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

LM3940IMPX-3.3/NOPB IC REG LINEAR 3.3V 1A SOT223-4 Texas Instruments	6,723 In Stock	1 : ¥14.79000 Cut Tape (CT) 2,000 : ¥6.78100 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
NCP167BMX330TBG IC REG LINEAR 3.3V 700MA 4XDFN onsemi	178,889 In Stock 40,000 Factory	1 : ¥3.49000 Cut Tape (CT) 3,000 : ¥1.40378 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	5.5V	3.3V	-	0.29V @ 700mA	700mA	18 µA	85dB ~ 63dB (100Hz ~ 100kHz)	Enable	Over Current, Over Temperature, Soft Start	-40°C ~ 125°C (TJ)	Surface Mount	4-XDFN Exposed Pad	4-XDFN (1x1)

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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.