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Maxim Integrated Releases Next-Generation SIMO Power Management IC


Breakthrough SIMO technology reduces footprint by half and extends battery life by 20 percent


Designers of compact consumer devices can now slash solution size by half and extend battery life by 20 percent with the MAX77654 single inductor, multiple output (SIMO) power management IC (PMIC) from Maxim.

This next-generation SIMO PMIC delivers 3 outputs with just one inductor at 91 percent efficiency, which is 16 percent greater than traditional 4-chip systems. With significantly reduced solution size, system designers can pack more functionality in their applications such as wearables, hearables and other compact consumer devices when compared to using traditional power solutions.

Click for Larger Image - Maxim Integrated Releases Next-Generation SIMO Power Management IC Size and power constraints are defining next-generation IoT consumer system designs, and engineers are finding it harder to cram all the high-performance demands and capabilities into these tiny form factors, said Kevin Anderson, senior analyst for Power Semiconductors at Omdia. Maxim Integrated's ingenious SIMO PMIC design offers designers flexibility to add new capabilities while also reducing size and improving battery life.

As designers continue their quest to shrink form factors for compact consumer devices, they must also consider extending battery life (or shrinking battery volume), as well as reducing heat dissipation and noise. The MAX77654 SIMO PMIC addresses space-constraint challenges for system designers by replacing 3 buck-boost converters, 3 inductors with a single converter and a single inductor. It also replaces 2 LDOs/load-switches, a battery charger and additional passives, resulting in a 50 percent smaller solution.

The MAX77654 improves end-user experience with 20 percent longer battery life by delivering 91 percent efficiency. With less than 500nA shutdown current and a low supply current of 6µA with 5 regulators operating, designers can add more functions to their ultra-low-power consumer devices. The MAX77654 yields lower heat dissipation and reduces system board temperature by more than 20 degrees Celsius when compared against an alternative single inductor system power solution. Additionally, this SIMO PMIC provides superior output voltage ripple performance of less than 20mVp-p for noise sensitive rails.

Maxim Integrated's breakthrough scalable SIMO PMIC, MAX77654, offers the smallest form factor solution with the highest system efficiency, said Karthi Gopalan, director, Mobile Solutions Business Unit at Maxim Integrated. The MAX77654 SIMO PMIC frees up board real estate to pack value-add modules such as voice commands, payment, GPS receivers, biometrics, gesture control, 3-D recognition and camera.

Features of the MAX77654 Ultra-Low Power PMIC

  • Highly Integrated
    • 3x Output, Single-Inductor Multiple-Output (SIMO) Buck-Boost Regulator, Output Voltage 0.8V to 5.5V
    • 2x 100mA LDO/LSW
    • Smart Power Selector™ Li+/Li-Poly Charger
    • 3x GPIO Resources
    • Analog MUX Output for Power Monitoring
    • Factory Ship Mode (<200nA IQ)
    • Watchdog Timer
  • Low Power
    • 0.3µA Shutdown Current
    • 6µA Operating Current (3 SIMO Channels + 2 LDOs)
  • Charger Optimized for Small Battery Size
    • Programmable Fast-Charge Current from 7.5mA to 300mA
    • Programmable Battery Regulation Voltage from 3.6V to 4.6V
    • Programmable Termination Current from 0.375mA to 45mA
    • JEITA Battery Temperature Monitors Adjust Charge Current and Battery Regulation Voltage for Safe Charging
  • Flexible and Configurable
    • I²C-Compatible Interface and GPIO
    • Factory OTP Options Available
  • Small Size
    • 6.52mm² Wafer-Level Package (WLP)
    • 30-Bump, 0.4mm Pitch, 6x5 Array
    • Small Total Solution Size (29.7mm²)

For more information on the MAX77654 Ultra-Low Power PMIC, visit the Maxim Integrated Website at Maxim Integrated MAX77654 product page


The company's Web site address is www.maximintegrated.com.
[Reprinted with kind permission from Maxim Integrated - Release Date 7th April, 2020]