Allegro MicroSystems has announced the release of a new wide input 5 V output regulator designed to power automotive sensors and low power MCU. It can also be used for non-automotive applications where the input voltage could be above or below 5 V.
Allegro’s A4480 incorporates a multi-mode charge pump pre-regulator, followed by a 5V LDO. This enables operation with input voltages from 3.5 to 28 V (with 40V protection), while maintaining a 5 V output voltage. Compared to traditional LDO solutions, the efficiency across input range is improved, and Vin < Vout operation is enabled. Furthermore, as opposed to traditional switching solutions no inductor, diode, or external switching element is required (more info).