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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftps766″>View Datasheet
Texas Instruments TPS766 Low-Dropout (LDO) Linear Voltage Regulators support up to 250mA load current and input voltage range from 2.5V to 16V (new chip). The input voltage range is up to 16V (new chip), which makes the device a good choice for regulated rails (such as 10V or 12V) and operating from transformer secondary windings. The wide output voltage range also allows the device to generate the bias voltage for silicon carbide (SiC) gate drivers, microphones, power microcontrollers (MCUs), and processors.
Wide bandwidth PSRR performance is greater than 70dB at 1kHz and 46dB at 1MHz (new chip), which helps minimize post-regulator filtering and attenuate the switching frequency of an upstream DC/DC converter. The new chip supports an internal soft-start circuit mechanism that reduces inrush current during start-up, thus allowing for smaller input capacitance. The legacy chip supports constant quiescent current across the complete load current range (typically 35µA for the full range of output current, 0mA to 250mA).
The Texas Instruments TPS766 LDO also features a sleep mode, where applying a TTL high signal to EN (enable) shuts down the regulator. In disabled mode, the quiescent current for the new chip is approximately 1.6µA (typ), and the quiescent current for the legacy chip is less than 1µA (typ). Power-good (PG) is an active-high output that can implement a power-on reset or a low-battery indicator. The M3 suffix is a designator for new chip redesigns on the latest TI process technology. The TPS766 is available in an 8-pin SOIC package.
