The planning and manufacturing of phones that are getting smaller and smaller and have an increasing number of features is a great challenge for manufacturers, as due to the shrinking of available space it's almost impossible to increase the capacity of batteries so the use solutions with a high energy efficiency is also important besides the size. The DC-DC converter announced by Texas Instruments has a frequency of 6 MHz and a direct potential of 500 mAh and thanks to its size of 13 square millimeters and height of 0.6 millimeters it is very easy to embed even in the slimmest cell phones, where the GPS, WLAN, Bluetooth and other modules require a very precise supply voltage. The TPS62601converter can produce a voltage of 2.3, 5.5 and 1.8 volts with a precision of 1.5% and an efficiency of 89 percent. In order to protect the batteries as much as possible the tiny chip can automatically switch to power saving mode if there is no load and in an inactive state its power demand can be decreased to even 1 microamper. The TPS62601 converter is already available on the market at a unit price of $1.45 USD if one thousand pieces are ordered. Further details are available on the www.ti.com/tps62601-pr site.
Translated by Szaszati
