MCP1790T-3002E/DB

Current - Output:	70mA
Base Part Number:	MCP1790
Supplier Device Package:	SOT-223-3
Package / Case:	TO-261-4, TO-261AA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	--
PSRR:	90dB ~ 80dB (100Hz ~ 1kHz)
Current - Supply (Max):	210µA
Current - Quiescent (Iq):	130µA
Series:	--
Voltage Dropout (Max):	1.3V @ 70mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	30V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Application Field and Working Principle of MCP1790T-3002E/DB

The MCP1790T-3002E/DB is a linear voltage regulator from Microchip Technology. It is a low dropout (LDO) linear regulator that is designed to operate from an input voltage down to 1.8V and provide regulator output voltage up to 24V with a maximum output current of 500mA. This regulator is ideal for use in a wide variety of battery-driven applications, including those in the automotive, handheld, and industrial sectors.Due to its high power efficiency, the MCP1790T-3002E/DB is widely used in notebook and desktop PCs, industrial automation systems, white goods, and other products that require long-term reliable operation. The regulator is highly integrated with a low power sleep mode and fast transient response, making it suitable for low-power applications. The regulator also has thermal and short-circuit protection for extra safety.The MCP1790T-3002E/DB uses a conventional linear regulating circuit to reduce its input voltage to the desired output voltage. A voltage divider consisting of two resistors, an input limiting resistor and a feedback resistor, is used to set the output voltage. The voltage at the feedback node of this voltage divider is compared to the reference voltage of the regulator, which is internally preset. Any differences between these two voltages are amplified by an error amplifier, and the amplified differences are used to drive the pass element. The pass element allows current to flow through it, which adjusts the output voltage, limiting it to the value desired.The low dropout feature of the MCP1790T-3002E/DB is a result of the linear voltage regulating circuit. This allows the regulator to have better power efficiency than switching regulators since it does not require a large amount of current to operate. The regulator implements voltage-tracking circuitry to insure that the output voltage remains within tolerance and also offers a wide array of external components for output voltage adjustment.In summary, the MCP1790T-3002E/DB from Microchip technology is a linear voltage regulator with a low dropout feature and a wide input voltage range of 1.8V to 24V. It is ideal for low-power applications and provides excellent thermal, short-circuit and output voltage tracking protection. It provides 500mA of output current and is suitable for use in many applications, including notebook and desktop PCs, industrial automation systems, and white goods.

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