and 1.6V to 5.5V input
voltage range, and provide a power supply solution for
system pre-regulators and voltage stabilizers.
Depending on the input voltage, the TPSM83102 and
TPSM83103 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. 8-μA quiescent
current and power save mode power enable the
highest efficiency for light to no-load conditions.
The device offers a very small solution size in μSiP
module package.