TPS7A91 Series
1-A, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy
Manufacturer: Texas Instruments
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Key Features
• 1.0% Accuracy Over Line, Load, and TemperatureLow Output Noise: 4.7 µVRMS(10 Hz–100 kHz)Low Dropout: 200 mV (max) at 1 AWide Input Voltage Range: 1.4 V to 6.5 VWide Output Voltage Range: 0.8 V to 5.2 VHigh Power-Supply Ripple Rejection (PSRR):70 dB at DC40 dB at 100 kHz40 dB at 1 MHzFast Transient ResponseAdjustable Start-Up In-Rush Control with Selectable Soft-Start Charging CurrentOpen-Drain Power-Good (PG) Output2.5-mm × 2.5-mm, 10-Pin SON Package1.0% Accuracy Over Line, Load, and TemperatureLow Output Noise: 4.7 µVRMS(10 Hz–100 kHz)Low Dropout: 200 mV (max) at 1 AWide Input Voltage Range: 1.4 V to 6.5 VWide Output Voltage Range: 0.8 V to 5.2 VHigh Power-Supply Ripple Rejection (PSRR):70 dB at DC40 dB at 100 kHz40 dB at 1 MHzFast Transient ResponseAdjustable Start-Up In-Rush Control with Selectable Soft-Start Charging CurrentOpen-Drain Power-Good (PG) Output2.5-mm × 2.5-mm, 10-Pin SON Package
Description
AI
The TPS7A91 is a low-noise (4.7 µVRMS), 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-µVRMSoutput 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.
The TPS7A91 is a low-noise (4.7 µVRMS), 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-µVRMSoutput 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.