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
LM317DCYR IC REG LIN POS ADJ 1.5A SOT223-4 Texas Instruments	12,624 In Stock	1 : $1.02000 Cut Tape (CT) 2,500 : $0.46144 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Adjustable	1	40V	1.25V	37V	-	1.5A	10 mA	64dB ~ 57dB (120Hz)	-	Over Current, Over Temperature, Short Circuit	0°C ~ 125°C	Surface Mount	TO-261-4, TO-261AA	SOT-223-4
LM340MPX-5.0/NOPB IC REG LINEAR 5V 1.5A SOT-223-4 Texas Instruments	2,912 In Stock	1 : $2.19000 Cut Tape (CT) 2,000 : $1.08771 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	35V	5V	-	2V @ 1A	1.5A	8 mA	70dB (120Hz)	-	Over Current, Short Circuit	0°C ~ 125°C	Surface Mount	TO-261-4, TO-261AA	SOT-223-4
LM337IMPX/NOPB IC REG LIN NEG ADJ 1.5A SOT223-4 Texas Instruments	9,660 In Stock	1 : $2.85000 Cut Tape (CT) 2,000 : $1.44922 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Negative	Adjustable	1	-40V	-1.2V	-37V	-	1.5A	-	60dB (120Hz)	-	Over Temperature, Short Circuit	-40°C ~ 125°C	Surface Mount	TO-261-4, TO-261AA	SOT-223-4

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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.