MCP1642BT-18I/MC

Voltage - Output (Min/Fixed):	1.8V
Base Part Number:	MCP1642
Supplier Device Package:	8-DFN (2x3)
Package / Case:	8-VFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	1MHz
Current - Output:	800mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	0.65V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MCP1642BT-18I/MC: Application Field and Working Principle

MCP1642BT-18I/MC are a family of DC-DC switching regulators that provide a wide range of voltage regulation, control and protection features for many on-board applications such as motor control, power management, datacom and test and measurement. This family of DC-DC switching regulators are small, low-power devices with a high-performance topology that enables them to deliver power at industry-leading efficiency and small form factors.The MCP1642BT-18I/MC family includes a variety of different devices with different power levels that allow users to optimally size the DC-DC switching regulator for a particular application. The MCP1642BT-18I/MC family of DC-DC switching regulators also contains on-chip fault protection and intelligent temperature sensing. This helps to protect system components from overvoltage, overcurrent and overtemperature conditions.The MCP1642BT-18I/MC family of DC-DC switching regulators is designed for a wide range of alternate voltage regulation strategies, such as pre-regulating or post-regulating. Power management techniques such as dynamic frequency scaling, burst mode, low ripple and power-saving mode of operation can be implemented with the MCP1642BT-18I/MC family of DC-DC switching regulators.

Working Principle

The MCP1642BT-18I/MC family of DC-DC switching regulators uses a buck converters topology to convert the input voltage to the desired regulated voltage. The buck converter is essentially a switch-mode power supply that converts a higher input voltage to a lower output voltage. It does this by using two transistors, an inductor and a diode. The two transistors are connected in a paddle configuration. The input voltage is applied on the gate of the MOSFET, which switches the MOSFET on and off. When the voltage is applied to the base of the transistor, the transistor is switched on and current flows through the inductor. The current induces a magnetic field in the inductor which is then discharged to the output. The output voltage is then regulated by changing the duty cycle of the transistors.The MCP1642BT-18I/MC family of DC-DC switching regulators also includes integrated features such as on-chip fault protection and temperature sensing. The fault protection monitors the output voltage and current in order to provide over-voltage, over-current and overtemperature protection. The temperature sensing helps to maintain an accurate and efficient supply to the system.

Conclusion

The MCP1642BT-18I/MC family of DC-DC switching regulators is an ideal choice for a wide range of on-board applications, such as motor control, power management, datacom and test and measurement. Its high-performance topology enables it to deliver power at industry-leading efficiency, small form factors and integration of on-chip fault protection and temperature sensing. The MCP1642BT-18I/MC is a great solution for providing an efficient, low-power and reliable power solution for many applications.

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