The maximum input voltage that can be applied to the TPS54140ADGQR is 60V, but it's recommended to operate within the specified input voltage range of 4.5V to 40V for optimal performance and reliability.
To ensure the stability of the output voltage, it's essential to follow the recommended layout and component selection guidelines, including the use of a suitable output capacitor and a low-ESR input capacitor. Additionally, the output voltage can be adjusted using the FB pin, and the output voltage stability can be improved by adding a capacitor in parallel with the output capacitor.
The maximum output current that the TPS54140ADGQR can deliver is 4A, but it's recommended to operate within the specified output current range of 0A to 3.5A for optimal performance and reliability.
The TPS54140ADGQR has built-in overcurrent protection (OCP) and thermal shutdown (TSD) features to protect the device from overcurrent and overheating. Additionally, it's recommended to add external protection components, such as fuses or PTC thermistors, to provide additional protection against overcurrent and overheating.
The EN (enable) pin is used to enable or disable the TPS54140ADGQR. When the EN pin is pulled high, the device is enabled, and when it's pulled low, the device is disabled. This pin can be used to implement power sequencing or to turn off the device when not in use.
TPS54140ADGQR datasheet
by Texas Instruments
