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
May 2, 2025
I can safely say that I've never seen a wheeled-legged robot that can handle rugged terrains, muddy wetlands, and debris-strewn ruins like this...

featured paper

How Google and Intel use Calibre DesignEnhancer to reduce IR drop and improve reliability

Sponsored by Siemens Digital Industries Software

Through real-world examples from Intel and Google, we highlight how Calibre’s DesignEnhancer maximizes layout modifications while ensuring DRC compliance.

Click here for more information

featured chalk talk

Advantech Dual Band WiFi
Sponsored by Mouser Electronics and Advantech
In this episode of Chalk Talk, Amelia Dalton and Monica Goode from Advantech investigate the what, where, and how of dual band WiFi. They also explore the benefits that dual band WiFi can bring to a variety of embedded designs and how you can take advantage of Advantech dual band WiFi solutions for your next design.
Jul 31, 2024
84,041 views