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	Mounting Type	Package / Case	Supplier Device Package

LM317MDCYR IC REG LIN POS ADJ 500MA SOT223 Texas Instruments	12,640 In Stock	1 : ¥5.58000 Cut Tape (CT) 2,500 : ¥2.16405 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Adjustable	1	40V	1.25V	37V	-	500mA	10 mA	-	80dB ~ 65dB (120Hz)	-	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C (TJ)	Surface Mount	TO-261-4, TO-261AA	SOT-223-4
LM317DCY IC REG LIN POS ADJ 1.5A SOT223-4 Texas Instruments	5,316 In Stock	1 : ¥11.00000 Tube	-	Tube	Active	Positive	Adjustable	1	40V	1.25V	37V	-	1.5A	10 mA	-	64dB ~ 57dB (120Hz)	-	Over Current, Over Temperature, Short Circuit	0°C ~ 125°C	Surface Mount	TO-261-4, TO-261AA	SOT-223-4
LDL212DR IC REG LINEAR POS ADJ 1.2A 8SO STMicroelectronics	12,178 In Stock	1 : ¥5.42000 Cut Tape (CT) 2,500 : ¥1.90976 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Adjustable	1	18V	1.18V	17.4V	0.6V @ 1.2A	1.2A	380 µA	380 µA	87dB ~ 50dB (120Hz ~ 100kHz)	Enable	Over Current, Over Temperature, Under Voltage Lockout (UVLO)	-40°C ~ 125°C (TJ)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SO
R1100D121C-TR-F IC REG LIN 1.2V 35MA SON1408-3 Nisshinbo Micro Devices Inc.	22,480 In Stock	1 : ¥5.09000 Cut Tape (CT) 9,000 : ¥1.68316 Tape & Reel (TR)	R1100D	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	6V	1.2V	-	0.6V @ 35mA	35mA	-	3 µA	-	-	Over Current, Short Circuit	-40°C ~ 85°C	Surface Mount	SOT-623F	SON1408-3

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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.