TPS77628PWP

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TPS77628PWP is a linear voltage regulator integrated circuit (IC) that provides an adjustable, low ripple, low dropout (LDO) voltage regulator. It is suitable for a wide range of applications that require a voltage regulator to maintain a supply voltage in the range of 1.245V to 5.5V.

TPS77628PWP contains a voltage reference, an error amplifier, a current source, a P-channel power MOSFET, and a logic circuit, allowing it to regulate output voltages from 1.245V to 5.5V with a step of 0.005V. The output voltage is also adjustable, allowing the user to set the output voltage from the outside by using two external resistors.

The application field of TPS77628PWP can be found in systems that require a low ripple, low noise, and efficient voltage regulator. It can be used in almost any application that requires a regulated supply voltage up to 5.5V, such as digital devices, microprocessor systems, automotive systems, medical equipment, and industrial instrumentations. Since it is a low dropout (LDO) voltage regulator, it is an ideal choice for applications that require a low-voltage supply.

The working principle of TPS77628PWP is based on the principle of negative feedback. The voltage reference generates a fixed voltage at the output, which is then compared to the voltage at the input by the error amplifier. If the input voltage deviates from the output voltage set by the voltage reference and the external resistors, the error amplifier will generate a control voltage by negative feedback, driving the P-channel MOSFET, and reducing the output voltage. This ensures that the output voltage stays within a close range of the setpoint of the voltage reference and the external resistors.

The TPS77628PWP voltage regulator features include a maximum output current of 1A and a low dropout voltage of 1.2V max at full load. It provides over-temperature protection and over-current protection, and it can handle load transient more efficiently than other voltage regulators. The low dropout voltage allows it to deliver a higher output current without the need for bulky external components. It is also a low noise voltage regulator and provides efficiency up to 90% in normal operation.

The TPS77628PWP is easy to design with and is available in the standard 8-pin SOIC package, making it suitable for small form factor applications. It requires only two small external resistors to set the output voltage, and the output voltage is adjustable from 1.245V to 5.5V in 0.005V increments. This makes it an ideal solution for voltage regulation applications that require a precise output voltage.

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