MIC29202WT

Current - Output:	400mA
Base Part Number:	MIC29202
Supplier Device Package:	TO-220-5
Package / Case:	TO-220-5
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Load Dump, Over Current, Reverse Polarity
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	12mA
Current - Quiescent (Iq):	300µA
Series:	--
Voltage Dropout (Max):	0.75V @ 400mA
Voltage - Output (Max):	26V
Voltage - Output (Min/Fixed):	1.24V
Voltage - Input (Max):	26V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction of MIC29202WT

MIC29202WT is a tiny non-synchronous step-down power regulator from MICROCHIP. It is specifically designed for the low voltage, low current and ultra low stand-by current applications, delivering high efficiency power solutions. This IC is able to deliver up to 1.1A continuous output current in a very small space, with a low quiescent current of just 74µA. It is also equipped with a input voltage range from 4.5V to 20V, allowing it to be used in a wide range of power applications.

Application Field and Working Principle Of MIC29202WT

Application Fields

With its high performance and low power capability, MIC29202WT is typically used in industrial, automotive, and other space-restricted battery-operated instruments and systems. Some of the devices include mobile phones, automotive electronics, portable instruments, and personal devices. Thanks to its excellent electrical specifications and design, it is also optimal for use in applications with strict efficiency requirements.

Working Principle

The MIC29202WT is a small non-synchronous step-down power regulator that provides a constant output voltage with a wide input voltage range. It is based on a buck topology switching structure, which works by dynamically changing the upper switch to maintain a constant output voltage.Essentially, when the input voltage is greater than the output voltage, the upper switch turns on, allowing energy to flow into the inductor. During this time, the inductor current increases, which helps to store energy. When the input voltage drops below the output voltage, the switch turns off, releasing its energy into the output capacitor and providing a steady output voltage. The regulation is achieved by monitoring the output voltage and changing the switch on/off time accordingly.

Efficiency & Characteristics of MIC29202WT

The MIC29202WT is designed to work with a wide input voltage range, from 4.5V to 20V, making it suitable for a variety of power applications. It features integrated current limit and overtemperature protection, making it ideal for use in temperature-critical applications. In addition, it comes with a wide range of fixed or adjustable output voltage regulator configurations, providing added flexibility.In terms of efficiency, the MIC29202WT provides up to 92% efficiency in continuous operation due to its advanced switching and logic circuitry. This results in a low total power loss, allowing the IC to remain cool even at high currents. Furthermore, it has a low quiescent current of only 74µA and is capable of achieving ultra-low standby current consumption, making it suitable for portable and battery-powered applications.

Conclusion

The MIC29202WT is an advanced non-synchronous step-down power regulator from MICROCHIP. It is capable of delivering a wide range of adjustable or fixed output voltages, making it a flexible choice for a variety of power applications. It has excellent electrical specifications, with up to 92% efficiency in continuous operation, and a low quiescent current of only 74µA. Thanks to its advanced switching and logic hardware, it allows for ultra-low standby current consumption and is an ideal choice for battery-powered and temperature-critical devices.

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