The maximum power dissipation of the LTC6085 is dependent on the package and thermal environment. For the HDHC package, the maximum power dissipation is approximately 1.4W at 25°C ambient temperature, with a thermal resistance (θJA) of 70°C/W.
To minimize noise and ensure optimal performance, it is recommended to follow good PCB layout practices, such as separating analog and digital grounds, using a solid ground plane, and keeping sensitive analog signals away from noisy digital signals. Additionally, the datasheet provides specific layout recommendations for the LTC6085.
The recommended input capacitor value and type for the LTC6085 depend on the specific application and input voltage. A general guideline is to use a low-ESR ceramic capacitor with a value of 1-10uF, such as an X5R or X7R type capacitor.
The output voltage ripple of the LTC6085 can be calculated using the equation: ΔVout = (Iout * ESL) / (Cout * fsw), where Iout is the output current, ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency.
The maximum output current capability of the LTC6085 is 1.5A, but this can be limited by the thermal performance of the package and the output voltage. It is recommended to consult the datasheet and thermal calculations to determine the maximum output current capability for a specific application.
LTC6085HDHC#PBF datasheet
by Linear Technology
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