Small, Simple DC-DC Converters Target Point-Of-Load Schemes Suited for powering chip sets in point-of-load dc-dc architectures, the MIC2198 and MIC2199 converters offer outputs down to 0.8 V with current capabilities of up to 20 A. Both operate from an input range of 4.5 to 32 V. The MIC2199 operates at 300 kHz for higher efficiency in high-input-voltage systems. Also available is a line of complementary buck and boost converters. The MIC2198 and MIC2199 cost $1.99 each in lots of 1000.
Micrel Semiconductor www.micrel.com
150-W Switching Supply Sports Passive Power Factor Correction The PAS150 is the first in a series of passive-PFC-based switch-mode supplies for 1U-height, single-output applications. It provides a universal 115/230-V ac input selection and a single output of 150 W continuous power. Users may select one of several factory-set output voltages: 3.3, 5, 12, 24, or 48 V. Pricing is under $40 each in OEM volumes.
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