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	Grade	Qualification	Mounting Type	Package / Case	Supplier Device Package

TPS70933QDBVRQ1 IC REG LINEAR 3.3V 150MA SOT23-5 Texas Instruments	9,675 In Stock	1 : ¥13.35000 Cut Tape (CT) 3,000 : ¥6.12025 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	30V	3.3V	-	1.54V @ 150mA	150mA	2.05 µA	350 µA	80dB ~ 52dB (10Hz ~ 1kHz)	Enable	Over Current, Over Temperature, Reverse Current, Under Voltage Lockout (UVLO)	-40°C ~ 125°C	Automotive	AEC-Q100	Surface Mount	SC-74A, SOT-753	SOT-23-5
MIC5319-3.3YML-TR IC REG LINEAR 3.3V 500MA 6TMLF Microchip Technology	21,042 In Stock	1 : ¥15.52000 Cut Tape (CT) 5,000 : ¥11.74010 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	5.5V	3.3V	-	0.4V @ 500mA	500mA	150 µA	-	70dB ~ 60dB (1kHz ~ 10kHz)	Enable	Over Current, Over Temperature	-40°C ~ 125°C	-	-	Surface Mount	6-VDFN Exposed Pad, 6-TMLF®	6-TMLF® (2x2)
LT1521IS8-5#PBF IC REG LINEAR 5V 300MA 8SOIC Analog Devices Inc.	200 In Stock	1 : ¥68.26000 Tube	-	Tube	Active	Positive	Fixed	1	20V	5V	-	0.75V @ 300mA	300mA	25 µA	12 mA	58dB (120Hz)	Enable	Over Current, Over Temperature, Reverse Polarity	-40°C ~ 125°C	-	-	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SO
LM317AMDT IC REG LIN POS ADJ 1.5A TO252-3 Texas Instruments	0 In Stock	825 : ¥17.41730 Tube	-	Tube	Obsolete	Positive	Adjustable	1	40V	1.25V	37V	-	1.5A	10 mA	-	80dB ~ 65dB (120Hz)	-	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C	-	-	Surface Mount	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-252-3

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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.