TPS54140DGQR

Импульсный понижающий DC-DC стабилизатор, регулируемый, 2.5МГц, 3.5В-42В вход, 0.8В-39В/1.5А выход.

The TPS54140DGQR 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, the 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 and tracking. An open-drain power-good signal indicates the output is within 94 to 107% of the nominal voltage. A wide switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the device during an overload condition.

• High efficiency at light loads with a pulse skipping Eco-mode™
• Synchronizes to external clock
• Adjustable slow start/sequencing
• Undervoltage and overvoltage power-good output
• Adjustable UVLO voltage and hysteresis
• Supported by WEBENCH® software tool
• 200mR High-side MOSFET
• 0.8V Internal voltage reference
• Green product and no Sb/Br