MCHPMIC5504-3.3YM5-TR
Overview
The MIC5504-3.3YM5-TR is a compact, low-quiescent-current LDO regulator designed to provide a fixed 3.3V output from an input range of 2.5V to 5.5V. It delivers up to 300mA of output current while maintaining a very low typical ground current of 38 uA, making it suitable for battery-powered applications. The device includes an enable pin with an internal pull-down and an auto-discharge circuit to ensure the output is quickly brought to zero when disabled.
Why Choose This Part
This regulator features a high PSRR of 60dB at 1kHz, which is critical for filtering noise in sensitive analog circuits. It integrates thermal shutdown and current-limit protection into a tiny SOT-23-5 package, ensuring robust performance in space-constrained designs. Additionally, the extremely low shutdown current of 0.05 uA maximizes battery shelf life in off-state conditions.
Applications
Key Specifications
Getting Started
When integrating this LDO, place a 1uF ceramic capacitor close to the output pin to ensure stability. For thermal management, ensure adequate copper area is connected to the ground pin as the SOT-23-5 package relies on the PCB for heat dissipation. The enable pin can be driven directly by CMOS logic levels or tied to VIN if the auto-discharge feature is not required to be toggled.
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