ADP5310AREZN-255R7

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PMIC stands for Power Management Integrated Circuit, and voltage regulators are used to control the voltage levels fed into electronic components. DC DC switching regulators take this a step further by providing a constant, regulated output. The ADP5310AREZN-255R7 is a DC DC switching voltage regulator designed for use in a variety of applications, thanks to its features and specifications.

Description

The ADP5310AREZN-255R7 DC DC switching voltage regulator, from Analog Devices, Inc., is a high performance switching regulator with a nominal output voltage of VCC=5V and an operating frequency of 10 kHz. The regulator is designed for a wide range of applications and can be used in a variety of different circuits, including motor control applications, microcontrollers, and digital signal processing (DSP) systems. It has an integrated 0.30 A synchronous buck converter and supports both Constant On Time (COT) and Proportional On Time (POT) modes. Additionally, the regulator is able to run up to 10A with the use of an external MOSFET.

Features

The ADP5310AREZN-255R7 DC DC switching voltage regulator has several unique features, which make it suitable for a wide range of applications:

• On-Board Error Amplifier - The error amplifier is a unity-gain operational amplifier that is connected to the supply voltage and can be used to create an external voltage reference for the output voltage.
• Integrated Current Limit - The integrated current limit feature protects the device from excessive load current draw.
• Wide Range of Output Voltage - The regulator has adjustable output voltage from 5V to 25V, which allows it to be used in a variety of different applications.
• Soft-Start Circuit - The regulator has an integrated soft-start circuit, which reduces input inrush current and eliminates voltage overshoots.
• Thermal Shutdown Protection - The regulator includes a thermal shutdown protection circuit, which turns off the device in the event of an overheat situation.

Application Fields

The ADP5310AREZN-255R7 DC DC switching voltage regulator can be used in a variety of different applications, such as battery-powered portable devices, DC-motor control, automotive circuits, and AC/DC power supplies. Specifically, its features make it suitable for applications such as microcontrollers, DSP systems, and motor controls.

Working Principle

The working principle of the ADP5310AREZN-255R7 DC DC switching voltage regulator is based on the principles of a buck converter. In a buck converter, the output voltage is determined by the ratio of the input voltage and the output voltage. The voltage regulator adjusts the output voltage by constantly switching between the input voltage and the output voltage.

When the output voltage is lower than the input voltage, the controlled switch (transistor) is switched off, and the input voltage passes through the output filter capacitor, providing the output voltage. When the output voltage is higher than the input voltage, the transistor is switched on and the voltage regulator disconnects the output filter capacitor, stopping the output voltage. By continuously switching the controlled switch, the voltage regulator is able to regulate the output voltage.

Conclusion

The ADP5310AREZN-255R7 is a DC DC switching voltage regulator designed for use in a variety of applications. It has an integrated 0.30 A synchronous buck converter and supports both Constant On Time (COT) and Proportional On Time (POT) modes. Additionally, the regulator is able to run up to 10A with the use of an external MOSFET. Moreover, the regulator has an integrated error amplifier and current limit circuit, as well as a soft-start circuit and thermal shutdown protection. The device is suitable for a wide range of applications, including microcontrollers, DSP systems, and motor controls.

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