MCP1642D-30I/MS

Voltage - Output (Min/Fixed):	3V
Base Part Number:	MCP1642
Supplier Device Package:	8-MSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
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:	Tube

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MCP1642D-30I/MS is a DC/DC switching regulator device developed by Microchip Technology and it belongs to the family of Power Management Integrated Circuits (PMIC). DC/DC switching regulators are electrical circuits used to regulate the output voltage from a power source. These power sources are usually output from solar cells, batteries, or other rectangular waveform outputs. They serve a similar purpose as voltage regulators, providing a steady output voltage for devices requiring power at different voltages than the original source. DC/DC switching regulators offer higher efficiency and a much wider selection of output capabilities than traditional linear regulators.The MCP1642D-30I/MS is designed with a maximum output current of 16A, can regulate a wide range of output voltages from 0.8V to 5V, and provides protection from over-voltage, over-current, and thermal shutdown. It is optimized for low-noise operation and incorporates an integrated PWM controller and MOSFETs. The PWM controller is capable of working at frequencies of up to 100 kHz, enabling higher efficiency switching regulators. The MCP1642 also has an integrated soft-start feature to reduce the initial inrush current to the output.The MCP1642D-30I/MS DC/DC switching regulator works in two stages. In the first stage, the integrated PWM controller generates a rectangular PWM signal. This signal is used to drive the power MOSFETs, which incorporate a pre-biased on/off circuit. The power MOSFET acts as an electronic switch to control power transfer from the input voltage source to the output voltage desired.The second stage of the MCP1642 is the error amplifier. This stage compares the actual, or output, voltage with the divided input voltage, to generate an error signal. This error signal is fed back to the PWM controller to adjust the duty cycle of the PWM signal accordingly. The duty cycle is finely adjusted so that the output voltage is within a certain range of the input voltage. This allows for a much higher efficiency than linear regulators, which dissipate the difference between input and output voltage as heat.The MCP164D-30I/MS can operate in both a Pulse Width Modulation (PWM) mode and a Pulse Frequency Modulation (PFM) mode. Under PWM mode, the duty cycle of the signal is held constant, while the frequency of the PWM signal varies depending on the output load. This mode offers the highest efficiency, but increases the noise output. Under PFM mode, the frequency of the signal is held constant while the duty cycle of the signal varies depending on the output load. This mode offers lower efficiency, but reduces output noise.The MCP164D-30I/MS provides a high degree of flexibility and efficiency. It is well suited for a variety of applications including microcontrollers, programmable logic controllers, industrial equipment, and telecommunications systems. This high performance DC/DC switching regulator offers high efficiency, low operating currents, and wide temperature range operation, making it an ideal choice for a wide range of applications.

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