ADP7112ACBZ-1.8-R7 Integrated Circuits (ICs)

ADP7112ACBZ-1.8-R7 Application Field and Working Principle

ADP7112ACBZ-1.8-R7 is a high performance linear voltage regulator from Analog Devices, Inc. It is a voltage regulator that provides a low noise and stable output voltage while supporting both high Efficiency and fast transient response. The ADP7112ACBZ-1.8-R7 is designed for applications including Vdd regulation in PCs, consumer electronics, telecom and broadcast systems, as well as portable and mobile products.

Features and Advantages

• Wide Input Voltage Range: The ADP7112ACBZ-1.8-R7 operates over a wide operating input voltage range of 4.5V to 20V. This allows for greater flexibility in system design and allows for the use of alternative power sources.
• High Efficiency: The regulator provides a high efficiency and has a high transient response ideal for applications that require constant, stable output voltage.
• Low Dropout Voltage: The ADP7112ACBZ-1.8-R7 features a low dropout voltage of 2.25 mV, providing good accuracy and improved overall performance.
• Thermal Shut-Down: The ADP7112ACBZ-1.8-R7 features an excellent thermal shut-down feature which can be used to protect against system overheating.
• Output Voltage Options: The ADP7112ACBZ-1.8-R7 comes in various output voltage options such as 1.8V, 2.5V, 3.3V, and 5.0V.

Applications

The ADP7112ACBZ-1.8-R7 can be used for a variety of applications including:

• DC-DC Converters: The ADP7112ACBZ-1.8-R7 can be used as part of a DC-DC converter, allowing for an efficient conversion of voltage from one level to another. This is useful in applications such as mobile phones and other portable devices.
• Voltage Regulators: The ADP7112ACBZ-1.8-R7 can be used as part of a voltage regulator, allowing for a stable and constant output voltage regardless of input voltage levels.
• Power Supply: The ADP7112ACBZ-1.8-R7 can also be used as part of a power supply, providing a constant output voltage that is critical for stable operation of components in a system.

Working Principle

The ADP7112ACBZ-1.8-R7 is an adjustable linear voltage regulator with a few components. The adjust pin is used to determine the output voltage of the regulator by connecting an external voltage divider. The output of the regulator can then be adjusted based on the input voltage. The regulator also features a power-on reset circuit, which monitors the voltage level of the input voltage and when the input voltage is below the set threshold, the power-on reset circuit will cause the output of the regulator to remain disabled until the input voltage rises above the set threshold.

The regulator then senses the input voltage and compares it to the desired voltage. If the input voltage is below the desired voltage level, the regulator will draw current from the input and convert it into a regulated output voltage. If the input voltage is above the desired voltage level, then the regulator will draw less current, allowing the difference between the input and output voltages to stay within specified limits. This ensures that a stable and consistent output voltage is maintained.

The ADP7112ACBZ-1.8-R7 can be used as part of a power supply, providing a constant output voltage that is critical for stable operation of components in a system. The regulator is also designed to provide excellent thermal shut-down protection that can help protect the system against overheating.