Регуляторы напряжения - Импульсные регуляторы TPS54319RTET

Импульсный понижающий DC-DC стабилизатор , регулируемый, 2.95В-6В (Vin), 800мВ-4.5В, 3А, WQFN-16

The TPS54319RTET is a synchronous step-down Current-mode Converter with two integrated MOSFETs. The TPS54319 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2MHz switching frequency. The TPS54319 provides accurate regulation for a variety of loads with an accurate ±3.0% voltage reference (VREF) over temperature. Efficiency is maximized through the integrated 45mR MOSFETs and 360µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2µA by entering a shutdown mode. Undervoltage lockout is internally set at 2.6V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93 to 107% of its nominal voltage.

• Synchronizes to external clock
• Adjustable slow start/sequencing
• Undervoltage and overvoltage power good output
• Pin compatible to TPS54318
• Two 45mR (typical) MOSFETs for high efficiency at 3A loads
• 0.8V ±3% Voltage reference over temperature (0 to 85°C)
• Green product and no Sb/Br

Области применения

Управление Питанием, Потребительская Электроника