ADP7158ACPZ-2.0-R7

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

This paper will discuss the application fields and working principles of the ADP7158ACPZ-2.0-R7 Linear Voltage Regulator. The device is a low dropout (LDO) three-terminal positive regulator that is capable of providing up to 420mA of continuous output current. It is operated with an input voltage of 2.7V to 5.5V and provides a regulated output voltage of 0.8V to 4.5V.

The main features of the LDO regulator are the wide input and output voltage ranges, low quiescent current, high accuracy, low output noise, low dropout voltage, fast transient response, high PSRR, and short-circuit protection.

The ADP7158ACPZ-2.0-R7 is ideally suited for powering low power and low noise applications, such as telecom systems, notebook, PC, audio amplifiers, digital signal processor (DSP) and radio frequency (RF) circuits. Its wide input and output voltage ranges, low quiescent current and fast transient response makes this Linear Voltage Regulator an ideal choice for a wide variety of applications requiring regulated low voltage power supply.

The working principle of a Linear Voltage Regulator lies in the use of a series pass element, typically a bipolar junction transistor, integrated into the package. The series pass element is connected between the input and output and acts as a variable resistor. If the output voltage deviates from the nominal voltage, the voltage difference will be sensed at the error amplifier and the current through the transistor will be adjusted to compensate for the difference. This compensation is performed in order to maintain the output voltage in balance with the reference voltage. The controlled current through the pass element thereby regulates the output voltage.

The ADP7158ACPZ-2.0-R7 Linear Voltage Regulator has a series pass element with a current-sense resistor for improved regulation accuracy. It also features a power-on reset (POR) circuit that prevents output oscillation during start-up. The device requires two external capacitors for operation, one of which can be used to filter out the low frequency noise. The external feedback resistor is used to set the output voltage required by the application.

In conclusion, the ADP7158ACPZ-2.0-R7 Linear Voltage Regulator is a low dropout three-terminal positive regulator that is capable of providing up to 420mA of continuous output current. Its wide input and output voltage ranges, low quiescent current, high accuracy, low output noise, low dropout voltage, fast transient response, high PSRR, and short-circuit protection make it ideal for powering low power and low noise applications, such as telecom systems, notebook, PC, audio amplifiers, digital signal processor (DSP) and radio frequency (RF) circuits. The working principle of the Linear Voltage Regulator involves the use of a series pass element, typically a bipolar junction transistor, which is connected between the input and output and acts as a variable resistor. The external feedback resistor is used to set the output voltage required by the application.

The specific data is subject to PDF, and the above content is for reference