Other Parts Discussed in Thread: PEET-GUI
Hi Team,
Do we have Power dissipation spec of LP87702-Q1?
Roy
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Hi Team,
Do we have Power dissipation spec of LP87702-Q1?
Roy
Hi Roy,
You can use PMIC Efficiency Estimator Tool (PEET-GUI) to see the efficiency. Simply select LP87702-Q1 and set the buck and boost settings accordingly. The data is based on real measurements in room temperature.
https://dev.ti.com/gallery/view/PMIC/PMIC-Efficiency-Estimator-Tool/ver/0.9.0/
Best regards,
Samuli Piispanen
Hi Samuli,
We would like to know Pout(max) of each rail that could suffer. Do we have related spec?
Roy
Hi Roy,
Bucks have maximum output voltage of 3.3 V and boost's maximum output voltage is 5.2 V. Peak current limits are configurable for each DCDC converter separately but for DC current the maximums are 3.5 A for bucks and 600 mA for boost.
Thermal shutdown occurs at 150 °C which limits the maximum possible output power depending on operating conditions e.g. ambient temperature, used switching frequency etc.
Best regards,
Samuli Piispanen
Hi Roy,
Sorry for the delayed response.
Spread spectrum frequency varies from 0.85xfsw to fsw where fsw is the switching frequency. Switching frequency also has 10% tolerance itself.
Best regards,
Samuli Piispanen