TIDA-01322 Reference Design

Texas Instruments

Low-Dropout (LDO): High-Current: and No-Bias Rail Reference Design for Industrial Applications

Description

This reference design demonstrates a low-noise: low-dropout (LDO): high-current power stage with no voltage-bias-rail requirement utilizing the LP5922 LDO linear regulator. The power stage demonstrated is ideal for industrial applications. Within industrial applications: low-noise power is often achieved by introducing an LDO at the point-of-load to clean up voltage ripple from a previous switching regulator power stage. LP5922 device makes this possible in an efficient manner by supporting very low dropout: which also eliminates any need for a voltage bias at its input.

Features
  • LDO allows up to 80% high-system efficiencyTwo high-current outputsHigh 70-dB PSRRLow-noise (26-µVRMS) output for sensitive devicesLow quiescent current: 25 mA at no load
Applications
Product Categories
  • Power management