Protection interface safeguards power management ICs
The AP9050 from Diodes Incorporated is a dedicated protection interface designed to protect the latest generation of power management ICs against overvoltages.
Comprising an LDO regulator and an n-channel power FET, the device controls supply current delivery to the PMIC, switching it on in the presence of a valid wall adapter or usb supply voltage and immediately off in the event of any overvoltage detection.
The device has an input supply range of 3 to 30V and is designed to safeguard a variety of portable products including smart phones, cell phones and netbooks. Employing multi die technology and a dual exposed pad DFN2020-6 package, Diodes claims the device offers lower power dissipation and higher efficiency than alternative Zener shunt regulator solutions.
The AP9050 does not require a bypass capacitor on the output and operates across a temperature range of -40 to 85ºC. It has a footprint of 2.1 x 2.1mm and a typical off board height of 0.575mm.
