Texas Instruments TPS7A74 Low-Dropout (LDO) Linear Regulator
Texas Instruments TPS7A74 Low-Dropout (LDO) Linear Regulator provides an easy-to-use, robust power management solution for various applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is well-suited and monotonic for powering many types of processors and application-specific integrated circuits (ASICs). The enable input allows for easy sequencing with external regulators. This complete flexibility allows a solution to be configured that meets the sequencing requirements of digital signal processors (DSPs), field-programmable gate arrays (FPGAs), and other applications with special start-up requirements.
A precision reference and error amplifier deliver 1.5% accuracy over load, temperature, line, and process. The device is stable with any type of capacitor greater than or equal to 10µF. It is also fully specified for TJ = –40°C to +125°C. The Texas Instruments TPS7A74 is offered in a small, 3mm × 3mm, WSON-8 package, yielding a highly compact total solution size.
Features
- 0.65V to 3.6V VOUT range
- 0.65V to 6V ultra-low VIN range
- 1.7V to 6V VBIAS range
- 150mV typical at 1.5A, VBIAS = 5V low dropout
- 7.1µVRMS noise
- PSRR
- 70dB at 1kHz
- 60dB at 10kHz
- 55dB at 100kHz
- 50dB at 1MHz
- 1.5% accuracy over line, load, and temperature
- Programmable soft-start provides linear voltage start-up
- VBIAS permits low VIN operation with good transient response
- UVLO on both IN and BIAS
- Stable with any output capacitor ≥ 10µF
- Small, 3mm × 3mm × 0.8mm WSON-8 package
Applications
- High-performance computing
- Microservers
- Desktop and PC motherboards
- Data concentrators
- Rugged PC laptops
Functional Block Diagram
Related Development Tool
Texas Instruments TPS7A74EVM-068 Regulator Evaluation Module
Helps designers evaluate the operation and performance of the TPS7A74 LDO voltage regulator.
Yayınlandı: 2022-10-14
| Güncellenmiş: 2022-11-02