Fairchild Semiconductor’s Fixed Output Step-Down Switching Voltage Regulator Delivers Excellent Transient Response, Low Qui...
September 27 2010 - 11:01AM
Business Wire
In portable devices, especially smartphones, data cards and
tablets, designers often need to accommodate more functionality
than the PMIC can handle, such as additional I/O rails or
processors. These rails and/or processors require power from a
standalone device in order to function. Fairchild Semiconductor
(NYSE: FCS) developed the FAN5358, a 2MHz, 500mA, synchronous Buck
regulator to meet this design challenge.
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.
Price: US $0.39 in 1,000 quantity pieces
Availability: Samples available now
Delivery: 12 weeks ARO
Contact Information:
To contact Fairchild Semiconductor about this product, please go
to: http://www.fairchildsemi.com/cf/sales_contacts/.
For information on other products, design tools and sales
contacts, please visit: http://www.fairchildsemi.com.
Note to Editor: For a datasheet in PDF format, please go
to:
http://www.fairchildsemi.com/ds/FA/FAN5358.pdf
About Fairchild Semiconductor:
Fairchild Semiconductor (NYSE: FCS) – global presence, local
support, smart ideas. Fairchild delivers energy-efficient,
easy-to-use and value-added semiconductor solutions for power and
mobile designs. We help our customers differentiate their products
and solve difficult technical challenges with our expertise in
power and signal path products. Please contact us on the web at
www.fairchildsemi.com.
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