Voltage Regulators - Linear, Low Drop Out (LDO) Regulators | Power Management (PMIC) | Electronic Components Distributor DigiKey

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	Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Output Configuration	Output Type	Number of Regulators	Voltage - Input (Max)	Voltage - Output (Min/Fixed)	Voltage - Output (Max)	Voltage Dropout (Max)	Current - Output	Current - Quiescent (Iq)	PSRR	Control Features	Protection Features	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
	NCP1117ST50T3G IC REG LINEAR 5V 1A SOT-223 onsemi	20,279 In Stock	1 : $1.83000 Cut Tape (CT) 4,000 : $0.39913 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	20V	5V	-	1.2V @ 800mA	1A	10 mA	61dB (120Hz)	-	Over Current, Over Temperature	0°C ~ 125°C	Surface Mount	TO-261-4, TO-261AA	SOT-223
	MAX1857EUA47+ IC REG LIN POS ADJ 8-UMAX/USOP Analog Devices Inc./Maxim Integrated	431 In Stock 1,650 Factory	1 : $5.14000 Tube	-	Tube	Active	Positive	Adjustable (Fixed)	1	5.5V	1.25V (4.75V)	5.5V	0.175V @ 500mA	500mA	250 µA	-	Enable, Reset	Over Current, Over Temperature, Short Circuit	-40°C ~ 85°C (TA)	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-uMAX/uSOP

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Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Linear voltage regulators, including LDO (Low Drop Out) types, are used to provide a stable output voltage that is nominally invariant with respect to changes in load current, input voltage, or environmental factors. Their operating principle requires that the input voltage be maintained above the desired output voltage by some minimum amount, and function on the basis of converting whatever excess voltage is present at the input to heat. While this renders them less efficient than switch-mode voltage regulators for most applications, they are often better suited for applications with high sensitivity to noise.