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	68,128 In Stock	1 : ¥5.78000 Cut Tape (CT) 2,500 : ¥2.24099 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
LP3853ES-3.3/NOPB IC REG LIN 3.3V 3A DDPAK/TO263-5 Texas Instruments	135 In Stock	1 : ¥80.21000 Tube	-	Tube	Active	Positive	Fixed	1	7V	3.3V	-	0.6V @ 3A	3A	4 mA	10 mA	73dB ~ 57dB (120Hz)	Enable	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C	Surface Mount	TO-263-6, D2PAK (5 Leads + Tab), TO-263BA	TO-263 (DDPAK-5)

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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.