RT9018B-10GSP

Voltage Dropout (Max):	0.35V @ 3A
Supplier Device Package:	8-SOP-EP
Package / Case:	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Power Good
PSRR:	--
Current - Quiescent (Iq):	1.2mA
Current - Output:	3A
Series:	--
Voltage - Output (Max):	5.15V
Voltage - Output (Min/Fixed):	0.8V (1V)
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Adjustable (Fixed)
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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RT9018B-10GSP Application Field and Working Principle

RT9018B-10GSP is a high-performance linear voltage regulator (LVR) designed for Avionics application. It is highly stable and accurate over wide supply and temperature ranges and feature a low noise output voltage. It is designed to replace the old linear regulators with their fragile and lower performance. The device is pin compatible with the standard linear regulators and therefore extremely suitable for highest performance, high reliability switching power supply systems.

Application Field

The RT9018B-10GSP LVR is ideal for avionic, automotive and industrial applications, as it is extremely robust for harsh environment and its pin compatible feature means that it can be used as an exact replacement for existing linear regulators without any re-design. It has been widely used in applications such as DC/DC converters, power supplies, LCD display boards, smart lighting, battery management systems, point-of-load power supplies, embedded system controllers and more.

Working Principle

The RT9018B-10GSP LVR is a high-performance, wide input linear regulator that uses a resistive voltage divider and active current limit to maintain a stable output voltage. The regulator provides an active current limit, which sets a peak charge current, and sets the output voltage to a maximum of 10V.The LVR also has an output impedance of 2.4mΩ, resulting in an output voltage ripple of 10mV. This ensures high accuracy, even in highly dynamic conditions. The RT9018B-10GSP is capable of delivering up to 7A of current and features an on-chip thermal protection function that prevents it from overheating.The regulated voltage is determined by the load current and input voltage. When the load current exceeds the peak current value, the over-current protection kicks in and limits the current to the maximum safe value. The RT9018B-10GSP has a wide input voltage range between 4V and 40V, enabling it to work in applications with a wide variety of input voltages.

Conclusion

RT9018B-10GSP is a high-performance linear voltage regulator designed for harsh environment applications. It has a wide input voltage range and provides a stable output voltage with a minimum of 10mV ripple. It also features active current limit and on-chip thermal protection to keep it from overheating. This makes it ideal for applications such as DC/DC converters, power supplies, LCD display boards, smart lighting, battery management systems, point-of-load power supplies, and embedded system controllers.

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