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

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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)	Current - Supply (Max)	PSRR	Control Features	Protection Features	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package

MIC5504-3.3YMT-TR IC REG LINEAR 3.3V 300MA 4TDFN Microchip Technology	26,881 In Stock	1 : ¥1.81000 Cut Tape (CT) 5,000 : ¥1.31350 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	5.5V	3.3V	-	0.38V @ 300mA	300mA	55 µA	65 µA	60dB (1kHz)	Enable	Over Current, Over Temperature	-40°C ~ 125°C	Surface Mount	4-UDFN Exposed Pad	4-TDFN (1x1)
LP2981-33DBVR IC REG LINEAR 3.3V 100MA SOT23-5 Texas Instruments	78,182 In Stock	1 : ¥3.12000 Cut Tape (CT) 3,000 : ¥1.24166 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	16V	3.3V	-	0.37V @ 100mA	100mA	95 µA	1.7 mA	63dB (1kHz)	Enable	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C	Surface Mount	SC-74A, SOT-753	SOT-23-5

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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.