LTC3566 - IC 2.5 A BATTERY CHARGE CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PQCC24, 4 X 4 MM, LEAD FREE, PLASTIC, MO-220WGGD, QFN-24, Switching Regulator or Controller
The recommended PCB layout for the LTC3566EUF-2#PBF involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces between the IC and the capacitors. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane to reduce noise and EMI.
The selection of input and output capacitors for the LTC3566EUF-2#PBF depends on the specific application requirements. In general, it's recommended to use low-ESR capacitors with a high ripple current rating. The input capacitor should be at least 10uF, and the output capacitor should be at least 22uF. The capacitor values can be adjusted based on the output voltage and current requirements.
The maximum ambient temperature range for the LTC3566EUF-2#PBF is -40°C to 125°C. However, the device can operate up to 150°C with a reduced lifetime. It's recommended to derate the device's performance at high temperatures to ensure reliable operation.
To ensure the LTC3566EUF-2#PBF is stable and doesn't oscillate, it's recommended to follow the recommended PCB layout, use the correct input and output capacitors, and ensure that the input voltage is within the specified range. Additionally, the device's feedback loop should be properly compensated, and the output voltage should be monitored to ensure it's within the specified range.
The typical efficiency of the LTC3566EUF-2#PBF is around 95% at full load, depending on the input and output voltage, and the operating frequency. The efficiency can be improved by optimizing the input and output capacitors, and the PCB layout.
LTC3566EUF-2#PBF datasheet
by Linear Technology
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