UC2525BDWTR datasheet by Texas Instruments

UC2525BDWTR Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the UC2525BDWTR?
  It's essential to follow a good layout and placement strategy to minimize electromagnetic interference (EMI) and ensure proper operation. TI recommends placing the IC close to the input capacitors, using a solid ground plane, and keeping the input and output traces separate.
• How do I choose the right input and output capacitors for the UC2525BDWTR?
  Select capacitors with low equivalent series resistance (ESR) and a high ripple current rating. The input capacitor should be at least 10uF, and the output capacitor should be at least 22uF. X5R or X7R ceramic capacitors are good options.
• What is the maximum input voltage for the UC2525BDWTR?
  Although the datasheet specifies a maximum input voltage of 18V, it's recommended to limit the input voltage to 15V to ensure reliable operation and prevent overheating.
• How do I adjust the output voltage of the UC2525BDWTR?
  The output voltage can be adjusted by changing the resistor divider ratio (R1 and R2) connected to the FB pin. Use the formula: Vout = 1.25V x (1 + R2/R1) to calculate the desired output voltage.
• What is the purpose of the EN pin on the UC2525BDWTR?
  The EN (enable) pin is used to turn the regulator on or off. When EN is high, the regulator is enabled, and when EN is low, the regulator is disabled. This pin can be used to implement power sequencing or to reduce power consumption in standby modes.