BU20TD3WG-TR

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BU20TD3WG-TR, a high-performance three-terminal Low-Dropout (LDO) voltage regulator, provides current regulation while maintaining a constant voltage level. BU20TD3WG-TR belongs to the Linear Voltage Regulator category of PMICs. This high-performance voltage regulator, with a maximum output current of 350 mA and low dropout voltage of about 0.4 V, provides the functionality desirable for battery-powered applications.

The BU20TD3WG-TR has a wide input range and can operate with voltages ranging from 3V to 20V. It has an adjustable output voltage from 0.9V to 13V and a low output noise magnitude of 10 µV RMS. Multiple output capacitors can be used to ensure a stable output voltage over a wide range of load conditions. It also integrates a thermal shutdown protection feature to ensure safe operation of the device.

In addition, BU20TD3WG-TR features output current sense to detect over current faults. Input pins are overvoltage protected and current limiting protection. These features make it an ideal choice for shielding against excessive currents in power delivery applications like memory, FPGA, and automotive electronics.

BU20TD3WG-TR’s operation is based on a transconductance and error amplifier topology. This topology allows the output voltage to remain relatively constant over a wide range of input voltage, output voltage and load current variations. The transconductance stage is used to generate a voltage reference to the error amplifier which in turn creates a regulated output voltage. The current sensing and feedback control loop governs the operating conditions in the presence of load current variations. A linear regulator with such high performance is essential for applications requiring power efficient solutions and low noise.

BU20TD3WG-TR can be used with a wide range of applications, such as cellular handsets, tablets, notebooks, computer peripherals, smart meters, street lighting, energy saving systems, etc. This device is an excellent choice if the desired output voltage is relatively close to the input voltage. It provides excellent accuracy, fast transient response and wide temperature range, making it best suited for automotive and industrial applications.

In conclusion, BU20TD3WG-TR is a high-performance three-terminal low-dropout voltage regulator tailored to support power delivery applications. It features a wide input range, a low dropout voltage, a low output noise magnitude of 10 µV RMS and features various protection features. The device operates on a transconductance and error amplifier topology for superior accuracy and fast transient response making it an ideal choice for automotive, industrial and other applications requiring low noise and power efficiency.

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