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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftps7a13″>View Datasheet
Texas Instruments TPS7A13 300mA Ultra-Low Dropout (LDO) Voltage Regulator is a small, low-dropout regulator (LDO) with an excellent transient response. This device can source 300mA with outstanding ac performance (load and line transient responses). The input voltage range is from 0.7V to 2.2V, and the output range is from 0.5V to 2.05V with very high accuracy of 1% over load, line, and temperature.
The primary power path is through the IN pin and can be connected to a power supply as low as 50mV above the output voltage. All electrical characteristics (including excellent output voltage tolerance, transient response, and PSRR) are specified for input voltages 100mV greater than the output voltage, thereby yielding high practical efficiency. This regulator supports very low input voltages with the use of a higher, externally supplied VBIAS rail that is used to power the internal circuitry of the LDO. For example, the supply voltage to the IN pin can be the output of a high-efficiency DC/DC step-down regulator, and the BIAS pin supply voltage can be a rechargeable battery.
The Texas Instruments TPS7A13 is equipped with an active pulldown circuit to discharge the output quickly when disabled and provides a known start-up state. The TPS7A13 is available in an ultra-small 0.71mm × 1.0mm, 6-bump DSBGA package, making the device suitable for space-constrained applications.
