Two 30 mΩ (typical) MOSFETs for High The TPS54218 device is a full featured 6 V, 2 A,
Efficiency at 2 A loads synchronous step down current mode converter with
• 200kHz to 2MHz Switching Frequency two integrated MOSFETs.
• 0.8 V ± 1% Voltage Reference Over The TPS54218 enables small designs by integrating
Temperature the MOSFETs, implementing current mode control to
• Synchronizes to External Clock reduce external component count, reducing inductor
size by enabling up to 2 MHz switching frequency,
• Adjustable Slow Start/Sequencing and minimizing the IC footprint with a small 3mm x
• UV and OV Power Good Output 3mm thermally enhanced QFN package.
• Low Operating and Shutdown Quiescent The TPS54218 provides accurate regulation for a
Current variety of loads with an accurate ±1% Voltage
• Safe Start-up into Pre-Biased Output Reference (Vref) over temperature.
• Cycle by Cycle Current Limit, Thermal and Efficiency is maximized through the integrated 30mΩ
Frequency Fold Back Protection MOSFETs and 350μA typical supply current. Using
• –40°C to 150°C Operating Junction the enable pin, shutdown supply current is reduced to
Temperature Range 2 μA by entering a shutdown mode.
• Thermally Enhanced 3mm × 3mm 16-pin QFN Undervoltage lockout is internally set at 2.6 V, but
can be increased by programming the threshold with
APPLICATIONS a resistor network on the enable pin. The output
• Low-Voltage, High-Density Power Systems voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the
• Point of Load Regulation for High Performance output is within 93% to 107% of its nominal voltage.
DSPs, FPGAs, and Microprocessors
• Broadband, Networking and Optical Frequency fold back and thermal shutdown protects
Communications Infrastructure the device during an overcurrent condition.