ADP5022ACBZ-2-R7 Integrated Circuits (ICs)

ADP5022ACBZ-2-R7: Future Power Management

The ADP5022ACBZ-2-R7 is a chip from Analog Devices’ ADM series of power management integrated circuits. It is a switching regulator featuring an integrated FET, low-noise linear regulator, and intelligent power management. This device is characterized for use in portable electronic devices in need of high energy density, low electric dropout (LDO) output and accurate current and power management capabilities. The ADP5022ACBZ-2-R7 is a monolithic power management integrated circuit (PMIC) in the ultra-low-power family of devices, capable of both linear and switching regulation.

Application Field

Being designed for use in rechargeable battery-operated devices, the ADP5022ACBZ-2-R7 is well-suited for mobile applications, including but not limited to portable media players, digital still cameras and mobile phones. Its combination of a rapid switch-mode and a low-noise linear regulator makes it exceptionally well-suited for applications with high output power demands, simultaneously requiring a low ripple current, while encouraging a longer battery life with its low electric dropout. Features such as soft-start limits inrush current when the device is turned on, and circuitry to protect the input and output of the power path.

Working Principle

To be able to meet its typical 12V output at 1A without a large power loss, the ADP5022ACBZ-2-R7 requires a minimum of 14V input voltage. For lower output voltages, it requires a minimum 8V input. The device is equipped with an intelligent power management control to ensure optimal short- and long-term power performances. This includes advanced control features that enable the device to switch between linear (LDO) and buck (BUCK) modes for efficiency and battery life extension. The device has two internal switches to control the paths of input voltage and a diode-like internal switch that is intended to reduce the power FET switching losses. Output voltage accuracy is maintained by a combination of load-line compensation and automatic adjustment for variations due to temperature and process changes. Additionally, the device has an enable pin that allows the system to control the power flow to and from the output. This allows system designers to control the power consumption of their device and consequently extend the system’s battery life.

Conclusion

The ADP5022ACBZ-2-R7 is an ultra-low power device designed for portable electronic devices. It supplies current to the output voltage with up to 1A without external components. It has several features allowing for energy saving and efficient energy management. Its combination of a fast, low power dropout switching regulator and a low-noise linear regulator makes it well-suited for applications requiring high power output levels with low ripple current.