TPS3619-33DGK datasheet by Texas Instruments

TPS3619-33DGK Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the TPS3619-33DGK to ensure optimal performance?
  A good PCB layout for the TPS3619-33DGK involves placing the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. Additionally, it's recommended to use a separate analog and digital ground plane to reduce noise coupling.
• How do I ensure the TPS3619-33DGK is stable and doesn't oscillate?
  To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the output capacitor has a low equivalent series resistance (ESR) and is placed close to the device. Also, avoid using capacitors with high inductance or resistance in the output filter.
• What is the maximum input voltage that the TPS3619-33DGK can handle?
  The TPS3619-33DGK can handle input voltages up to 18V, but it's recommended to operate within the specified input voltage range of 3.5V to 15V for optimal performance and reliability.
• Can I use the TPS3619-33DGK in a high-temperature environment?
  The TPS3619-33DGK is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at higher temperatures to ensure reliability and prevent thermal shutdown.
• How do I calculate the output voltage ripple of the TPS3619-33DGK?
  The output voltage ripple of the TPS3619-33DGK can be calculated using the formula: ΔVout = (Iout * ESR) / (f * Cout), where Iout is the output current, ESR is the equivalent series resistance of the output capacitor, f is the switching frequency, and Cout is the output capacitance.