1 Features

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
  • Device HBM ESD Classification Level H2
  • Device CDM ESD Classification Level C4B
• 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 μV_RMS typical (100 Hz to
  100 kHz)
• Stable With 4.7-μF Output Capacitance
• Excellent Load and Line Transient Response
• 3% Overall Accuracy (Over Load, Line, Temperature)
• Over-Current and Overtemperature Protection
• Very Low Dropout: 170 mV Typical at 1 A
• Package: 3-mm × 3-mm SON-8

2 Applications

• RF Power in Automotive Applications
• Automotive ADAS ECUs
• Telematic Control Units
• Audio
• High-Speed I/F (PLL and VCO)

3 Description

The TPS7A8101-Q1 low-dropout linear regulator (LDO) offers very good performance in output noise and power-supply rejection ratio (PSRR). 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-Q1 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 T_A = –40°C to 125°C and is offered in a
3-mm × 3-mm, SON-8 package with a thermal pad.

4 Typical Application Circuit

Typical Power-Supply Ripple Rejection