The FAN5358 is a step-down switching voltage regulator that delivers a fixed output from an input voltage supply of 2.7V to 5.5V. Using a proprietary architecture with synchronous rectification, the device is capable of delivering 500mA and maintaining a very high efficiency of over 80 percent at load currents as low as 1mA.
At moderate and light loads, the FAN5358 uses pulse frequency modulation to operate the device in power-save mode, consuming low quiescent current (25µA typical). Even with such a low quiescent current, the device provides excellent transient response during large load swings. Additionally, in shutdown mode the supply current drops below 1µA, reducing power consumption.
The FAN5358 is available in a cost-effective 6-lead SC70 package making it easy to handle, simplifying the manufacturing processes. The device is ideal for applications in cell phones, smartphones, 3G/4G data cards, as well as tablets, ultra-mobile PCs and Netbooks.
Fairchild Semiconductor enables engineers to drive innovation in their designs by offering smaller size and increased performance through advanced silicon and package options. The FAN5358 is part of a broad portfolio of devices designed to address the needs of mobile power, including core power, peripheral power, battery charging, RFPA power and lighting solutions.