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In the table here, highlighted are the 3 devices in red that correlate to Intel white cover specifications. The other devices are just different number of outputs. As of February 2017, the Si53108 and Si53112 have been fully approved by Intel for the DB800ZL and DB1200ZL specifications. These devices above use the Push-Pull technology, and offer a huge power savings over constant current mode. Nearly all customers are using IDT’s constant current devices, so Skyworks Solutions wants to promote the huge amount of power savings that the devices have to offer. As an example, the Si53119 can save nearly 1 W of power consumption. The last device in the table is a constant-current device. The designer has just highlighted the disadvantages of constant current mode, so why offer this device? Well, it turns out this is the most widely used device in servers/storage, primarily because that is the one Intel uses on their reference designs. So offering the 19-output constant current mode device allows Skyworks Solutions to get into the market quickly as a second source alternative, while at the same time promoting the benefits of a push-pull version for the next design cycle. Intel has fully qualified the Si53019 as a source for DB1900Z. Skyworks Solutions have datasheets, ibis models, schematic symbols, app notes, and evb’s available on the website.
