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

MCP1824ST-3302E/DB IC REG LIN 3.3V 300MA SOT223-3 Microchip Technology	22,452 In Stock	1 : ¥5.25000 Cut Tape (CT) 4,000 : ¥4.02283 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	6V	3.3V	-	0.32V @ 300mA	300mA	220 µA	-	55dB (100Hz)	-	Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)	-40°C ~ 125°C	-	-	Surface Mount	TO-261-4, TO-261AA	SOT-223-3
MCP1703-5002E/DB IC REG LINEAR 5V 250MA SOT223-3 Microchip Technology	13,902 In Stock	1 : ¥7.14000 Tube	-	Tube	Active	Positive	Fixed	1	16V	5V	-	0.65V @ 250mA	250mA	5 µA	-	44dB (100Hz)	-	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C	-	-	Surface Mount	TO-261-4, TO-261AA	SOT-223-3
LD1117AS33TR IC REG LINEAR 3.3V 1A SOT223 STMicroelectronics	17,188 In Stock	1 : ¥7.31000 Cut Tape (CT) 2,500 : ¥3.10254 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	15V	3.3V	-	1.3V @ 1A	1A	10 mA	-	75dB (120Hz)	-	Over Current, Over Temperature	0°C ~ 125°C	-	-	Surface Mount	TO-261-4, TO-261AA	SOT-223
MIC2920A-5.0WS-TR IC REG LINEAR 5V 400MA SOT223-3 Microchip Technology	20,518 In Stock	1 : ¥15.13000 Cut Tape (CT) 2,500 : ¥11.47668 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	26V	5V	-	0.75V @ 400mA	400mA	300 µA	12 mA	-	-	Load Dump, Over Current, Reverse Polarity	-40°C ~ 125°C	-	-	Surface Mount	TO-261-4, TO-261AA	SOT-223-3
LT1521CST-5#PBF IC REG LINEAR 5V 300MA SOT223-3 Analog Devices Inc.	1,845 In Stock	1 : ¥54.83000 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	0°C ~ 125°C	-	-	Surface Mount	TO-261-4, TO-261AA	SOT-223-3
LT1121IST-5#PBF IC REG LINEAR 5V 150MA SOT223-3 Analog Devices Inc.	513 In Stock	1 : ¥63.76000 Tube	-	Tube	Active	Positive	Fixed	1	30V	5V	-	0.7V @ 150mA	150mA	50 µA	14 mA	58dB (120Hz)	Enable	Over Temperature, Reverse Polarity	-40°C ~ 125°C	-	-	Surface Mount	TO-261-4, TO-261AA	SOT-223-3
MCP1755ST-5002E/MC IC REG LINEAR 5V 300MA 8DFN Microchip Technology	2,960 In Stock	1 : ¥6.32000 Cut Tape (CT) 3,300 : ¥5.43900 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	16V	5V	-	0.5V @ 300mA	300mA	100 µA	400 µA	80dB (1kHz)	-	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C	-	-	Surface Mount	8-VFDFN Exposed Pad	8-DFN (2x3)
TPS7B8833QKVURQ1 AUTOMOTIVE 500-MA, 40-V, LOW-DRO Texas Instruments	14,426 In Stock	1 : ¥23.89000 Cut Tape (CT) 2,500 : ¥10.03144 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	40V	3.3V	-	0.575V @ 500mA	500mA	26 µA	-	70dB (1kHz)	Enable	Over Current, Over Temperature, UVLO	-40°C ~ 125°C	Automotive	AEC-Q100	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.