MCP1791T-5002E/DC

Current - Output:	70mA
Base Part Number:	MCP1791
Supplier Device Package:	SOT-223-5
Package / Case:	SOT-223-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	Enable, Power Good
PSRR:	90dB ~ 75dB (100Hz ~ 1kHz)
Current - Supply (Max):	210µA
Current - Quiescent (Iq):	130µA
Series:	--
Voltage Dropout (Max):	1.3V @ 70mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
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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Introduction to the MCP1791T-5002E/DC

The MCP1791T-5002E/DC is a low dropout linear voltage regulator manufactured by Microchip Technology. This device consists of two external components, an input capacitor and an output capacitor, which is used to regulate the output voltage. The MCP1791T-5020E/DC is offered in an ultra-small 2-ball WDFN package, making it well suited for space-constrained portable applications. The MCP1791T-5002E/DC has a maximum input voltage of 10V, output current of 500mA and a dropout voltage of 660mV.

MCP1791T-5002E/DC Application Field and Working Principle

The MCP1791T-5002E/DC is widely used in portable electronics, as its small package size, low dropout and high output current make it well suited for these applications. It is also used in automotive, industrial and medical applications which require an extremely low input voltage.As a linear regulator, the MCP1791T-5002E/DC operates by creating a constant output voltage by tracking the input voltage and then dropping the excess voltage across a series circuit. When the input voltage exceeds the set output voltage, the regulator works to maintain the output voltage. The actual dropout voltage varies depending on the load current and input voltage.The MCP1791T-5002E/DC is designed to offer very good transient response, high output current, low voltage noise and a wide operating temperature range. It also offers protection from over-voltage, over-current and thermal limits.The MCP1791T-5002E/DC operates at a very low quiescent current of 5μA, thus making it well suited for battery-powered applications. The regulator is also capable of operating at an input voltage below the expected minimum output voltage of 2.5V, and offers built-in reverse-current protection.Lastly, the MCP1791T-5002E/DC offers good output voltage accuracy, with a typical tolerance of 1%. It also has good load and line regulation characteristics, with a typical line regulation of 0.12% and a typical load regulation of 0.1%.

Conclusion

The MCP1791T-5002E/DC is a low dropout linear regulator offering excellent performance and features in a small, space-saving package. It features protection from over-voltage, over-current and thermal limits, as well as excellent transient response. Its low quiescent current and reverse-current protection make it well suited for battery powered applications. Additionally, the device offers good output voltage accuracy, with a typical tolerance of 1%, as well as good line and load regulation characteristics, ensuring a stable output. All in all, this makes the MCP1791T-5002E/DC a great choice for applications where accuracy, stability and low power consumption are required.

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