LP2985-18DBVR datasheet by Texas Instruments

LP2985-18DBVR Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the LP2985-18DBVR can handle?
  The LP2985-18DBVR can handle input voltages up to 12V, but it's recommended to keep the input voltage between 4.5V to 10V for optimal performance.
• How do I ensure the stability of the output voltage?
  To ensure stability, it's essential to use a minimum output capacitance of 2.2uF, and a maximum ESR of 1 ohm. Additionally, the output capacitor should be placed as close to the output pin as possible.
• What is the maximum output current that the LP2985-18DBVR can provide?
  The LP2985-18DBVR can provide a maximum output current of 150mA. However, it's recommended to keep the output current below 100mA for optimal performance and to prevent overheating.
• How do I adjust the output voltage?
  The output voltage can be adjusted by using a resistor divider network between the output pin and the adjust pin. The output voltage can be calculated using the formula: Vout = 1.8V * (1 + R1/R2), where R1 and R2 are the resistors in the divider network.
• What is the purpose of the EN pin?
  The EN (enable) pin is used to enable or disable the regulator. When the EN pin is high, the regulator is enabled, and when it's low, the regulator is disabled. This pin can be used to shut down the regulator when not in use to reduce power consumption.