Microchip Technology MIC5319-3.1YML TR

Description
The MIC5319 is a high-performance, 500mA LDO regulator offering extremely high PSRR and very low noise while consuming low ground current. Ideal for battery-operated applications, it features 1% accuracy, extremely low-dropout voltage (200mV @ 500mA), and low ground current at light load (typically 90μA). Equipped with a logic-compatible enable pin, the MIC5319 can be put into a zero-off-mode current state, drawing no current when disabled.
The MIC5319 is a uCap design operating with very small ceramic output capacitors for stability, reducing required board space and component cost. It is available in fixed-output voltages and adjustable output voltages in the super-compact 2mm x 2mm MLF leadless package and thin SOT-23-5 package.

Features
Ultra-low dropout voltage: 200mV @ 500mA
Input voltage range: 2.5 to 5.5V
Stable with ceramic output capacitor
Low output noise: 40μVrms
Low quiescent current of 90µA total
High PSRR, up to 70dB @ 1kHz
Fast turn-on-time: 40us typical
High-output accuracy:
±1.0% initial accuracy
±2.0% over temperature
Thermal-shutdown protection
Current-limit protection
Logic-controlled Enable
Tiny 2mm x 2mm MLF package, 500mA continuous
Thin SOT-23-5 package, 500mA peak

Applications
Cellular phones
PDAs
Fiber optic modules
Portable electronics
Notebook PCs
Audio Codec power supplies