TPS7A91 LDO Voltage Regulator

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            TPS7A91 LDO Voltage Regulator
                    Texas Instruments offers its TPS7A91 1 A, high accuracy, low noise LDO voltage regulator
    

Image of Texas Instruments' TPS7A91 LDO Voltage Regulator Texas Instruments' TPS7A91 is a low-noise (4.7 µV_RMS), low-dropout (LDO) voltage regulator capable of sourcing 1 A with only 200 mV of maximum dropout.

The TPS7A91 output is adjustable with external resistors from 0.8 V to 5.2 V. The TPS7A91 wide input-voltage range supports operation as low as 1.4 V and up to 6.5 V.

With 1% output voltage accuracy (over line, load, and temperature) and soft-start capabilities to reduce in-rush current, the TPS7A91 is ideal for powering sensitive analog low-voltage devices [such as voltage-controlled oscillators (VCOs), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), high-end processors, and field-programmable gate arrays (FPGAs)].

The TPS7A91 is designed to power noise-sensitive components such as those found in high-speed communication, video, medical, or test and measurement applications. The very low 4.7 µV_RMS output noise and wideband PSRR (40 dB at 1 MHz) minimizes phase noise and clock jitter. These features maximize performance of clocking devices, ADCs, and DACs.

Features
1.0% accuracy over line, load, and temperature Low output noise: 4.7 µV_RMS (10 Hz to 100 kHz) Low dropout: 200 mV (max) at 1 A Wide input voltage range: 1.4 V to 6.5 V Wide output voltage range: 0.8 V to 5.2 V Fast transient response Adjustable start-up in-rush control with selectable soft-start charging current		High power-supply ripple rejection (PSRR): 70 dB at DC 40 dB at 100 kHz 40 dB at 1 MHz Open-drain power-good (PG) output 2.5 mm x 2.5 mm, 10-pin SON package
Applications
High-speed analog circuits: VCO, ADC, DAC, LVDS Imaging: CMOS sensors, video ASICs		Test and measurement Instrumentation, medical, and audio Digital loads: SerDes, FPGA, DSP