TPS54140ADRCT Datasheet PDF - TI

The TPS54140ADRCT is a Step-down Regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low ripple-pulse skip mode reduces the no-load, regulated output supply current to 116µA. Using the enable pin, shutdown supply current is reduced to 1.3µA. Undervoltage lockout is internally set at 2.5V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 94 to 107% of its nominal voltage. A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.

● High efficiency at light loads with a pulse skipping Eco-mode™

● Tighter enable threshold than TPS54140 for more accurate UVLO voltage

● Adjustable UVLO voltage and hysteresis

● Synchronizes to external clock

● Adjustable slow start/sequencing

● Undervoltage and overvoltage power-good output

● Supported by WEBENCH® and SwitcherPro™ software tool

● 200mR High-side MOSFET

● 0.8V Internal voltage reference

● Green product and no Sb/Br