MCP1256T-E/UN

Voltage - Output (Min/Fixed):	3.3V
Base Part Number:	MCP1256
Supplier Device Package:	10-MSOP
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	650kHz
Current - Output:	100mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	3.6V
Voltage - Input (Min):	1.8V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MCP1256T-E/UN Application Field and Working Principle

The MCP1256T-E/UN is a high frequency step-down DC-DC switching regulator with an integrated power-on reset (POR) circuit. This device is suitable for a wide range of voltage sources and applications, and provides excellent efficiency, low power dissipation, fast transient response, and zero external components. The input voltage range is 1.25V to 5.625V and the output voltage can be adjusted for a variety of applications. The MCP1256T-E/UN is a member of Microchip\'s Power Management and Regulation (MCP) family of voltage regulators and DC-DC controllers. MCP devices are designed to control the supply of power to electronic components, such as microcontrollers and digital signal processors. MCP devices are engineered for a wide range of applications, and are used to reduce power consumption and improve system performance. The MCP1256T-E/UN is a synchronous buck DC-DC regulator which uses a high-frequency full bridge power stage to provide power conversion from the input voltage to the output voltage. The MCP1256T-E/UN has an integrated POR circuit which ensures power-on stability and a soft-start circuit to reduce inrush current on startup. In addition, the MCP1256T-E/UN has input voltage protection, as well as output overload and reverse current protection. The MCP1256T-E/UN has four operating modes: standby, power saving, light load, and automatic power saving. The standby mode keeps the MCP1256T-E/UN disabled. The power saving mode reduces the power consumption of the MCP1256T-E/UN and improves efficiency when the output current is less than 30mA. The light load mode provides constant output voltage whenever the output current is below 1mA. In this mode, the MCP1256T-E/UN has a selectable frequency. The automatic power saving mode allows the MCP1256T-E/UN to disable itself when the output current is below a certain threshold.The MCP1256T-E/UN is designed to provide a simple, cost-effective solution for applications ranging from battery-powered systems to distributed power systems. By operating at an extremely high frequency, the MCP1256T-E/UN can significantly reduce the size, weight, and cost of power conversion systems. In summary, the MCP1256T-E/UN is a synchronous buck DC-DC regulator with an integrated POR circuit, input voltage protection, output overload and reverse current protection, four operating modes, and low power consumption. The MCP1256T-E/UN provides reliable, cost-effective power conversion for a wide range of applications, from battery-powered systems to distributed power systems.

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