USB Type-C controller with a 3.14V–3.45V rail
The TPS65987DDJRSHR is a Texas Instruments USB Type-C controller that manages power negotiation and cable orientation detection on a USB-C port. Its supply rail is specified at 3.14V to 3.45V — a 310 mV window that demands a clean 3.3V rail with less than 5% regulation error. If your board's 3.3V bus is shared with noisy logic or a switching regulator, budget a dedicated LDO or a ferrite bead plus decoupling to stay inside the window.
8 mA supply current and -10°C to 75°C range
The controller draws 8 mA typical from the 3.3V rail, which keeps the power dissipation low in the 56-VQFN (7x7) package. The operating temperature range of -10°C to 75°C limits this part to commercial indoor environments — not rated for automotive cabin or industrial enclosures where ambient exceeds 75°C.
Active production — no obsolescence watch
56-VQFN footprint and thermal pad
The layout engineer should connect this pad to the ground plane with multiple vias to keep the junction temperature below the 75°C ambient ceiling.