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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftps629203″>View Datasheet
Texas Instruments TPS629203/TPS629203-Q1 Low IQ Buck Converters are highly efficient, small, and highly flexible synchronous step-down DC-DC converters that are easy to use. A wide 3V to 17V input voltage range supports various systems powered from either 12V, 5V, or 3.3V supply rails, single-cell or multi-cell Li-Ion batteries. The TPS629203/TPS629203-Q1 can be configured to run at either 2.5MHz or 1MHz in a forced PWM mode or a variable frequency (auto PFM) mode. In auto PFM mode, the device automatically transitions to power save mode at light loads to maintain high efficiency. The low 4µA typical quiescent current provides high efficiency down to the smallest loads.
TI’s automatic efficiency enhancement (AEE) mode holds a high conversion efficiency through the whole operation range without the need to use different inductors by automatically adjusting the switching frequency based on input and output voltages. In addition to selecting the switching frequency behavior, the MODE/S-CONF input pin can also be used to select between different combinations of external and internal feedback dividers and enabling and disabling the output voltage discharge capability. In the internal feedback configuration, a resistor between the FB/VSET pin and GND can be used to select between 18 different output voltage options. The Texas Instruments TPS629203-Q1 devices are AEC-Q100 qualified for automotive applications.
