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22V/40V-input step-down power modules rated for 6A & 95% efficiency

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By Field Editor

The XR79103 and XR79106 operate from a 4.5V to 22V input supply, delivering a regulated output adjustable between 0.6V to 5.5V. With 40V maximum input voltage, the XR79203 and XR79206 add the ability to convert from loosely regulated 24 VDC, rectified 18 VAC and 24 VAC sources. The output voltage can be set from 0.6V to 13.2V. Using Exar’s emulated current mode constant on-time (COT) control, these power modules have the fast transient response of conventional COT control loops, while providing excellent line and load regulation performance. These modules include supervisory and protection features for proper sequencing, safe operation under abnormal operating conditions and light load operation.

 

The XR79103 (6 x 6 x 4 mm), XR79106 (8 x 8 x 4 mm), XR79203 (8 x 8 x 4 mm) and XR79206 (10 x 10 x 4 mm) start at $4.25, $5.40, $8.50 and $9.95 (1000), respectively.

 

Exar; www.exar.com

 

 


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