MCP1631T-E/STVAO

Voltage - Supply (Vcc/Vdd):	3.5 V ~ 16 V
Supplier Device Package:	20-TSSOP
Package / Case:	20-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Enable, Frequency Control, Ramp
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	--
Frequency - Switching:	--
Series:	Automotive, AEC-Q100
Output Phases:	1
Number of Outputs:	1
Topology:	Sepic
Output Configuration:	Positive
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MCP1631T-E/STVAO Application Field and Working Principle

The MCP1631T-E/STVAO is a non-isolated DC-DC synchronous buck converter designed for a variety of applications including motor control, communications, industrial and medical electronics. It is part of a portfolio of DC-DC controllers and gate drivers from Microchip Technology, a recognized leader in the power management IC industry.The MCP1631T-E/STVAO device provides several features, including a current or voltage mode architecture, protection against overvoltage, loop compensation, programmable soft-start/soft-stop, and PWM frequency control. It offers high efficiency operation across a wide input voltage range, low operations current and low component count. Additionally, it provides high DC output accuracy without trimming, making it well suited for various applications. It also features an internal synchronization of buck switch node to an externally applied\'s clock signal. This can be enabled by an internal synchronization resistor.

Application Field

The MCP1631T-E/STVAO is suitable for a variety of applications including motor control, industrial and medical electronics. It offers a wide range of advantages including cost, size, performance and functionality. In particular, it supports a variety of power supervision and shutdown features. It also provides accurate, stable control for low bandwidth, low-power applications. Additionally, this product can provide improved system performance in terms of efficiency, protection features and flexibility.

Working Principle

The MCP1631T-E/STVAO is a DC-DC synchronous buck converter capable of handling a wide input voltage range. This device provides an integrated synchronous gate driver and a current or voltage mode PWM control architecture. The current mode PWM control architecture ensures the device maintains output accuracy without trimming. This control architecture uses a comparator and an internal voltage reference to generate an error voltage, which is converted to a current by a transconductance amplifier (OTA). This current is then compared to the output inductor current sensed by a sense resistor. The output of this comparison is used to adjust the duty cycle of the converter. The user can adjust the transconductance gain and the soft-start duration of the device through appropriate external components.The MCP1631T-E/STVAO also provides extensive protection features such as over voltage protection, under voltage protection, thermal shutdown and short-circuit protection. It is able to adjust the frequency range and provides good transient response. Additionally, the device has an internal comparator and a frequency adjustment pin that can be used to synchronize the output PWM frequency to an external clock. The device supports a wide range of input and output voltage ranges, making it suitable for a variety of applications.

Conclusion

The MCP1631T-E/STVAO is a highly efficient, cost effective DC-DC synchronous buck converter from Microchip Technology. It features a current or voltage mode architecture, protection against overvoltage, programmable soft-start/soft-stop, high DC output accuracy and PWM frequency control. This device also has extensive protection features to prevent any potential damage to your system. Additionally, it is able to synchronize the output PWM frequency to an external clock and provides an adjustable frequency range. This makes it suitable for a range of applications, including motor control, communications, industrial and medical electronics.

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