TPS65123RGTT datasheet by Texas Instruments

TPS65123RGTT Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the TPS65123RGTT?
  Texas Instruments recommends a compact layout with the input capacitors (CIN) placed close to the VIN pin, and the output capacitors (COUT) placed close to the VOUT pin. The device should be placed near the input power source, and the output voltage should be routed away from the input to minimize noise coupling.
• How do I ensure the TPS65123RGTT is stable and doesn't oscillate?
  To ensure stability, follow the recommended component values and layout guidelines in the datasheet. Additionally, ensure that the output capacitor (COUT) has a low equivalent series resistance (ESR) and is placed close to the VOUT pin. A minimum output capacitance of 10uF is recommended.
• What is the maximum input voltage that can be applied to the TPS65123RGTT?
  The maximum input voltage rating for the TPS65123RGTT is 18V. However, it's recommended to operate the device within the specified input voltage range (4.5V to 15V) to ensure optimal performance and reliability.
• Can I use the TPS65123RGTT in a high-temperature environment?
  The TPS65123RGTT is rated for operation up to 125°C (TJ). However, the device's performance and reliability may degrade at high temperatures. It's essential to follow the recommended operating conditions and thermal management guidelines to ensure reliable operation.
• How do I calculate the output voltage of the TPS65123RGTT?
  The output voltage (VOUT) of the TPS65123RGTT can be calculated using the following formula: VOUT = (VREF x (1 + R1/R2)), where VREF is the internal reference voltage (1.2V), and R1 and R2 are the resistors connected to the FB pin.