ADP5073ACPZ-R7

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ADP5073ACPZ-R7 is a 4V to 16V input voltage range, up to 6A output current capacity, DC/DC synchronous step down voltage regulator. It belongs to the PMIC (Power Management Integrated Circuit) family, more specifically, the Voltage Regulators, and specifically, the DC/DC Switching Regulators. It is developed by Analog Devices, Inc. with a 64-pin surface mount TQFN Plastic packages.

The ADP5073ACPZ-R7 has an efficient switching regulator with a synchronous rectification scheme up to 97 % typical efficiency. It has standard features that include over voltage protection (OVP) and under voltage protection (UVP). The device integrates a current mode PWM controller, low dropout regulator (LDO) with integrated driver, power switches and boot diode.

The ADP5073ACPZ-R7 operating temperature range is from -40°C to +125°C. It has a maximum switching frequency of up to 1.2 MHz and up to 6A output current capacity. It also supports a range of output voltage from 0.8V up to 6V with a 0.6V accurate regulation. The peak current limit is adjustable to meet various dynamic loading conditions. It has a programmable digital soft-start and dynamic output voltage with the use of a resistor. Finally, it also supports an enable input pin.

The PWM controller in the ADP5073ACPZ-R7 is based on the analog feedback of the power MOSFETs. It includes a pulse-by-pulse current limit, a weighted input error amplifier, a regulated current source and an adjustable oscillator and slope compensation. The design of the onboard PWM is done with the use of a current mode control loop which eliminates the need for a loop compensation, simplifying the design and improving the system stability.

The LDO sections has a voltage and current regulation paths. It uses an internal MOSFET and an integrated driver to send the regulated output voltage to the external load, ensuring a constant and accurate output voltage. The LDOs stabilize the input voltage at up to 16V. The low dropout voltage of the ADP5073ACPZ-R7 contributes to better system efficiency and reduces power consumption.

The power switches and boot diode of the ADP5073ACPZ-R7 will help to prevent the MOSFETs from entering into the linear region and maintain the switch mode operation. The integrated switches will provide the necessary current to the power output and drive it to the desired voltage level. The boot diode will allow the necessary current to flow through to start the switching process. The synchronous rectification scheme works in conjunction with the power switches and the boot diode to increase the output current efficiency and reduce heat.

The application field for the ADP5073ACPZ-R7 includes microprocessors, wireless communications, batteries, and other portable electronic devices. It is suitable for powering communications and display systems, as well as automotive embedded designs. Thanks to its onboard protection, this voltage regulator can also be used in more sensitive applications.

In conclusion, the ADP5073ACPZ-R7 is a DC/DC Synchronous Step Down Voltage Regulator belonging to the PMIC family. It is suitable for microprocessor, wireless and portable electronic applications, with a wide operating temperature range, up to 6A output current capacity and up to 97 % typical efficiency.

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