TPS73701DCQRG4

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The TPS73701DCQRG4 is a high-performance low-dropout linear voltage regulator with a variety of outputs ranging from 0.38V to 5.4V. It is a 5-lead, low dropout, low-power CMOS device. The main applications for which the TPS73701DCQRG4 is best suited include automotive power systems, consumer electronics, industrial systems, remote sensor applications, and other DC applications. The TPS73701DCQRG4 is classified as a PMIC (Power Management IC) – Voltage Regulators – Linear.

The TPS73701DCQRG4 is designed to maximize power efficiency in a wide variety of output levels, allowing for current up to 1A and voltage range of 0.38V to 5.4V. It can reduce the output voltage ± 0.4V, enabling the use of connected devices with lower power consumption than an input of 3V. By providing high output accuracy, the device also allows for more dynamic control of the output current by changing the voltage range. Additionally, the TPS73701DCQRG4 is provided with a 200kHz fixed frequency PWM (Pulse Width Modulation), allowing users to reduce board space, ripple current, and operating noise.

From a functional standpoint, the TPS73701DCQRG4 consists of an on-chip power MOS (metal oxide semiconductor) transistor, an error amplifier and a voltage reference. The MOS transistor acts as a switch to draw current either from the input or the output port, which is controlled by the error amplifier. The error amplifier compares the error signal between the REF voltage and an external voltage and then it amplifies the signal to control the voltage of the output. The voltage reference provides stable output, which is adjustable in the range of 0.38V to 5.4V.

The device operates in shutdown mode when the signal Enable is low and in normal operating mode when the signal is high. This signal is also used to initiate the device after the chip has entered the shutdown state. The TPS73701DCQRG4 also includes an over temperature and overload protection circuitry which monitors the operating temperature and the current, and reduces the output current when the temperature or the current is excessively large.

The device also offers short-circuit protection through a built-in current limit feature. The current limit is user selectable and can be set at either 0.2A, 0.5A and 1A. The device features an on-chip soft start and remote sensing circuitry to maintain regulation even under varying load conditions. Finally, the TPS73701DCQRG4 offers adjustable logic monitoring of the input voltage and output current and provides an output enable signal of 4.75V.

The TPS73701DCQRG4 is a high-performance, versatile linear voltage regulator for a variety of applications, ranging from automotive power systems to remote sensor applications. With its wide range of output levels, high power efficiency, reduced ripple current, adjustable voltage range and user-selectable current limit features, it provides a reliable and cost-effective solution for system designers.

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