MIC5504-3V3 Linear Voltage Regulator IC 

MIC5504-3V3 Linear Voltage Regulator IC 

The MIC5504-3.3 is a low-dropout (LDO) linear voltage regulator from Microchip that provides a fixed 3.3 V output at up to 300 mA. It features very low quiescent current (as low as 38 µA), making it ideal for battery-powered applications. The device includes an enable pin, output discharge, overcurrent, and thermal protection. It operates with input voltages from 2.5 V to 5.5 V, and is available in compact SOT-23-5 and UDFN packages. The MIC5504 is well-suited for powering microcontrollers, sensors, and RF circuits.

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• Fixed 3.3 V output, accuracy ±2 %

• 300 mA output current capability

• Ultra-low quiescent current: ~38–55 µA

• Output discharge on disable 

• Enable pin with internal pull-down; requires logic high to enable

Specifications of MIC5504-3V3 Linear Voltage Regulator IC 

• Output Voltage: 3.3 V fixed 

• Max Output Current: 300 mA

• Dropout Voltage: 0.16 V @ 300 mA, up to 0.38 V

• Quiescent Current: 38–55 µA

• Supply Voltage Range: 2.5 V – 5.5 V

Applications of MIC5504-3V3 Linear Voltage Regulator IC 

• Battery-powered IoT devices and wearables

• Microcontrollers, sensors, and RF modules

• Handheld electronics, mobile gadgets

Package Includes 

      1 x MIC5504-3V3 Linear Voltage Regulator IC