SBVA094A
February 2025 – July 2025
TPS7A21
1
Abstract
Trademarks
1
Introduction
1.1
Oscilloscope Basics
2
Implications of Parasitics
3
Common Oscilloscope Issues
3.1
Choosing an Oscilloscope Probe
3.2
Sufficient Sampling
3.3
Visualization
3.4
Measuring Currents Using Current Probes
3.5
Bandwidth Limiting and Averaging
4
Parasitic Effects on Common Measurements
4.1
Load Transients
4.2
Power Supply Rejection Ratio
4.3
Output Noise Voltage
5
Summary
6
References
7
Revision History
Application Note
High Quality Low-Dropout Regulator Measurement Techniques