TPS65381AQDAPTQ1

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The TPS65381AQDAPTQ1 is a 4-channel Power Management IC (PMIC) designed to facilitate power distribution and control in multi-rail, precision analog systems. It can support up to four outputs and monitor the voltage of each output. It is typically used in applications requiring very accurate voltage regulation, such as high-precision, analog-to-digital converters (ADCs), audio, motor control, and automotive. Additionally, the TPS65381AQDAPTQ1 has various features to enable system monitoring, protect the supply rails and ensure that sufficient power is available for system operation.

The TPS65381AQDAPTQ1 falls into the category of PMICs - Voltage Regulators - Special Purpose. It is a monolithic integrated circuit with a wide voltage range and precision voltage regulation. It offers excellent protection for the power rails and includes numerous current and voltage monitoring features. Additionally, the device offers programmable over-temperature shutdown, current- and temperature-based thermal shutdown, and automatic voltage scaling (AVS).

The TPS65381AQDAPTQ1 operates over a wide voltage range of 3.3V to 27V and provides up to 3A of constant current. The device contains an on-board oscillator and PWM logic that regulates the output voltage based on the input from the external microprocessor or other control signal. The device also offers adjustable precision voltage scaling, thermal protection, and cycle-by-cycle current limit. Additionally, it offers a unique feature for flexible voltage control, which enables the device to generate a square wave signal with a high-side/low-side ratio of 1:1.6 to provide more flexibility when setting output voltages.

The device can support up to four outputs, three of which are controlled by the internal oscillator and one of which is controlled by an external control signal. It has a 0.8 mΩ low-side FET and 0.5 mΩ high-side FET to assist power conversions. Additionally, it contains a return path compensator circuit, enabling it to quickly and accurately start up and maintain the regulated voltage. It also contains a high level of protection against over-voltage, under-voltage, and over-current, ensuring that the system is protected from voltage surges or other abnormal circumstances.

The TPS65381AQDAPTQ1 is an excellent choice for applications requiring high accuracy, fast response time, and flexibility in power delivery. It is especially helpful for applications requiring multiple rails for precise, low-noise operation, such as high-precision, audio-related systems. Its robust protection and current limiting features ensure it will stay safe even under low or fluctuating load conditions.

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