LDK130C29R

Current - Output:	300mA
Base Part Number:	LDK130
Supplier Device Package:	SOT-323-5
Package / Case:	5-TSSOP, SC-70-5, SOT-353
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	55dB (120Hz ~ 10kHz)
Current - Supply (Max):	120µA
Current - Quiescent (Iq):	60µA
Series:	--
Voltage Dropout (Max):	0.4V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.9V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LDK130C29R Application Field and Working PrincipleThe LDK130C29R is a high-performance, linear voltage regulator from Linear Technology Corporation. It is a three-terminal integrated circuit (IC) that is capable of providing a very low noise and a very low output impedance over a wide range of frequencies. It is available in 0.3amp (A) and 1.0A versions.The LDK130C29R linear voltage regulator is designed to provide power to a wide range of critical components, such as RF transceivers and converters, in industrial, automotive, IoT, and consumer applications. It is also suitable for wireless communication, battery-operated applications, and any other system requiring low-noise, low-output impedance, low-current regulation.The LDK130C29R voltage regulator has multiple operating modes, including fixed and adjustable outputs, as well as a standby mode. In the fixed output mode, when the VIN pin voltage is applied, the output pin voltage is fixed and the output current remains constant until the voltage on the output pin drops below the preset threshold. In the adjustable output mode, the output pin voltage can be adjusted by varying the voltage on the adjustment (Vadj) pin. In the standby mode, the output pin voltage is maintained until the voltage on the enable (EN) pin is removed, which turns off the output pin voltage.The LDK130C29R linear voltage regulator utilizes a linear regulation system to provide an extremely low output noise and low-output impedance. It employs a proportional-integral (PI) topology structure to allow a very stable and fast transition response. A control loop consisting of an error-amplifier, comparator and current source is used to regulate the output voltage and current, and provide a fast response time.The LDK130C29R also provides several protection features to ensure the safety of the sensitive integrated circuits on the main board. It is compatible with several short circuit protection schemes, such as thermal shutdown, current limit, and soft start. In addition, it also features an over-temperature protection (OTPs) circuit that monitors the ambient temperature and puts the protection circuit into action when the temperature exceeds a predefined threshold.The LDK130C29R linear voltage regulator is highly reliable and is available in a variety of packages such as SOT-163, SOT-223, and SOT-25. It has a wide input voltage range of 4.5 V to 40 V and a wide operating temperature range of -40˚C to +125˚C, making it suitable for a wide range of applications.In conclusion, the LDK130C29R linear voltage regulator is ideally suited for applications requiring low-noise, low-output impedance regulation and a variety of protection features. Its wide operating temperature range, adjustable output, and fast response time make it an excellent choice for a variety of critical components.

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