RT9013-18GU5

Voltage Dropout (Max):	0.4V @ 500mA
Supplier Device Package:	SC-70-5
Package / Case:	5-TSSOP, SC-70-5, SOT-353
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	50dB (10kHz)
Current - Quiescent (Iq):	50µA
Current - Output:	500mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
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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RT9013-18GU5 Application Field and Working Principle

The RT9013-18GU5 (RT9013) is a Positive Adjustable Voltage Regulator designed to provide a stabilized output voltage adjustable from 1.25V to 18V. The output voltage can be set by applying an external resistive voltage divider across the ADJ(adjustment) and GND pins. It is the best choice for energy-saving applications, power supply design and power regulation.

Features

1. Low Quiescent Current: Maximum quiescent current (Iq) of 30µA for < 1.250V output, 150µA for 1.250V - 5.500V output and 400µA for > 5.500V output.2. Wide Input Voltage Range: Operating input voltage range from 0.9V to 25V, ideal for low power applications.3. Thermal Protection: RT9013 has built in Output Voltage Thermal Protection circuit that limits the maximum output voltage if the die temperature exceeds the specified safety limit.4. Internal Current Limiting: Built in internal current limiting circuit prevents RT9013 from excessive current when load current is increased.5. Pulse-by-Pulse Limiting: The RT9013 features internal circuit limiting ensures that continuous and/or repetitive over-current is not ventured.

Application Field

RT9013 is suitable for electro-mechanical equipment, power efficient solutions and low power applications such as mobile phones, telecommunication and automotive electronics. In addition, the device can provide power regulation for 12V car audio systems, LCD panels and graphics cards.

Working Principle

RT9013 is a linear voltage regulator with adjustable output voltage from 1.25V to 18V. It works by controlling the transistor which is used to regulate the output voltage according to the input voltage and the reference voltage generated by an adjustable potentiometer at the ADJ(adjustment) pin.The RT9013 is capable of delivering up to 500mA load current. The internal circuit is designed to protect the RT9013 by providing current limiting and pulse-by-pulse limiting. When the load current is increased, the internal current limiting circuit will adjust the output voltage in order to maintain the output current within the designed operating range. The device will also limit the output voltage when the die temperature exceeds the safety limit. Finally, the RT9013 also features an Output Voltage Thermal Protection circuit which limits the maximum output Voltage when the die temperature exceeds a predetermined safety limit. This is to protect the device from overheating and ensure the safety of the surrounding environment. In conclusion, RT9013-18GU5 is an ideal choice for energy-saving solutions, power supply design and power regulation. It is highly reliable and efficient with its wide input voltage range, low quiescent current, pulse-by-pulse limiting and internal current limiting. RT9013-18GU5 will provide a stabilized output voltage adjustable from 1.25V to 18V and is capable of delivering up to 500mA load current.

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