Voltage Dropout (Max):	0.23V @ 50mA
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 (TA)
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	65dB (50mA)
Current - Quiescent (Iq):	40µA
Current - Output:	50mA
Series:	--
Voltage - Output (Max):	60V
Voltage - Output (Min/Fixed):	1.25V
Voltage - Input (Max):	60V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The RT9068GSP is a linear voltage regulator integrated circuit that is designed for a wide range of applications, including general-purpose and high-end digital systems. It features a voltage regulator among other components such as a DC input/output interface, locking latch for stable operation, and low quiescent current consumption. It integrates a power switch and an electronic circuit to protect from shorts and overcurrent, making it a robust and reliable solution for many system applications.

Application Field

The RT9068GSP is well-suited for various general-purpose and high-end digital systems, such as 5V/3.3V DC-DC converter, 3.3V/2.5V clock oscillator, voltage compensation circuit and linear regulator. It is an ideal solution for portable applications, providing low quiescent current and high efficiency, as well as significantly reduced system size.In 5V/3.3V DC-DC converters, the RT9068GSP can provide stable output voltage with a low output ripple noise, even when the input voltage fluctuates. Furthermore, its built-in PWM (pulse-width modulation) control can provide optimized performance in difficult design situations.For 3.3V/2.5V clock oscillator applications, the RT9068GSP offers a wide operating range and is capable of delivering a clear pulse that is well-suited for many digital clock oscillator designs.Voltage compensation circuits also benefit from the use of the RT9068GSP. It is capable of generating accurate output voltages for improved closed-loop performance.The RT9068GSP is well-suited for low-voltage linear regulator applications as well. As a superb solution for high-efficiency and low quiescent current designs, it can provide the necessary protection and robustness to the system.

Working Principle

The RT9068GSP features a simple dual-mode linear regulator topology, making it an easy-to-design voltage regulator. It utilizes a series-mode buck regulator to step down the input voltage to the required output voltage, and then uses a low dropout linear regulator to maintain the output voltage.The RT9068GSP includes two control circuits: the primary control loop and the secondary control loop. The primary control loop is responsible for selecting the appropriate operating mode based on the input and output voltages, while the secondary control loop is responsible for ensuring a stable voltage output by continuously monitoring the output voltage and adjusting the duty cycle accordingly.The RT9068GSP also includes protective features such as over-current protection, short-circuit protection, and ESD (electrostatic discharge) protection that guard against various external disturbances.

Conclusion

The RT9068GSP is a linear voltage regulator IC that is ideal for a wide variety of general-purpose and high-end digital system applications. It features a series-mode buck regulator and a low dropout linear regulator to provide the necessary robustness and protection, and its low quiescent current consumption ensures improved efficiency and reduced system size. The RT9068GSP provides optimized performance for 5V/3.3V DC-DC converters, 3.3V/2.5V clock oscillator applications, voltage compensation circuits and low-voltage linear regulator applications.

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