New from Texas Instruments are two -36 V low dropout regulators (LDO). The TPS7A30, paired with the positive voltage TPS7A49, provides designers with a total solution for powering precision analog applications. The devices feature high power supply rejection ratio (PSRR) performance and as low as 16 μVrms of output noise. The TPS7A30 generates 200 mA, while the TPS7A49 manages 150 mA.
The linear regulator family is stable with any output capacitance greater than 2,2 μF. The devices come in an adjustable version with an output voltage ranging from 1,22 to 34 V. The LDOs are designed for noise-sensitive applications such as test equipment; industrial, networking and telecom equipment; base stations; microwave and radio links; noise filtering for receive, transmit and power amplifiers; and medical applications.
The devices feature wide input voltages for robust tolerance of high line-voltage transients: -3,0 to -36 V for the TPS7A30 and +3,0 to +36 V for the TPS7A49. They provide 1,5% nominal accuracy over load, line and temperature for high precision for VCOs, PLLs and ADCs.
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