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

L7809ABD2T-TR IC REG LINEAR 9V 1.5A D2PAK STMicroelectronics	2,191 In Stock	1 : ¥9.03000 Cut Tape (CT) 1,000 : ¥4.10572 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	35V	9V	-	2V @ 1A (Typ)	1.5A	6 mA	-	61dB (120Hz)	-	Over Temperature, Short Circuit	-40°C ~ 125°C	Surface Mount	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	D2PAK
ADP1740ACPZ-1.8-R7 IC REG LINEAR 1.8V 2A 16LFCSP Analog Devices Inc.	2,690 In Stock	1 : ¥38.26000 Cut Tape (CT) 1,500 : ¥20.19481 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Positive	Fixed	1	3.6V	1.8V	-	0.28V @ 2A	2A	800 µA	1.8 mA	-	Enable, Power Good, Soft Start	Over Current, Over Temperature, Reverse Polarity	-40°C ~ 125°C	Surface Mount	16-WQFN Exposed Pad, CSP	16-LFCSP (4x4)

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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.