The maximum input voltage that can be applied to the LTC1628IG-SYNC#PBF is 15V, but it's recommended to operate within the specified input voltage range of 3.15V to 5.5V for optimal performance and reliability.
To ensure the LTC1628IG-SYNC#PBF is in sync mode, connect the SYNC pin to a clock signal that is within the specified frequency range (100 kHz to 400 kHz) and amplitude (2.5V to 5.5V). The SYNC pin should be connected to a low-impedance source to ensure proper synchronization.
The PG (Power Good) pin on the LTC1628IG-SYNC#PBF is an open-drain output that indicates when the output voltage is within 10% of the nominal value. It can be used to monitor the output voltage and provide a signal to other components in the system when the output voltage is stable.
The LTC1628IG-SYNC#PBF is rated for operation from -40°C to 125°C, but it's recommended to derate the output current and input voltage as the temperature increases to ensure reliable operation. Consult the datasheet for specific derating guidelines.
To minimize noise and ensure reliable operation, follow good PCB layout practices such as separating analog and digital grounds, using a solid ground plane, and keeping sensitive nodes away from noisy components. Consult the datasheet and application notes for specific layout recommendations.
LTC1628IG-SYNC#PBF datasheet
by Linear Technology
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