TPS7A21 Overview
The TPS7A21 is an ultra-small, low-dropout (LDO) linear voltage regulator that can source 500 mA of output current. The device provides low noise, high PSRR, and excellent load and line transient performance to meet the requirements of RF and other sensitive analog circuits. Innovative design techniques result in low-noise performance without the addition of an external noise bypass capacitor.
TPS7A21 Key Features
- Very low IQ: 6.5 μA
- Input voltage range: 2.0 V to 6.0 V
- Output voltage range: 0.8 V to 5.5 V (50-mV steps)
- High PSRR: 91 dB at 1 kHz
- Low output voltage noise: 7.7 μVRMS
- Low dropout
- 175 mV (maximum) at 500 mA (2.5-V VOUT)
- Smart EN pulldown
- Output voltage tolerance
- ±1.5% (line, load, and temperature)