An envelope tracker chip designed by Qualcomm helps with the power requirements of the Long-Term Evolution radio in the new Galaxy Note 3 from Samsung Electronics, Kevin Fitchard writes. "What does that mean for a device like the Note? Well, the biggest power suck from a smartphone is always going to be a backlit display, and with the Note’s plus-sized screen that’s a significant drain. But unlike the screen, the phone’s LTE or 3G radio is always on and always communicating with the network," he writes.
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