Consumer gear, like Bluetooth headphones, activity monitors, smart garments, and smartwatches, can increase their battery life and efficiency thanks to the MAX77650/651 power management ICs (PMICs), developed by Maxim Integrated Products.
Many PMICs for these small, lithium-ion battery-operated devices require additional components, such as boost, buck, and low-dropout (LDO) regulators; a charger; or current regulators for LED indicators. The MAX77650/651 integrates all these functions into one complete power solution that measures just 19.2 mm2.
The MAX77650 and MAX77651 feature single-inductor, multiple-output (SIMO) buck-boost regulators that provide three independently programmable power rails from one inductor, a 150-mA LDO, and three current sink drivers. The MAX77650 operates at up to 3.3 V and the MAX77651 operates at up to 5 V. Both parts include an analog multiplexer (MUX) output for safe battery monitoring.
Both parts are available from stock and sell for $1.99 in lots of 1000. Eval kits for both are also available for $193.63.eletter-07-26-2017 eletter-07-27-2017
About the Author
Richard Nass is the Executive Vice-President of OpenSystems Media. His key responsibilities include setting the direction for all aspects of OpenSystems Media’s Embedded and IoT product portfolios, including web sites, e-newsletters, print and digital magazines, and various other digital and print activities. He was instrumental in developing the company's on-line educational portal, Embedded University. Previously, Nass was the Brand Director for UBM’s award-winning Design News property. Prior to that, he led the content team for UBM Canon’s Medical Devices Group, as well all custom properties and events in the U.S., Europe, and Asia. Nass has been in the engineering OEM industry for more than 25 years. In prior stints, he led the Content Team at EE Times, handling the Embedded and Custom groups and the TechOnline DesignLine network of design engineering web sites. Nass holds a BSEE degree from the New Jersey Institute of Technology.Follow on Twitter More Content by Rich Nass