MIC5265-3.3YMT-TR

MIC5265-3.3YMT-TR Application Field and Working Principle

The MIC5265-3.3YMT-TR is a Voltage Regulator - Linear PMIC (Power Management Integrated Circuit) used to reduce the complexity of regulating an output voltage of 3.3 V or less. As an adjustable regulator, the device can set an output voltage not only with a single resistor, but also through remote sensing. All of this is done with a low quiescent current and a wide input voltage range of 4.5 V to 17 V and is also available in a space-saving 1.3 mm × 2.5 mm SOT-23 package.

Features and Benefits

• Wide range of output voltage settings, up to 3.3 V
• Adjustable output voltage with single resistor
• No external components necessary
• Low quiescent current
• Available in a space-saving SOT-23 package
• Low dropout voltage of only 370 mV

Applications

• Point of load (POL) regulators
• Lighting applications
• Power management
• Battery-operated devices
• Wireless phones
• Cameras and camcorders

Working Principle

The MIC5265-3.3YMT-TR is a low-dropout linear voltage regulator that works in a similar manner to a leaky transistor or a zener diode. The device is designed to maintain a constant output voltage despite varying current demands from its load. When the output voltage deviates from the intended voltage, the regulator will monitor the output voltage, and regulate it by increasing or decreasing the current flow. This adjustment is made possible by the differential amplifier circuit inside the regulator, which constantly compares the output voltage to the reference voltage.

The regulator can also be used with remote sensing. In this case, it will sense the voltage at the output, instead of the voltage at the regulator. This allows for closer regulation, as the actual load current is being monitored, instead of the output voltage of the regulator. In addition to remote sensing, the output voltage can also be configured by changing the value of a single resistor.

Conclusion

The MIC5265-3.3YMT-TR is a versatile PMIC that can be used to regulate output voltage from 4.5 V to 17 V, with a low quiescent current, and a wide range of output voltage settings of up to 3.3 V. The regulator can be used with a single resistor to set the output voltage, or with remote sensing for even more precise output voltage regulation. Thanks to its low dropout voltage and space-saving SOT-23 package, the MIC5265-3.3YMT-TR is an ideal choice for a variety of applications such as lighting applications, power management, wireless phones, and more.