TPS76338DBVR

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The TPS76338DBVR is Linear voltage regulator designed and made by Texas Instruments. It is one of their many products in the PMIC - Voltage Regulators-Linear category. It is a three-terminal adjustable output voltage low-dropout linear voltage regulator with internal power-on reset, low-noise operation, and reverse current limit protection.

Its applications are suitable for automotive, consumer, communication, industrial, consumer and medical. It is ideal for portable applications since it has very small footprint without sacrificing performance. It is capable of driving 500mA of load current at high power supply voltages, providing flexibility of applications from 5.5V to 18V.

This voltage regulator is unique in its small size and low-noise operation. It comes in a thermally enhanced 10-pin micro SMD package consisting of a ceramic body and plastic lid. It does not need any external components except a feedback resistor to set the desired output voltage. Only thirty µA operating current is needed to maintain a regulated output voltage.

TPS76338DBVR operates over a wide input supply voltage range from 5.5 V to18 V and the output voltage range from 1.2 V to 16.5 V. It also has an adjustable current limit within 10 mA to 500 mA. It has an accuracy of ±1.4% and a dropout voltage of 350 mV for >500mA load current as a benchmark.

The working of a TPS76338DBVR can be broadly classified into three stages. It has an internal reference voltage generating stage, a power control stage and an output regulation stage. It utilizes a Sepic topology to convert the input voltage that is greater than the output voltage. The switching power stage combined with its low dropout voltage regulation ability makes it suitable for designing high efficiency converters. The feedback resistor sets the output voltage of the regulator while the voltage regulation loop provides stability and output accuracy. The internal circuit translates the VOUT voltage as a reference voltage which is compared to the external feedback resistor. The difference between these two voltages set the control loop which provides a regulationerror. This error then sets the current limit or, if large enough, it bursts the internal powerMOSFET.

In conclusion, TPS76338DBVR is a cost-effective and reliable Linear Voltage Regulator with an operating supply voltage range of 5.5 to 18 volts, an adjustable output voltage range of 1.2 to 16.5 volts, and a low dropout voltage of 350 mV for >500 mA load current. It comes in a thermally enhanced 10-pin micro SMD package and consumes only 0.03 mA of operating current. Its applications include automotive, consumer, communication, industrial, consumer and medical. It is ideal for portable applications due to its small footprint and low-noise operation.

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