DESCRIPTION
The TPS54229EDDAR is an adaptive on-time D-CAP2TMmode synchronous buck converter. The
TPS54229Eenables system designers to complete the suite ofvarious
end-equipment power bus regulators with acost effective, low
component count, low standbycurrent solution. The main control loop
for theTPS54229E uses the D-CAP2TM mode control thatprovides a fast
transient response with no externalcompensation components. The
adaptive on-timecontrol supports seamless transition between
PWMmode at higher load conditions and Eco-modeTwoperation at light
loads. Eco-modetm allows theTPS54229E to maintain high efficiency
during lighterload conditions.
The TPS54229EDDAR also has aproprietary circuit that enables the device to adopt
toboth low equivalent series resistance (ESR) outputcapacitors,
such as POSCAP or SP-CAP,and ultra-low ESR ceramic capacitors. The
device operatesfrom 4.5-V to 18-V VIN input. The output voltage
canbe programmed between 0.76 V and 7 V. The devicealso features an
adjustable soft start time. TheTPS54229E is available in the 8-pin
DDA package.and designed to operate from -40°C to 85°C.
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