MCHPMIC5219-3.3YM5-TR
Overview
The MIC5219-3.3YM5-TR is an efficient 500mA low-dropout (LDO) regulator designed for battery-powered applications requiring high peak current and low noise. It features a high PSRR of 75dB at 120Hz and an ultra-low shutdown current of 3uA, making it ideal for maintaining battery life in portable electronics. The device is housed in a compact SOT-23-5 package and includes integrated protection against reverse polarity, overcurrent, and overtemperature conditions.
Why Choose This Part
The MIC5219 offers a high 500mA output capacity in a small SOT-23 footprint, which is significantly higher than many standard 150mA LDOs. It provides critical protection features including reverse-battery protection and thermal limiting, alongside a TTL-compatible enable pin for power sequencing.
Applications
Key Specifications
Getting Started
To implement this regulator, place a 1.0uF or larger tantalum or electrolytic capacitor on the output for stability. Ensure the input bypass capacitor is located close to the VIN and GND pins to mitigate source impedance. Use the EN pin to toggle between the 100uA operating quiescent current and the 3uA shutdown state.
Categories
