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Partname: | TPS54418 |
Description: | 2.95 V to 6 V Input, 4 A Output, 2MHz, Synchronous Step Down Switcher With Integrated FETs ( SWIFT???) |
Manufacturer: | Texas Instruments |
Datasheet: | PDF (1.45M). Click here to download *) |
The TPS54418 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm x 3mm thermally enhanced QFN package. The TPS54418 provides accurate regulation for a variety of loads with an accurate 1% Voltage Reference (VREF) over temperature. Efficiency is maximized through the integrated 30m MOSFETs and 350mA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 mA by entering a shutdown mode. Under voltage lockout is internally set at 2.6 V, 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. Frequency fold back and thermal shutdown protects the device during an overcurrent condition. |
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Click here to download TPS54418 Datasheet*) |
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