MCP1632-BAE/MC

Frequency - Switching:	600kHz
Base Part Number:	MCP1632
Supplier Device Package:	8-DFN (2x3)
Package / Case:	8-VFDFN Exposed Pad
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Enable
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	85%
Series:	--
Voltage - Supply (Vcc/Vdd):	3 V ~ 5.5 V
Output Phases:	1
Number of Outputs:	1
Topology:	Boost, Cuk, Flyback, SEPIC
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

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Introduction to MCP1632-BAE/MC

The MCP1632-BAE/MC is a DC/DC switching controller designed to regulate the output of a Buck converter with an adjustable output voltage. The device provides a high efficiency, low noise power solution ideal for any application that requires a low voltage supply. This Voltage Regulator is also optimized for battery operation, allowing it to maintain a stable output voltage for long life even under varying battery loads.

Application Field of MCP1632-BAE/MC

The MCP1632-BAE/MC is ideal for many low voltage applications, including cellular phones and other portable devices, computers, and industrial applications, as well as portable or embedded system designs. The device is also well suited for applications requiring a low noise output and high efficiency. In addition, the MCP1632-BAE/MC is particularly suitable as a power supply for DSPs and microcontrollers, as it can provide power with a minimum dropout voltage and very low quiescent current. This allows the device to be used in low power applications without adding additional components to reduce ripple.

Working Principle of the MCP1632-BAE/MC

The MCP1632-BAE/MC is a buck regulator whose working principle is based off of a pulse width modulation (PWM) technique. The device uses a constant frequency PWM step-down circuit with a low-side N-channel MOSFET. The PWM circuit is optimized to minimize output voltage ripple and to ensure high efficiency.The output voltage of the regulator is set by the voltage at the feed-forward pin, which is fed back to the PWM comparator. When a voltage applied to the feed-forward pin falls below the output voltage of the regulator, the comparator turns on the low-side MOSFET for a certain period of time. This period of time is referred to as the “on time” of the regulator. When the “on time” ends, the low-side MOSFET is turned off and the PWM circuit goes into the “off time” cycle. When the voltage at the output exceeds the voltage at the feed-forward pin, the comparator turns off the low-side MOSFET and the PWM circuit goes into the “off time” cycle. During this cycle, the output voltage is regulated by increasing or decreasing the voltage at the feed-forward pin. This will in turn decrease or increase the “on time” of the cycle and thus regulate the output voltage.

Conclusion

The MCP1632-BAE/MC is a powerful DC/DC switching controller designed to regulate the output of a Buck converter with an adjustable output voltage. The device utilizes a PWM technique with a low-side N-channel MOSFET, providing a highly efficient and low noise power solution ideal for a variety of low-voltage applications. The device is well-suited for use in power supplies for DSPs and microcontrollers, as well as cellular phones, computers, and portable devices.

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