The recommended PCB layout for optimal performance is to keep the input and output traces as short as possible, and to use a solid ground plane to reduce noise and EMI. Additionally, it is recommended to place the input and output capacitors close to the IC and to use a low-ESR capacitor for the output filter.
To ensure the stability of the output voltage, it is recommended to use a minimum output capacitance of 10uF with an ESR of less than 1 ohm. Additionally, the output voltage should be decoupled with a 10nF ceramic capacitor to reduce noise and oscillation.
The maximum input voltage that can be applied to the IC is 18V, but it is recommended to operate the IC within the recommended input voltage range of 4.5V to 15V for optimal performance and reliability.
The output voltage ripple can be calculated using the formula: ΔVout = (Iout x Rout) / (f x Cout), where Iout is the output current, Rout is the output resistance, f is the switching frequency, and Cout is the output capacitance.
The thermal derating of the IC is 1.5°C/W, which means that the maximum power dissipation of the IC decreases by 1.5°C for every 1W increase in ambient temperature above 25°C.
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LTC-5336P Overview
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