A good PCB layout for the TPS61161ADRVT 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. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
Choose input capacitors with a low ESR (Equivalent Series Resistance) and a high ripple current rating. For output capacitors, choose ones with a low ESR and a high capacitance value. The recommended capacitance values are 10uF to 22uF for the input capacitor and 22uF to 47uF for the output capacitor.
The maximum ambient temperature range for the TPS61161ADRVT is -40°C to 125°C. However, the device can operate up to 150°C with a reduced output current.
The output voltage of the TPS61161ADRVT can be calculated using the formula: Vout = (R1 / R2) * (Vref), where R1 and R2 are the resistors connected to the FB pin, and Vref is the internal reference voltage (1.21V).
The EN (Enable) pin is used to enable or disable the device. When the EN pin is high, the device is enabled, and when it is low, the device is disabled. This pin can be used to implement power sequencing or to turn off the device when not in use.
TPS61161ADRVT datasheet
by Texas Instruments
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