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The MCP1801 is a family of CMOS low dropout (LDO) voltage regulators that can deliver up to 150 mA of current while consuming only 25 μA of quiescent current (typical). The input operating range is specified from 2.0 V to 10.0 V, making it an ideal choice for two to six primary cell battery-powered applications, 9 V alkaline and one or two cell Li-Ion-powered applications. The MCP1801 is capable of delivering 100 mA with only 200 mV (typical) of input to output voltage differential (VOUT = 3.3 V). The output voltage tolerance of the MCP1801 at +25°C is typically ±0.4% with a maximum of ±2%. Line regulation is ±0.01% typical at +25°C. The LDO output is stable with a minimum of 1 μF of output capacitance. Ceramic, tantalum, or aluminum electrolytic capacitors can all be used for input and output. Overcurrent limit with current foldback provides short-circuit protection. A shutdown (SHDN) function allows the output to be enabled or disabled. When disabled, the MCP1801 draws only 0.01 μA of current
(typical). The MCP1801 is available in a SOT-23-5 package.

Accuracy	±2 %
Current, Supply	50 μA
Dimensions	3.10 x 1.80 x 1.30 mm
Dropout Voltage	250 mV
Height	0.051" (1.3mm)
Input Voltage	10 V
Length	0.122" (3.1mm)
Line Regulation	±0.2 %/V
Load Regulation	50 mV
Mounting Type	Surface Mount
Number of Outputs	1
Number of Pins	5
Operation Mode	Linear
Output Type	Fixed
Package Type	SOT-23
Temperature, Operating, Maximum	+85 °C
Temperature, Operating, Minimum	-40 °C
Temperature, Operating, Range	-40 to +85 °C
Type	Voltage Regulator
Voltage, Input Range	2 to 10 V
Voltage, Input, High Level	10 V
Voltage, Input, Low Level	2 V
Voltage, Output	3 V
Width	0.071" (1.8mm)
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Accuracy ±2 %  Microchip Technology Inc. Accuracy ±2 %  Low Dropout Voltage Regulators Accuracy ±2 %  Microchip Technology Inc. Low Dropout Voltage Regulators Accuracy ±2 %   Current, Supply 50 μA  Microchip Technology Inc. Current, Supply 50 μA  Low Dropout Voltage Regulators Current, Supply 50 μA  Microchip Technology Inc. Low Dropout Voltage Regulators Current, Supply 50 μA   Dimensions 3.10 x 1.80 x 1.30 mm  Microchip Technology Inc. Dimensions 3.10 x 1.80 x 1.30 mm  Low Dropout Voltage Regulators Dimensions 3.10 x 1.80 x 1.30 mm  Microchip Technology Inc. Low Dropout Voltage Regulators Dimensions 3.10 x 1.80 x 1.30 mm   Dropout Voltage 250 mV  Microchip Technology Inc. Dropout Voltage 250 mV  Low Dropout Voltage Regulators Dropout Voltage 250 mV  Microchip Technology Inc. Low Dropout Voltage Regulators Dropout Voltage 250 mV   Height 0.051" (1.3mm)  Microchip Technology Inc. Height 0.051" (1.3mm)  Low Dropout Voltage Regulators Height 0.051" (1.3mm)  Microchip Technology Inc. Low Dropout Voltage Regulators Height 0.051" (1.3mm)   Input Voltage 10 V  Microchip Technology Inc. Input Voltage 10 V  Low Dropout Voltage Regulators Input Voltage 10 V  Microchip Technology Inc. Low Dropout Voltage Regulators Input Voltage 10 V   Length 0.122" (3.1mm)  Microchip Technology Inc. Length 0.122" (3.1mm)  Low Dropout Voltage Regulators Length 0.122" (3.1mm)  Microchip Technology Inc. Low Dropout Voltage Regulators Length 0.122" (3.1mm)   Line Regulation ±0.2 %/V  Microchip Technology Inc. Line Regulation ±0.2 %/V  Low Dropout Voltage Regulators Line Regulation ±0.2 %/V  Microchip Technology Inc. Low Dropout Voltage Regulators Line Regulation ±0.2 %/V   Load Regulation 50 mV  Microchip Technology Inc. Load Regulation 50 mV  Low Dropout Voltage Regulators Load Regulation 50 mV  Microchip Technology Inc. Low Dropout Voltage Regulators Load Regulation 50 mV   Mounting Type Surface Mount  Microchip Technology Inc. Mounting Type Surface Mount  Low Dropout Voltage Regulators Mounting Type Surface Mount  Microchip Technology Inc. Low Dropout Voltage Regulators Mounting Type Surface Mount   Number of Outputs 1  Microchip Technology Inc. Number of Outputs 1  Low Dropout Voltage Regulators Number of Outputs 1  Microchip Technology Inc. Low Dropout Voltage Regulators Number of Outputs 1   Number of Pins 5  Microchip Technology Inc. Number of Pins 5  Low Dropout Voltage Regulators Number of Pins 5  Microchip Technology Inc. Low Dropout Voltage Regulators Number of Pins 5   Operation Mode Linear  Microchip Technology Inc. Operation Mode Linear  Low Dropout Voltage Regulators Operation Mode Linear  Microchip Technology Inc. Low Dropout Voltage Regulators Operation Mode Linear   Output Type Fixed  Microchip Technology Inc. Output Type Fixed  Low Dropout Voltage Regulators Output Type Fixed  Microchip Technology Inc. Low Dropout Voltage Regulators Output Type Fixed   Package Type SOT-23  Microchip Technology Inc. Package Type SOT-23  Low Dropout Voltage Regulators Package Type SOT-23  Microchip Technology Inc. Low Dropout Voltage Regulators Package Type SOT-23   Temperature, Operating, Maximum +85 °C  Microchip Technology Inc. Temperature, Operating, Maximum +85 °C  Low Dropout Voltage Regulators Temperature, Operating, Maximum +85 °C  Microchip Technology Inc. Low Dropout Voltage Regulators Temperature, Operating, Maximum +85 °C   Temperature, Operating, Minimum -40 °C  Microchip Technology Inc. Temperature, Operating, Minimum -40 °C  Low Dropout Voltage Regulators Temperature, Operating, Minimum -40 °C  Microchip Technology Inc. Low Dropout Voltage Regulators Temperature, Operating, Minimum -40 °C   Temperature, Operating, Range -40 to +85 °C  Microchip Technology Inc. Temperature, Operating, Range -40 to +85 °C  Low Dropout Voltage Regulators Temperature, Operating, Range -40 to +85 °C  Microchip Technology Inc. Low Dropout Voltage Regulators Temperature, Operating, Range -40 to +85 °C   Type Voltage Regulator  Microchip Technology Inc. Type Voltage Regulator  Low Dropout Voltage Regulators Type Voltage Regulator  Microchip Technology Inc. Low Dropout Voltage Regulators Type Voltage Regulator   Voltage, Input Range 2 to 10 V  Microchip Technology Inc. Voltage, Input Range 2 to 10 V  Low Dropout Voltage Regulators Voltage, Input Range 2 to 10 V  Microchip Technology Inc. Low Dropout Voltage Regulators Voltage, Input Range 2 to 10 V   Voltage, Input, High Level 10 V  Microchip Technology Inc. Voltage, Input, High Level 10 V  Low Dropout Voltage Regulators Voltage, Input, High Level 10 V  Microchip Technology Inc. Low Dropout Voltage Regulators Voltage, Input, High Level 10 V   Voltage, Input, Low Level 2 V  Microchip Technology Inc. Voltage, Input, Low Level 2 V  Low Dropout Voltage Regulators Voltage, Input, Low Level 2 V  Microchip Technology Inc. Low Dropout Voltage Regulators Voltage, Input, Low Level 2 V   Voltage, Output 3 V  Microchip Technology Inc. Voltage, Output 3 V  Low Dropout Voltage Regulators Voltage, Output 3 V  Microchip Technology Inc. Low Dropout Voltage Regulators Voltage, Output 3 V   Width 0.071" (1.8mm)  Microchip Technology Inc. Width 0.071" (1.8mm)  Low Dropout Voltage Regulators Width 0.071" (1.8mm)  Microchip Technology Inc. Low Dropout Voltage Regulators Width 0.071" (1.8mm)