Texas Instruments TPS7A90 Low-Noise LDO Voltage Regulator
Texas Instruments TPS7A90 Low-Noise Low-Dropout (LDO) Voltage Regulator can source 500mA with only 100mV of the maximum dropout to 5V and 200mV to 5.7V. This device's output is adjustable with external resistors from 0.8V to 5.7V. The TPS7A90 wide input voltage range supports operation as low as 1.4V and up to 6.5V. With 1% output voltage accuracy (over the line, load, and temperature) and soft-start capabilities to reduce inrush current, the TPS7A90 is ideal for powering sensitive analog low-voltage devices. The TPS7A90 is designed to power noise-sensitive components such as those found in high-speed communication, video, medical, or test, and measurement applications.
Features
- 1.0% Accuracy over the line, load, and temperature
- 4.7µVRMS (10Hz to 100kHz) Low output noise
- 100mV (max) at 0.5A Low dropout
- 1.4V to 6.5V Wide input voltage range
- 0.8V to 5.7V Wide output voltage range
- High Power-Supply Rejection Ratio (PSRR)
- 60dB at DC
- 50dB at 100kHz
- 30dB at 1MHz
- Fast transient response
- Adjustable start-up in-rush control with selectable soft-start charging current
- Open-Drain Power-Good (PG) output
- θJC = 3.2ºC/W
- 2.5mm × 2.5mm, 10-Pin WSON package
Applications
- High-speed analog circuits
- VCO, ADC, DAC, LVDS
- Imaging of CMOS sensors, video ASICs
- Test and measurement
- Instrumentation, medical, and audio
- Digital loads of SerDes, FPGA, DSP
Associated Development Tools
Texas Instruments TPS7A91EVM-831 Evaluation Module (EVM)
Designed for a typical configuration to evaluate the operation and performance of the TPS7A91.
Videos
Functional Block Diagram
Publié le: 2017-08-14
| Mis à jour le: 2022-04-18