AS1371-BTDT-20

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The AS1371-BTDT-20 is a device from ams belonging to their PMIC - Voltage Regulators - Linear family. This device is a low voltage, low quiescent current linear regulator. In terms of application, it can be used in a wide variety of applications from portable consumer devices to industrial and automotive applications such as motor control, power supply conversion, low-dropout (LDO) regulators, step-down DC-DC converters and many others.

In terms of the working principle, the AS1371-BTDT-20 provides the output voltage by controlling the current passing through a transistor, using a fraction of the input voltage as a reference voltage. This reference voltage is provided by an internal bandgap reference, maintained in a temperature-stable state. In linear mode, the output is regulated analogously as with a classic LDO.

The AS1371-BTDT-20 can also provide over-voltage protection: the output voltage is monitored and compared to a reference voltage. When the output voltage exceeds the reference output, the internal switch will automatically shut down to prevent damage to the load and to the device itself.

The device features an integrated high-side current monitor and PWM controller. This allows the response time of the output voltage to be varied, depending on the applications. In addition, the device also feature a wide operating temperature range, from -40°C to +105°C.

Finally, the integrated over-temperature protection function prevents the external transistor from overheating by disabling the device when the temperature exceeds a certain threshold.

In conclusion, the AS1371-BTDT-20 has a wide range of applications and working principle that makes it suitable for a wide range of applications and uses. Furthermore, its ability to provide over-voltage protection, flexible response time and wide temperature range makes it an ideal choice for a variety of applications.

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