TPS65381QDAPRQ1

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TPS65381QDAPRQ1 is a Texas Instruments special purpose voltage regulator. As the first entry in Texas Instruments’ portfolio of DLPR/Q series of devices, it offers unprecedented flexibility and efficiency to application developers. Its primary areas of application are automotive, industrial, power management and mobile devices.

The TPS65381QDAPRQ1 is equipped with a vast array of features, including a wide input voltage range from 3.3 V – 36 V, programmable output voltage from 0.9 V – 6 V at ~50 kHz frequency, a high efficiency of up to 95.5%, and a low standby current for extended battery life. The integrated temperature monitoring, Adaptive On Time™(AOT) voltage control, and multi-phase current sharing ensure a smooth transition between start-up and steady state.

The working principle of the TPS65381QDAPRQ1 is relatively simple. The voltage output is achieved by regulating the input voltage via a power switch, which is driven by an error amplifier. The current limit of the device is set by controlling the current of the power switch. When the input voltage exceeds the output voltage, the error amplifier turns off the power switch, and when the input voltage drops below the output voltage, the error amplifier turns on the power switch. This ensures constant output voltage over a wide range of input voltages.

The DLPR/Q software further enhances the capabilities of this device. It allows the user to quickly configure the output voltage and current limits, as well as to adjust the frequency. The software also enables efficient power management via adaptive on-time (AOT) voltage and current control that are tailored to the application.

Overall, the TPS65381QDAPRQ1 is an excellent choice for applications such as automotive, industrial, power management and mobile devices. With its wide input voltage range, high efficiency and programmable output voltage, current and frequency limits, the device offers unprecedented flexibility and efficiency. The integrated temperature monitoring, Adaptive On Time™(AOT) voltage control, and multi-phase current sharing further improve system reliability and reduce total operating costs.

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