Buck-boost regulator reduces thermal, brownout issues in mobile devices

FAIRCHILD FAN49103 digitally programmable buck-boost regulator for the power supplies used in smartphones, tablets and other battery-powered mobile devices, combines high power density, small solution size, tight transient regulation and best-in-class ripple performance. Device can reduce thermal issues by providing a system power rail at the lowest possible voltage. Device can also reduce or eliminate the need for heat sinks. http://www.fairchildsemi.com