1 Features
• 1.6V to 5.5V input voltage range
– Device input voltage > 1.65V for start-up
• 1.2V to 5.5V output voltage range
– 1.0V Vout is supported in PFM mode
• High output current capability, 3A peak switch
current
– 1.5A Iout for VIN ≥ 3V, VOUT = 3.3V
– 1.2A Iout for VIN ≥ 2.7V, VOUT = 3.3V
• Active output discharge (TPSM83101,
TPSM83101L only)
• High efficiency over the entire load range
– 8μA typical quiescent current
– Automatic power save mode and forced PWM
mode
• Peak current buck-boost mode architecture
– Seamless mode transition
– Forward and reverse current operation
– Start-up into prebiased 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
• Small design size
– MicroSiP™ power module with integrated
inductor
– 2.0mm × 2.6mm × 1.2mm(max) 8-pin μSiP
package
• Create a custom design using the TPSM8310xx
device with the WEBENCH® Power Designer

2 Applications
• Voltage stabilizer (datacom, optical modules,
cooling/heating)
• 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)

3 Description
The TPSM83100, TPSM83101, and TPSM83101L
are constant frequency peak current mode control
buck-boost MicroSiP™ power modules optimized for
small design size and high efficiency. The power
modules integrate an inductor to simplify design,
reduce external components, and save PCB area.
The power modules have a 3A peak current limit
(typical) and 1.6V to 5.5V input voltage range. The
TPSM83100 and TPSM83101, TPSM83101L provide
a power supply design for system pre-regulators and
voltage stabilizers.
Depending on the input voltage, the TPSM83100 and
TPSM83101, TPSM83101L 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.