LD39150DT33-R

Current - Output:	1.5A
Base Part Number:	LD39150
Supplier Device Package:	DPAK
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	65dB ~ 55dB (120Hz ~ 1kHz)
Current - Quiescent (Iq):	2.5mA
Series:	--
Voltage Dropout (Max):	0.4V @ 1.5A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionLD39150DT33-R is a low-dropout linear voltage regulator that can operate at a wide range of input voltages from 2 to 15 V and delivers a current up to 1.5 A. It provides precise 3.3 V output and features a low quiescent current of 8 μA which makes it ideal for use in low power applications. It also includes low-noise operation and high accuracy over a wide temperature range.Application fieldsLD39150DT33-R is typically used in industrial, automotive, medical and consumer electronic applications where the input voltage varies with load conditions, due to its wide input voltage range. It is also used in applications requiring high voltage accuracy, such as memory device and high-precision measurement equipment.Working principleThe LD39150DT33-R is a linear regulator that employs a low drop-out (LDO) architecture. This means that the voltage drop across the regulator is limited, allowing the output voltage to remain stable over a wide range of load conditions. It uses a p-channel MOSFET to regulate the output voltage and works by connecting a resistor between the output voltage and the regulator’s control terminal. This resistor sets the current through the MOSFET, and the output voltage is held at a constant level determined by the resistor’s value.The output voltage of the LD39150DT33-R is regulated by the feedback loop and is independent of the voltage on the input. The feedback loop can be adjusted using external components, allowing the output voltage to be precisely adjusted.FeaturesThe LD39150DT33-R offers many features, including:• Low Drop-Out voltage: The LD39150DT33-R has a low drop-out voltage of 0.5 V, allowing it to operate over a wide range of input voltages with minimal power loss.• High Accuracy: The LD39150DT33-R offers high accuracy over a wide temperature range, with an output voltage accuracy of ±1.0%.• Low Quiescent Current: The LD39150DT33-R has a low quiescent current of 8.0 μA, making it ideal for low power applications.• Low-Noise Operation: The LD39150DT33-R features low-noise operation and is ideal for applications where noise is an issue.ConclusionThe LD39150DT33-R is a low-dropout linear voltage regulator that is suitable for a wide range of industrial, automotive, medical and consumer electronic applications. It offers a wide input voltage range, high accuracy, low quiescent current and low-noise operation. It is a great choice for applications where precision and power efficiency are key requirements.

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