Four-rail automotive PMIC in a 4x4 mm QFN
The TPS65033000RGERQ1 from Texas Instruments is an automotive-grade (AEC-Q100) power-management IC that integrates three step-down converters plus an additional output into a single 24-VQFN (4x4) package. It accepts two input rails — 2.5V–5.5V and 4V–18.3V — and delivers four regulated outputs covering 0.9V–1.9V, 1.8V–3.3V, and 2.5V–4V, making it a natural fit for powering the core, I/O, and analog sections of a digital still camera or automotive camera module.
What the dual input rails mean for your supply design
The lower input range (2.5V–5.5V) is typical for a pre-regulated 3.3V or 5V bus; the upper range (4V–18.3V) lets the PMIC connect directly to an automotive battery line or an unregulated 12V rail.