MCP1702T-4702E/CB

Current - Output:	250mA
Base Part Number:	MCP1702
Supplier Device Package:	SOT-23A-3
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	--
PSRR:	44dB (100Hz)
Current - Quiescent (Iq):	5µA
Series:	--
Voltage Dropout (Max):	0.725V @ 250mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.7V
Voltage - Input (Max):	13.2V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The MCP1702T-4702E/CB is a low-dropout (LDO) voltage regulator developed by TDK Corporation that is designed to provide power management for a variety of industrial and consumer electronics applications. The LDO integrated circuit is specifically designed for use in desktop PCs, laptops, tablets and other mobile devices. This component is part of TDK\'s PMIC (power management IC) family, and its main purpose is to provide a steady and accurate output voltage for the power delivery system in the respective end electronic device.

Application Field

The MCP1702T-4702E/CB is a low-dropout (LDO) voltage regulator designed to provide power management in applications where low output voltage tolerances are required. Its wide input voltage range of 2.5V to 6.5V makes it an ideal solution for low-voltage power supplies, as well as low-voltage microcontrollers, digital signal processors, and peripherals. In addition, the device\'s low-noise operation enhances the overall performance of the power delivery system, making it a suitable component for noise-sensitive applications such as automotive, medical, and industrial. The device can also be used as a power-rail supervisor to improve system reliability and reduce component costs.

Working Principle

The MCP1702T-4702E/CB utilizes an adjustable bandgap reference, an internal error amplifier, and an internal high-current N-channel MOSFET in order to deliver an accurate and regulated output voltage. The device features current-limit and thermal-shutdown circuitry for protection against overloads and short circuits.The output voltage of the MCP1702T-4702E/CB is controlled by an adjustable resistor. The output voltage can be adjusted between 0.8V and 5.0V. The device also has an Enable signal input (EN) which is used to turn the IC on or off. When the enable signal is high, the MCP1702T-4702E/CB is enabled, otherwise it is disabled and the output voltage is pulled down to ground. Additionally, the device also has a discharge function which can be used to discharge the output capacitor when the device is shut down.

Conclusion

The MCP1702T-4702E/CB is a low-dropout (LDO) voltage regulator designed for use in a variety of industrial and consumer applications where power management accuracy is required. The device features an adjustable bandgap reference, an internal error amplifier, and an internal high-current N-channel MOSFET to ensure a steady and accurate output voltage. Its wide input voltage range of 2.5V to 6.5V makes it an ideal solution for low-voltage power supplies. Additionally, the device\'s built-in current-limit and thermal-shutdown circuitry provides necessary protection against overloads and short circuits. Finally, the MCP1702T-4702E/CB can also be used as a power-rail supervisor to reduce component costs and improve system reliability.

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