1 Features
• 1.6-V to 5.5-V input voltage range
– Device input voltage > 1.65 V for start-up
• 1.2-V to 5.5-V output voltage range
– 1.0-V Vout is supported in PFM mode
• High output current capability, 3-A peak switch
current
– 1.5-A Iout for VIN ≥ 3 V, VOUT = 3.3 V
– 1.2-A Iout for VIN ≥ 2.7 V, VOUT = 3.3 V
• Active output discharge (TPSM83101 only)
• High efficiency over the entire load range
– 8-μA 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 pre-biased outputs
– Fixed-frequency operation with 2-MHz
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 solution size
– MicroSiP™ power module with integrated
inductor
– 2.0-mm × 2.6-mm × 1.2-mm(max) 8-pin μSiP
package

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 and TPSM83101 are constant
frequency peak current mode control buck-boost
MicroSiP™ power modules optimized for small
solution size and high efficiency. The power modules
integrate an inductor to simplify design, reduce
external components and save PCB area. They
have a 3-A peak current limit (typical) and 1.6-V
to 5.5-V input voltage range. The TPSM83100 and
TPSM83101 provide a power supply solution for
system pre-regulators and voltage stabilizers.
Depending on the input voltage, the TPSM83100 and
TPSM83101 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 enable the highest
efficiency for light to no-load conditions.