Current - Output:	150mA, 150mA
Base Part Number:	MIC5210
Supplier Device Package:	8-MSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	75dB (100Hz)
Current - Supply (Max):	2.5mA
Current - Quiescent (Iq):	150µA
Series:	--
Voltage Dropout (Max):	0.35V @ 150mA, 0.35V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.7V, 3V
Voltage - Input (Max):	16V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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Introduction

The MIC5210-2.7/3.0BMM is a voltage regulator that can be used to monitor, control and regulate the power supply of sensitive electronic components such as microprocessors and memory. The MIC5210-2.7/3.0BMM fits into the category of linear voltage regulators as it provides precisely regulated low-noise DC power with low ripple. This high accuracy voltage regulator can provides a precise output voltage of either 2.7V or 3.0V, dependending on the device purchased. Additionally, this linear voltage regulator have a wide operating temperature range.

Power MOSFETs

The MIC5210-2.7/3.0BMM employs power MOSFETs to regulate the power supply of various electronic components. To understand how MOSFETs work, we must first look at their underlying structure. MOSFETs are formed from two pn-junctions connected together and connected to a gate, as seen in Figure 1. By applying a voltage between the gate and the source of the MOSFET, a channel is created which allows the current to flow from the source to the drain.
Figure 1: Cross-Section of a MOSFETThe voltage applied to the gate of the MOSFET determines the conductivity of the MOSFET; the higher the gate voltage, the higher the conductivity and vice versa. As a result, it can be concluded that increasing the gate voltage causes the source and drain to be connected. Furthermore, due to the inverse relationship between the gate voltage and the drain-source resistance, the MOSFET can be used to control the resistance and thus current which flows through it.

Working Principle

The MIC5210-2.7/3.0BMM works by monitoring the output voltage and compares it to the reference voltage at the bottom of the circuit. When they are matched, a steady output voltage is provided. Furthermore, the MIC5210-2.7/3.0BMM also includes a feedback control loop which controls the output voltage in order to keep it at the desired level. In order to achieve this, the MIC5210-2.7/3.0BMM has two stages which work together. The first stage is a high side MOSFET which is responsible for controlling the output voltage and the second stage is a low side MOSFET which is responsible for providing the reference voltage. The high side MOSFET acts as a switch which controls the output voltage by connecting and disconnecting the power supply to and from the load.By changing the gate voltage of the high side MOSFET, the output voltage can be regulated to a precise level. The low side MOSFET, meanwhile, serves as the reference voltage for the device. The difference between the reference voltage and the output voltage is monitored by the circuit which determines the gate voltage of the high side MOSFET.

Applications

The MIC5210-2.7/3.0BMM has a wide range of applications in the field of power regulation. The device can be used to monitor, control and regulate the power supply of sensitive electronic components such as microprocessors and memory devices. Additionally, the high accuracy voltage regulator can also be used in automotive, communication equipment and industrial application. Due to its low-noise power delivery and wide operating temperature range, the MIC5210-2.7/3.0BMM is an ideal choice for applications that require precise and consistent power supply for sensitive electronics.

Conclusion

The MIC5210-2.7/3.0BMM is a linear voltage regulator which can be used to precisely regulate the power supply for sensitive electronics. The device features two MOSFETs, a high side MOSFET and a low side MOSFET. The low side MOSFET provides a reference voltage and the high side MOSFET is responsible for controlling the output voltage. The device also includes a feedback control loop which monitors and adjusts the output voltage to ensure that it remains at the desired level. The wide operating temperature range and low-noise power delivery make the MIC5210-2.7/3.0BMM ideally suited for precision power regulation.

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