TPS7A8101 Low-Noise, Wide-Bandwidth, High PSRR, Low-Dropout 1-A Linear Regulator
1 Features
- Low-Dropout 1-A Regulator with Enable
- Adjustable Output Voltage: 0.8 V to 6 V
- Wide-Bandwidth High PSRR:
- 80 dB at 1 kHz
- 60 dB at 100 kHz
- 54 dB at 1 MHz
- Low Noise: 23.5 μVRMS typical (100 Hz to
100 kHz) - Stable with a 4.7-μF Capacitance
- Excellent Load and Line Transient Response
- 3% Overall Accuracy (Over Load, Line, Temperature)
- Overcurrent and Overtemperature Protection
- Very Low Dropout: 170 mV Typical at 1 A
- Package: 3-mm × 3-mm SON-8
2 Applications
- Telecom Infrastructure
- Audio
- High-Speed I/F (PLL and VCO)
3 Description
The TPS7A8101 low-dropout linear regulator (LDO) offers very good performance in noise and power-supply rejection ratio (PSRR) at the output. This LDO uses an advanced BiCMOS process and a PMOSFET pass device to achieve very low noise, excellent transient response, and excellent PSRR performance.
The TPS7A8101 device is stable with a 4.7-μF ceramic output capacitor, and uses a precision voltage reference and feedback loop to achieve a worst-case accuracy of 3% over all load, line, process, and temperature variations.
This device is fully specified over the temperature range of TJ = –40°C to 125°C and is offered in a 3-mm × 3-mm, SON-8 package with a thermal pad.
Device Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| TPS7A8101 | SON (8) | 3.00 mm × 3.00 mm |
- For all available packages, see the orderable addendum at the end of the data sheet.
Typical Application Circuit
4 Revision History
Changes from A Revision (April 2012) to B Revision
- Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go
Changes from * Revision (December 2011) to A Revision
- Added new footnote 2 to Thermal Information table, changed footnote 3Go