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Texas Instruments TPSM8310x Buck-Boost Modules

Texas Instruments TPSM8310x Buck-Boost Modules 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. These devices have a 3A peak current limit (typical) and a 1.6V to 5.5V input voltage range. The TPSM8310x  provide a power supply solution for system pre-regulators and voltage stabilizers.

Depending on the input voltage, the Texas Instruments TPSM8310x automatically operates in boost, buck, or 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.

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 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 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
  • Small solution size
    • MicroSiP™ power module with integrated inductor
    • 2.0mm × 2.6mm × 1.2mm (max) 8-pin µSiP package

Applications

  • Voltage stabilizer (datacom, optical modules, cooling/heating)
  • Point-of-load regulation (wired sensor, port/cable adapter, and dongle)
  • System pre-regulator (smartphone, tablet, terminal, telematics)
  • Fingerprint, camera sensors (electronic smart lock, IP network camera)

Datasheets

Functional Block Diagram

Block Diagram - Texas Instruments TPSM8310x Buck-Boost Modules

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Published: 2023-08-24 | Updated: 2024-12-18