The maximum input voltage that can be applied to the TPS73130DBVRG4 is 13.2V, as specified in the absolute maximum ratings section of the datasheet. However, it's recommended to operate the device within the recommended operating conditions, which is up to 12V, to ensure reliable operation and to prevent damage to the device.
To ensure the stability of the output voltage in the TPS73130DBVRG4, it's essential to follow the recommended layout and component selection guidelines provided in the datasheet. This includes using a suitable output capacitor with a low equivalent series resistance (ESR), placing the input and output capacitors close to the device, and minimizing the loop area of the power traces. Additionally, the output voltage can be further stabilized by adding a capacitor in parallel with the output resistor (R2) in the feedback network.
The TPS73130DBVRG4 is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. It's essential to consider the device's thermal characteristics, such as the junction-to-ambient thermal resistance (RθJA), and ensure that the device is properly heatsinked and operated within its recommended operating conditions. Additionally, the device's output voltage and current capabilities may be derated at high temperatures, so it's crucial to consult the datasheet and application notes for guidance on high-temperature operation.
The output voltage of the TPS73130DBVRG4 can be calculated using the following formula: VOUT = VREF × (1 + R2/R1), where VREF is the internal reference voltage (1.243V), R1 is the feedback resistor connected between the output and the feedback pin, and R2 is the feedback resistor connected between the feedback pin and ground. The output voltage can be adjusted by selecting the appropriate values for R1 and R2.
The enable pin (EN) in the TPS73130DBVRG4 is used to enable or disable the device. When the EN pin is pulled high (above 1.4V), the device is enabled, and the output voltage is regulated. When the EN pin is pulled low (below 0.4V), the device is disabled, and the output voltage is turned off. The EN pin can be used to implement power sequencing, shutdown, or low-power modes in the system.
TPS73130DBVRG4 datasheet
by Texas Instruments
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