LMC7660IM/NOPB datasheet by Texas Instruments

LMC7660IM/NOPB Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LMC7660?
  The maximum input voltage that can be applied to the LMC7660 is 12V. Exceeding this voltage may damage the device.
• How do I ensure stability in the output voltage of the LMC7660?
  To ensure stability in the output voltage, it is recommended to use a minimum output capacitance of 10uF and a minimum ESR of 5 ohms. Additionally, the input capacitor should be at least 1uF with an ESR of 5 ohms or less.
• What is the maximum output current that the LMC7660 can provide?
  The maximum output current that the LMC7660 can provide is 20mA. Exceeding this current may cause the device to overheat or malfunction.
• How do I choose the correct output voltage for my application?
  The output voltage of the LMC7660 can be adjusted by selecting the correct ratio of resistors R1 and R2. The output voltage can be calculated using the formula: Vout = 1.25 x (1 + R2/R1).
• What is the purpose of the noise reduction capacitor (CNR) in the LMC7660?
  The noise reduction capacitor (CNR) is used to filter out high-frequency noise in the output voltage. It is recommended to use a 10nF to 100nF capacitor for this purpose.