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

LM2937ES-2.5/NOPB IC REG LIN 2.5V 500MA DDPAK Texas Instruments	618 In Stock	1 : ¥18.87000 Tube	-	Tube	Active	Positive	Fixed	1	26V	2.5V	-	1V @ 500mA	500mA	10 mA	20 mA	-	-	Mirror-Image Insertion, Over Temperature, Short Circuit, Transient Voltage	-40°C ~ 125°C (TJ)	Surface Mount	TO-263-4, D2PAK (3 Leads + Tab), TO-263AA	TO-263 (DDPAK-3)
UA7812CKTTR IC REG LIN 12V 1.5A DDPAK/TO263 Texas Instruments	457 In Stock	1 : ¥13.35000 Cut Tape (CT) 1,000 : ¥3.67049 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel® Bulk	Active	Positive	Fixed	1	30V	12V	-	2V @ 1A	1.5A	-	-	78dB (120Hz)	-	Over Current, Over Temperature, Reverse Polarity, Short Circuit	0°C ~ 125°C	Surface Mount	TO-263-4, D2PAK (3 Leads + Tab), TO-263AA	TO-263 (DDPAK-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.