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DPA-Slide15

In addition to the application information shown here, there are some additional hints. Always place the input capacitor close to the DC/DC converter and ensure that the recommended guidelines for output capacitance is adhered to – both minimum and maximum levels. POLs reduce, or step down the voltage from input to output, so make sure that the input voltage is higher than the output voltage, this delta is specified by the manufacturer. The stencil thickness is also critical because of the solder bumping packages used. As a reminder, SMT POLs are often MSL (Moisture Sensitivity Level) 2 which entails the need to store a partially used reel under controlled conditions. It is recommended that once the end system is built, the operating temperature of the power devices is measured.

PTM Published on: 2013-04-01