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
	LD1117S33CTR IC REG LINEAR 3.3V 800MA SOT223 STMicroelectronics	17,282 In Stock	1 : $0.32000 Cut Tape (CT) 2,500 : $0.13632 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	15V	3.3V	-	1.3V @ 800mA	800mA	10 mA	75dB (120Hz)	-	Over Current, Over Temperature	-40°C ~ 125°C	Surface Mount	TO-261-4, TO-261AA	SOT-223
	AMS1117-3.3 IC LDO REG 3.3V 1A SOT223 UMW	8,902 In Stock	1 : $0.68000 Cut Tape (CT) 2,500 : $0.14631 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT)	Active	Positive	Fixed	1	12V	3.3V	-	1.3V @ 1A	1A	10 mA	75dB (120Hz)	Current Limit	Over Temperature	-40°C ~ 125°C (TJ)	Surface Mount	TO-261-4, TO-261AA	SOT-223-3L

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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.