Maxim Integrated MAX77654 power management IC

As designers continue 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 single inductor, multiple output (SIMO) power management IC (PMIC) from Maxim Integrated Products addresses space-constraint challenges for system designers by replacing three buck-boost converters and three inductors with a single converter and a single inductor. It also replaces two LDOs/load-switches, a battery charger and additional passives, which is said to result in a 50% smaller solution.

The product is designed to improve end-user experience with 20% longer battery life by delivering 91% efficiency. With less than 500 nA shutdown current and a low supply current of 6 µA with five regulators operating, designers can add more functions to their ultralow-power consumer devices. It is said to yield lower heat dissipation and reduces system board temperature by more than 20°C when compared against an alternative single inductor system power solution. Additionally, the SIMO PMIC provides output voltage ripple performance of less than 20 mVp-p for noise-sensitive rails.

With 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. The product frees up board real estate to pack value-add modules such as voice commands, payment, GPS receivers, biometrics, gesture control, 3D recognition and camera.