500-mA, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy
Product details
Parameters
Package | Pins | Size
Features
- 1.0% accuracy over line, load, and temperature
- Low output noise: 4.7 µVRMS (10 Hz–100 kHz)
- Low dropout: 100 mV (max) at 0.5 A
- Wide input voltage range: 1.4 V to 6.5 V
- Wide output voltage range: 0.8 V to 5.7 V
- High power-supply rejection ratio (PSRR):
- 60 dB at DC
- 50 dB at 100 kHz
- 30 dB at 1 MHz
- Fast transient response
- Adjustable start-up in-rush control with selectable soft-start charging current
- Open-drain power-good (PG) output
- RθJC = 3.2ºC/W
- 2.5-mm × 2.5-mm, 10-pin WSON package
All trademarks are the property of their respective owners.
Description
The TPS7A90 is a low-noise (4.7 µVRMS), low-dropout (LDO) voltage regulator capable of sourcing 500 mA with only 100 mV of maximum dropout to 5 V and 200 mV to 5.7 V.
The TPS7A90 output is adjustable with external resistors from 0.8 V to 5.7 V. The TPS7A90 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 TPS7A90 is ideal for powering sensitive analog low-voltage devices [such as voltage-controlled oscillators (VCOs), analog-to-digital converters (ADCs), and digital-to-analog converters (DACs)].
The TPS7A90 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-µVRMS output noise and wideband PSRR (30 dB at 1 MHz) minimizes phase noise and clock jitter. These features maximize performance of clocking devices, ADCs, and DACs.
功能相同,但与相比较的设备引脚不同或参数不等效:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS7A90 500-mA, High-Accuracy, Low-Noise LDO Voltage Regulator datasheet (Rev. A) | Jun. 29, 2020 |
Application note | High-Performance CMOS Image Sensor Power Supply in Industrial Camera and Vision | Aug. 05, 2019 | |
Technical article | LDO basics: capacitor vs. capacitance | Aug. 01, 2018 | |
Technical article | LDO Basics: Preventing reverse current | Jul. 25, 2018 | |
Technical article | LDO basics: introduction to quiescent current | Jun. 20, 2018 | |
Selection guide | Low Dropout Regulators Quick Reference Guide (Rev. P) | Mar. 21, 2018 | |
Technical article | LDO basics: noise – part 1 | Jun. 14, 2017 | |
User guide | TPS7A91EVM-831 Evaluation Module User's Guide | Nov. 29, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The ADC3643 evaluation module (EVM) demonstrates the performance of the ADC3643, which is an ultra-low-power, high-linearity, analog-to-digital converter (ADC). Onboard voltage regulation and flexible analog input options allow easy evaluation for many different applications.
For a complete (...)
Features
- Parallel/serial CMOS interface
- USB powered with onboard power regulation
- Pin compatible with ADC364x products
- THS4541 FDA and Balun-coupled inputs allow for flexible evaluation
- TSW1400EVM and DATACONVERTERPRO-SW allow for easy data capture
- FMC connector allows for easy integration with FPGA development (...)
Description
The ADC3660 evaluation module (EVM) demonstrates the performance of the ADC3660, which is an ultra-low-power, high-linearity, analog-to-digital converter (ADC). Onboard voltage regulation and flexible analog input options allow easy evaluation for many different applications.
For a complete (...)
Features
- Serial CMOS interface
- USB powered with onboard power regulation
- Pin compatible with ADC364x products
- THS4541 FDA and Balun-coupled inputs allow for flexible evaluation
- TSW1400EVM and DATACONVERTERPRO-SW allow for easy data capture
- FMC connector allows for easy integration with FPGA development platforms
Description
Features
1% (max) Accuracy Over Line, Load, and Temperature
Low Output Noise: 3.8μVRMS (10 Hz–100 kHz)
Adjustable Output Voltage Range: 0.8 V to 5.2 V
High Power-Supply Ripple Rejection: 40 dB at 100 kHz
Design tools & simulation
Reference designs
Design files
-
download TIDA-010131 BOM Files.zip (314KB) -
download TIDA-010131 Assembly Files.zip (882KB) -
download TIDA-010131 Layer Plots.zip (8507KB) -
download TIDA-010131 CAD Files.zip (19873KB) -
download TIDA-010131 Gerber.zip (2572KB)
Design files
-
download TIDA-01023 BOM (Clocking Board).pdf (193KB) -
download TIDA-01023 BOM (FMC+ TO FMC Adapter Card).pdf (94KB) -
download TIDA-01023 Assembly Drawing (Clocking Board).pdf (1082KB) -
download TIDA-01023 Assembly Drawing (FMC+ TO FMC Adapter Card).pdf (644KB) -
download TIDA-01023 PCB (Clocking Board).pdf (7468KB) -
download TIDA-01023 PCB (FMC+ TO FMC Adapter Card).pdf (4389KB) -
download TIDA-01023 CAD Files (Clocking Board).zip (17783KB) -
download TIDA-01023 CAD Files (FMC+ TO FMC Adapter Card).zip (7976KB) -
download TIDA-01023 Gerber (Clocking Board).zip (6569KB) -
download TIDA-01023 Gerber (FMC+ TO FMC Adapter Card).zip (2080KB)
Design files
-
download TIDA-01024 BOM (Clocking Board).pdf (193KB) -
download TIDA-01024 BOM (FMC+ TO FMC Adapter Card).pdf (94KB) -
download TIDA-01024 Assembly Drawing (Clocking Board).pdf (1082KB) -
download TIDA-01024 Assembly Drawing (FMC+ TO FMC Adapter Card).pdf (644KB) -
download TIDA-01024 PCB (Clocking Board).pdf (7468KB) -
download TIDA-01024 PCB (FMC+ TO FMC Adapter Card).pdf (4389KB) -
download TIDA-01024 CAD Files (Clocking Board).zip (16987KB) -
download TIDA-01024 CAD Files (FMC+ TO FMC Adapter Card).zip (7976KB) -
download TIDA-01024 Gerber (Clocking Board).zip (6569KB) -
download TIDA-01024 Gerber (FMC+ TO FMC Adapter Card).zip (2080KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SON (DSK) | 10 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.