The TPS54140ADRCT 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.
To ensure stability, 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 tolerance should be considered when selecting the output capacitor.
The TPS54140ADRCT can provide up to 4A of output current, but the actual output current capability depends on the input voltage, output voltage, and thermal conditions. It's essential to consider the device's thermal performance and power dissipation when designing the application.
The TPS54140ADRCT has built-in overcurrent protection (OCP) and thermal shutdown (TSD) features. The OCP threshold is typically set to 5.5A, and the TSD threshold is typically set to 150°C. Additionally, it's recommended to implement external protection mechanisms, such as fuses or PTC thermistors, to prevent damage from excessive current or temperature.
The EN (enable) pin is used to enable or disable the device. When the EN pin is pulled high (above 2.5V), the device is enabled, and when it's pulled low (below 0.8V), the device is disabled. The EN pin can be used to implement power sequencing, shutdown, or low-power modes in the application.
TPS54140ADRCT datasheet
by Texas Instruments
