REG103UA-5G4 Description
The REG103UA-5G4 is a low-noise, low-dropout, linear regulator with a low ground pin current. Its new DMOS topology provides a significant improvement over previous designs, including low-dropout voltage (only 115mV typ at full load), and better transient performance. In addition, no output capacitor is required for stability, unlike conventional low-dropout regulators that are difficult to compensate for and require expensive low ESR capacitors greater than lμF.
REG103UA-5G4 Features
Ultra-low dropout voltage: 115mV Typ at 500mA
Fast transient response
Very low noise: 33μVrms
High Accuracy: ±2% max
2.5V, 2.7V, 3.0V, 3.3V, 5.0V, and adjustable output versions
Foldback current limit
Thermal protection
Output voltage error indicator
Small surface-mount packages: SOT223-5, DDPAK-5, SO-8
REG103UA-5G4 Applications
Portable communication devices
Battery-powered equipment
Personal digital assistants
Modems
Bar-code scanners
Backup power supplies
