The minimum input voltage required for the LP38853T-ADJ/NOPB to operate is 2.5V, but it's recommended to use a minimum of 3V to ensure proper operation and to account for any voltage drops in the system.
The output voltage of the LP38853T-ADJ/NOPB can be adjusted by connecting a resistor divider network between the output pin and the adjust pin. The ratio of the resistors determines the output voltage, which can be calculated using the formula: Vout = 1.22V x (1 + R1/R2).
The maximum output current of the LP38853T-ADJ/NOPB is 1.5A, but it's recommended to derate the output current based on the ambient temperature and the input voltage to ensure reliable operation.
To ensure the LP38853T-ADJ/NOPB is stable and doesn't oscillate, it's recommended to use a minimum output capacitance of 10uF and to place the capacitor close to the output pin. Additionally, the input capacitor should be placed close to the input pin and should have a value of at least 1uF.
The LP38853T-ADJ/NOPB is rated for operation up to 125°C, but it's recommended to derate the output current and to ensure proper heat sinking to prevent overheating. It's also recommended to consult the datasheet and to perform thermal analysis to ensure reliable operation in high-temperature environments.
LP38853T-ADJ/NOPB datasheet
by Texas Instruments
