The recommended layout and placement for the TPS3828-50DBVT involves placing the device close to the power source, using a solid ground plane, and keeping the input and output capacitors close to the device. A 4-layer PCB with a solid ground plane is recommended. Refer to the TI application note 'TPS3828 Layout and Placement Guidelines' for more information.
The choice of input and output capacitors for the TPS3828-50DBVT depends on the specific application requirements. A general guideline is to use low-ESR capacitors with a minimum capacitance of 10uF for the input and output. X5R or X7R ceramic capacitors are recommended. The capacitor selection should also consider the voltage rating, temperature range, and ripple current requirements.
The TPS3828-50DBVT can handle a maximum input voltage of 6.5V. Exceeding this voltage may damage the device. It's recommended to add input voltage protection, such as a voltage regulator or a TVS diode, to prevent overvoltage conditions.
The TPS3828-50DBVT has a built-in power-good signal (PG) that can be used to indicate when the output voltage is within regulation. The PG signal is an open-drain output that requires an external pull-up resistor. The PG signal can be used to reset a microcontroller or to enable other power rails.
The TPS3828-50DBVT has a thermal derating of 1.5°C/W. This means that the device's power dissipation should be reduced by 1.5°C/W above the maximum operating temperature of 125°C. The thermal derating should be considered when designing the thermal management for the device.
TPS3828-50DBVT datasheet
by Texas Instruments
