Qorvo's USB Fast Charger PMIC Serves Mobile Devices in Vehicles
January 16, 2020
Integrating power and analog functions into a single IC, the ACT4751M meets all power requirements for USB Fast Charger applications
Qorvo introduced a power management integrated circuit (PMIC) that addresses rapid in-vehicle charging of phones, tablets and laptops. Qorvo's ACT4751M is presented as the industry's first AEC-Q100 qualified step-down, voltage-regulator IC dedicated to USB Type-C Fast Charger applications.
Integrating power and analog functions into a single IC, the ACT4751M meets all power requirements for USB Fast Charger applications, including the Power Delivery 3.0 Programmable Power Supply (USB PD 3.0 PPS) specification. The self-contained, step-down ACT4751M operates up to 40V, and has protection features that can withstand up to 48V of load-dump events in demanding automotive environments.
Input Voltage 4.5 to 40V
Output Voltage 3.0 to 24V in 12.5mV step programming
Output Current 0 to 4A in 256 steps programming
Switching Frequency 450 to 2,250 kHz with spread-spectrum operation
Auxiliary Power Rails Mini-Buck: 350mA; LDO: 20mA
Package Type and Size QFN, 32-pin with step-cut & side-wall-plating; 5 x 5
USB PD 3.0 Certification Yes (multiple certified reference designs)