ADP7159RD-04-EVALZ

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ADP7159RD-04-EVALZ is an evaluation board with integrated 3-A, synchronous, step-down DC-to-DC regulator from Analog Devices Inc. It is designed for use in automotive, industrial, and consumer applications. The board features an integrated input voltage range from 4.5 V to 28 V, maximum output current of 3 A, and output voltage adjustable from 0.5 V to 5.5 V.

Application Fields

The ADP7159RD-04-EVALZ is suitable for automotive, industrial, and consumer applications where efficiency, high-temperature performance, fast transient response, and low-noise operation are needed. It has an input voltage range that allows use in many places, which makes it a versatile solution for many applications. Some of the application fields are displays, laptops, electric vehicles, LEDs, and consumer audio.

Working Principle

The ADP7159RD-04-EVALZ features an integrated, synchronous, 3-A step-down DC-to-DC buck converter. It is designed to operate from an input voltage range of 4.5 V to 28 V and requires a minimum of 4.0 V to start up. It provides output voltage adjustable from 0.5 V to 5.5 V and maximum output current of 3 A with 0.73 V high-side MOSFET switch and 0.52 V low-side switch. It also includes an adjustable soft-start function to minimize start-up current and sequencer to control its power stages independently.

The regulator features a power saving PWM-Only (PWO) mode and an Eco-mode for automatic power savings. In Eco-mode, the output voltage sets the switching frequency. This conserves power when the output load is light and provides fast load-transient performance during high loads. Its output voltage can be adjusted via the external voltage resistor divider connected to the VSET pin. The vsense pin can be connected to the remote output voltage sense resistor for remote sensing of the output voltage. It also features a low-voltage lockout circuitry that disables the device when the input voltage of the ADP7159RD-04-EVALZ falls below 4.5 V.

Conclusion

The ADP7159RD-04-EVALZ is an evaluation board with integrated 3-A, synchronous, step-down DC-to-DC regulator from Analog Devices Inc. It has an integrated input voltage range from 4.5 V to 28 V, maximum output current of 3 A, and output voltage adjustable from 0.5 V to 5.5 V. Its application fields are displays, laptops, electric vehicles, LEDs, and consumer audio use cases. It features a power saving PWM-Only (PWO) mode and an Eco-mode for automatic power savings. The ADP7159RD-04-EVALZ is a great solution for automotive, industrial, and consumer applications.

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