LD39300PT18-R

Current - Output:	3A
Base Part Number:	LD39300
Supplier Device Package:	PPAK
Package / Case:	TO-252-5, DPak (4 Leads + Tab), TO-252AD
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	65dB ~ 55dB (120Hz ~ 1kHz)
Current - Supply (Max):	2.5mA
Current - Quiescent (Iq):	5µA
Series:	--
Voltage Dropout (Max):	0.4V @ 3A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LD39300PT18-R is a low-dropout (LDO) linear voltage regulator with a maximum output current of 1.8A from Linear Technology. This LDO regulator is optimised for low quiescent current and high PSRR. Rated at an output voltage of 1.8V with a dropout voltage of approximately 200mV, the device features very low noise output and excellent line and load transient response.The regulator is fully protected against over-temperature, short-circuit and reverse polarity. It can be used in a wide range of applications, including industrial, automotive and telecommunications, as well as military grade applications. It is also suitable for portable devices that are powered by either USB or battery.The LD39300PT18-R has a wide input voltage range, from 1.8V to 5.5V, which makes it suitable for both battery-powered and USB-powered applications. It provides an accurate, low noise output voltage over a wide range of input voltages and also offers excellent power supply rejection ratio. The device also has a high output ripple rejection ratio, which ensures clean and stable DC output.The LD39300PT18-R operates from an external current-limited power supply and it does not require an external voltage divider for the output voltage setting. The device has a maximum output current of 1.8A and a minimum input voltage of 1.8V. It features a wide range of features, such as thermal and short-circuit protection, low quiescent current, and adjustable output voltage.The working principle of the LD39300PT18-R is based on the voltage regulator principle. It uses a voltage reference and resistor divider network to determine the output voltage. The output voltage is determined by a resistive potentiometer that is powered by the input voltage. The feedback of the specified output voltage is provided to the error amplifier which drives the internal power transistor and the output voltage is regulated to the specified value.The device operates with an on-time of about 3ms that can be set with an external resistor. The on-time of the device can be set for maximum efficiency and lowest quiescent current. The device requires a minimum input voltage of 1.8V and a minimum output voltage of 1.8V and has a maximum output current of 1.8A.The LD39300PT18-R is a highly efficient and accurate linear voltage regulator and can be used in a variety of applications. It is suitable for industrial, automotive, and telecommunications applications, as well as portable and military grade applications. It has a wide range of features, such as adjustable output voltage, low quiescent current, high PSRR, and excellent line load transient response. The device has a wide input voltage range, from 1.8V to 5.5V, and a maximum output current of 1.8A. Its working principle is based on the voltage regulator principle and it can provide an accurate, low noise output.

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