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2008-12-09 Using the HT77XX step-up DC/DC converter
The HT77XX is a variable frequency voltage-mode step-up DC/DC converter for portable device such as PDAs and digital still cameras. The HT77XX combines a PFM step-up switching regulator, an N-channel power MOSFET, a bandgap reference generator and a voltage detector in a single monolithic device.
2005-04-20 Dc-dc converters mix low operating current, low noise
The HT77xx series of devices are a new range of high-efficiency step up dc-dc converter CMOS device from Holtek that use PFM techniques for their output control, and offer low operating current and low noise characteristics.
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