RH117H datasheet by Linear Technology

RH117H Frequently Asked Questions (FAQs)

• What is the maximum input voltage that the RH117H can handle?
  The RH117H can handle input voltages up to 60V, but it's recommended to operate within the specified input voltage range of 4.5V to 40V for optimal performance.
• How do I ensure the RH117H is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended layout and component selection guidelines, and add a 10nF capacitor between the VIN and GND pins to filter out noise.
• What is the minimum ESR requirement for the output capacitor?
  The RH117H requires an output capacitor with an ESR of 0.1Ω or less to ensure stability and optimal performance.
• Can I use the RH117H in a high-temperature environment?
  The RH117H is rated for operation up to 125°C, but it's recommended to derate the output current and voltage according to the temperature derating curve to ensure reliability.
• How do I calculate the output voltage ripple of the RH117H?
  The output voltage ripple can be calculated using the formula: ΔVout = (Iout x ESR) / (f x Cout), where Iout is the output current, ESR is the output capacitor's equivalent series resistance, f is the switching frequency, and Cout is the output capacitance.