editor's blog
Subscribe Now

Power Bank SoCs

I ask a lot of stupid questions because usually they’re not stupid. Occasionally one is.

OK, maybe not outright stupid, but I certainly felt out of the loop. I was talking with Active-Semi about their new power bank management chips. But I tend to run my phones with minimal bells and whistles on. WiFi is typically off; GPS is often off. Bottom line: the charge on my phone can easily last a day, sometimes two.

So I hope I can be forgiven for not knowing in advance what a “power bank” was. I’ve never had a chance to need one. Apparently I’m not typical: Active-Semi’s Mark Cieri noted that it’s not unusual for smartphones to need a new charge after only 4 hours. Who knew… (Apparently everyone but me!)

Active-Semi has announced two new SoCs for managing these critters. As they describe it, the status quo requires separate components: a power path chip, a linear charger, a buck/boost regulator, and a microcontroller to manage it all.

Their solution is a single chip that integrates all of these capabilities together, including management and regulation. One version delivers 1 A; the other 2.1 A. The result: a noticeably (50%) smaller footprint.

Oh, and significantly less power draw: under 10 µA, vs. 45 – 100 µA for conventional circuits. So the manager won’t be siphoning off too much of the energy it’s supposed to be managing.

You can find out more in their announcement.

Leave a Reply

featured blogs
Dec 9, 2019
'Virtuoso Meets Maxwell' is a blog series aimed at exploring the capabilities and potential of Virtuoso® RF Solution and Virtuoso MultiTech. So, how does Virtuoso meets Maxwell? Now, the... [[ Click on the title to access the full blog on the Cadence Community...
Dec 6, 2019
SC19 has come and gone. Anticipation for SC20 in Atlanta is already building. Before we look ahead, what were some highlights from SC19? AI is Everywhere AI is affecting all aspects of life. At SC19, technical presentations showed how AI and HPC are helping researchers cure h...
Dec 6, 2019
Waterproof coat can turn into a heat-trapping sleeping bag at night and into a cross-body bag for carrying around during the day....
Dec 6, 2019
[From the last episode: We looked at the role of interrupts in a processor, and how they help save energy in battery-powered IoT devices.] OK, time to take a breath. We'€™ve covered a wide range of computing concepts; time for a quick review. We started by looking at the ro...