The minimum input voltage required for the LM317LZ to operate is 3V above the output voltage. For example, if the output voltage is 5V, the minimum input voltage would be 8V.
To ensure stability and prevent oscillations, a minimum output capacitance of 1uF is recommended. Additionally, the input capacitor should be at least 10uF to prevent oscillations.
The maximum current that the LM317LZ can deliver is 1.5A. However, it's recommended to derate the current to 1A or less to ensure reliable operation.
No, the LM317LZ is not designed to be used as a negative voltage regulator. It's only suitable for positive voltage regulation.
The output voltage of the LM317LZ can be adjusted by using a resistive divider network between the output and the adjust pin. The output voltage is determined by the ratio of the resistors.
LM317LZ datasheet
by Texas Instruments
