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	Mounting Type	Package / Case	Supplier Device Package

L78L33ACUTR IC REG LINEAR 3.3V 100MA SOT89-3 STMicroelectronics	56,227 In Stock	1 : ¥3.57000 Cut Tape (CT) 2,500 : ¥1.24949 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	30V	3.3V	-	-	100mA	5.5 mA	6 mA	49dB (120Hz)	-	Over Current, Over Temperature, Short Circuit	0°C ~ 125°C	Surface Mount	TO-243AA	SOT-89-3
AZ1117CR-3.3TRG1 IC REG LINEAR 3.3V 1A SOT89 Diodes Incorporated	55,139 In Stock 25,000 Factory	1 : ¥3.57000 Cut Tape (CT) 1,000 : ¥0.88434 Tape & Reel (TR)	AZ1117C	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	15V	3.3V	-	-	1A	6 mA	-	70dB (120Hz)	-	Thermal Shutdown	-20°C ~ 125°C (TJ)	Surface Mount	TO-243AA	SOT-89-3
LM2937IMPX-12/NOPB IC REG LINEAR 12V 400MA SOT223-4 Texas Instruments	778 In Stock	1 : ¥16.66000 Cut Tape (CT) 2,000 : ¥7.62682 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	26V	12V	-	1V @ 500mA	500mA	10 mA	20 mA	-	-	Mirror-Image Insertion, Over Temperature, Short Circuit, Transient Voltage	-40°C ~ 85°C (TJ)	Surface Mount	TO-261-4, TO-261AA	SOT-223-4
NJW4184U2-33A-TE2 IC REG LINEAR 3.3V 300MA SOT89-5 Nisshinbo Micro Devices Inc.	2,848 In Stock	1 : ¥14.96000 Cut Tape (CT) 1,000 : ¥7.34523 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	35V	3.3V	-	0.1V @ 100mA	300mA	12 µA	-	40dB (1kHz)	Enable	Over Current	-40°C ~ 85°C	Surface Mount	SOT-89-5/6	SOT-89-5
AP7381-33Y-13 IC REG LINEAR 3.3V 150MA SOT89 Diodes Incorporated	10,299 In Stock	1 : ¥4.17000 Cut Tape (CT) 2,500 : ¥0.87474 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Not For New Designs	Positive	Fixed	1	40V	3.3V	-	1V @ 100mA	150mA	2.5 µA	25 µA	-	-	Current Limit, Thermal Shutdown	-40°C ~ 125°C (TJ)	Surface Mount	TO-243AA	SOT-89-3
XC6203P332PR-G IC REG LINEAR 3.3V 400MA SOT89 Torex Semiconductor Ltd	0 In Stock Check Lead Time	1 : ¥10.80000 Cut Tape (CT) 1,000 : ¥2.92607 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	8V	3.3V	-	0.42V @ 200mA	400mA	16 µA	-	-	-	Over Current	-40°C ~ 85°C (TA)	Surface Mount	TO-243AA	SOT-89
NJW4104U3-33B-TE1 IC REG LINEAR 3.3V 200MA SOT89-3 Nisshinbo Micro Devices Inc.	0 In Stock Check Lead Time	1,000 : ¥5.02272 Tape & Reel (TR)	-	Tape & Reel (TR)	Active	Positive	Fixed	1	40V	3.3V	-	-	200mA	12 µA	-	41dB (1kHz)	Enable	Over Current, Over Temperature	-40°C ~ 125°C	Surface Mount	TO-243AA	SOT-89-3

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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.