MCP1754T-5002E/DC

Current - Output:	150mA
Base Part Number:	MCP1754
Supplier Device Package:	SOT-223
Package / Case:	SOT-223-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
Control Features:	Power Good, Shutdown
PSRR:	72dB (1kHz)
Current - Supply (Max):	250µA
Current - Quiescent (Iq):	90µA
Series:	--
Voltage Dropout (Max):	0.5V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MCP1754T-5002E/DC Application Field and Working Principle

MCP1754T-5002E/DC is a low-power, low dropout, and high-efficiency linear voltage regulator (LDO) produced by Microchip Technology Inc. It offers precision voltage regulation with output current and power requirements. This product offers high-efficiency operation which helps conserve system power by eliminating wasted energy during power conversion.The device integrates a constant-current and constant-voltage linear regulator with a high-side current sense amplifier, enabling precise current regulation and provides accurate output current limiting. The device offers precise current reporting and programmable current limit, as well as short-circuit, over-temperature, and over-voltage protection for a variety of applications.

Application Field

MCP1754T-5002E/DC is ideal for a variety of low-power, low-dropout and high-efficiency applications, such as automotive, consumer electronics, communications and networking, industrial, medical, and instrumentation.The device is designed to be used as a bus-powered system but is also suitable for use with voltage rails as small as 1.8 V and below. Additionally, since the regulator can produce accurate output current levels, it can be used in high-side current sense applications.The LDO includes an output voltage tracking feature that allows the output voltage to track an external reference voltage, ranging from 0.8 V to 4.5 V. The device also features a programmable current limit that can be set to 0.1 mA to 500 mA while maintaining its low quiescent current of only 4 µA.

Working Principle

The MCP1754T-5002E/DC voltage regulator is a linear voltage regulator with a 3-terminal architecture. It consists of a control circuit, power transistors, compensation circuitry, and output resistor.When the input voltage is greater than the output voltage, a voltage drop occurs across the output resistor, also called dropout voltage. The resulting voltage drop is sensed by the control circuit, which then adjusts the power transistor\'s current to maintain the correct output voltage.At the same time, the control circuitry adjusts the feedback voltage to compensate for any changes in the output voltage due to load variations. This ensures that the output voltage remains constant regardless of the load current.The device also includes a programmable current limit feature that allows the user to set the maximum current that can be drawn from the LDO. If the current limit is exceeded, the LDO will shut off and the output voltage will drop to nearly 0 V.The MCP1754T-5002E/DC has a number of advantages over its competitors, including low power consumption, high efficiency, and no pressure on components. Additionally, the device includes a wide range of safety features, including over-voltage, over-temperature, and short-circuit protection, making it suitable for a variety of applications.

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