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	PSRR	Control Features	Protection Features	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package

LM3940IMP-3.3/NOPB IC REG LINEAR 3.3V 1A SOT223-4 Texas Instruments	9,068 In Stock	1 : ¥16.15000 Cut Tape (CT) 1,000 : ¥7.94311 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	7.5V	3.3V	-	0.2V @ 100mA	1A	-	-	Over Temperature, Short Circuit	-40°C ~ 125°C	Surface Mount	TO-261-4, TO-261AA	SOT-223-4
MIC29300-5.0WU IC REG LINEAR 5V 3A TO263-3 Microchip Technology	636 In Stock	1 : ¥38.42000 Tube	-	Tube	Active	Positive	Fixed	1	26V	5V	-	0.6V @ 3A	3A	-	-	Over Current, Over Temperature, Reverse Polarity, Transient Voltage	-40°C ~ 125°C	Surface Mount	TO-263-4, D2PAK (3 Leads + Tab), TO-263AA	TO-263-3

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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.