SBVA093
December 2022
TPS7A57
,
TPS7A94
Abstract
Trademarks
1
Introduction
2
Comprehensive Review of Error in LDO's
2.1
Commentary on Real World Error Voltage (VE) in Single LDO's
2.1.1
VREF Pin
2.1.2
VFB Pin
3
Current Sharing and Load Voltage Analysis for n Parallel LDO's
3.1
Commentary on Parallel LDO's in Real World Applications
4
Ballast Resistor Design and Analysis
4.1
Selecting the Ballast Resistor Value
4.2
PCB Ballast Resistor Design vs. Discrete Ballast Resistance
5
Impacts and Opportunities of PCB Parasitic Impedance
6
Design Examples
6.1
TPS7A57
6.2
TPS7A47xx
7
Conclusion
8
References