RT9030-11GU5

Voltage Dropout (Max):	--
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:	67dB ~ 40dB (1kHz ~ 100kHz)
Current - Quiescent (Iq):	50µA
Current - Output:	150mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.1V
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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The RT9030-11GU5 is a linear voltage regulator belonging to the PMIC (Power Management IC) family, specifically the voltage regulator family. This regulator integrates several components, such as a power switch, a voltage regulator and a driver, into a single package. It provides high-efficiency operation, wide input/output voltage range, low quiescent current and a adaptive startup circuit. The RT9030-11GU5 finds its primary application in automotive, industrial, and consumer electronics. In automotive applications, it is used for audio devices, rearview image displays, instrument clusters, infotainment systems and automotive IGBTs. In industrial applications, it is used in industrial PCs, industrial displays, industrial measurement and control equipment, HVAC controls, street lights and solar panels. In consumer electronics, it is used in LCD TVs, game consoles, car motors and home appliances. Other applications include medical systems, LED lighting and power cordless tools. The block diagram of RT9030-11GU5 is shown in Fig 1. The circuit starts off with an input voltage supply that is applied to the PVDD pin. This voltage is used to operate the internal logic and bias circuits. Then, the internal logic monitors the input voltage and turns on the power switch based on the voltage level. The output voltage is implemented via a voltage divider network that provides feedback to the error amplifier. The output voltage is also connected to the thermal shutdown circuit, which will shut down the chip if the output voltage exceeds a predefined maximum voltage level. The main component of the RT9030-11GU5 is the PMOS power switch, which is capable of switching 500mA of current and operating at a wide input voltage range of 0.9V to 18V. It features a low RDS(on) and low quiescent current. The error amplifier can be configured to provide a voltage regulation range of 0.9V to 18V and operates with a high line and load regulation. The adaptive startup circuit provides an active start-up and prevents overshoot and undershoot during fast transitions. Lastly, the thermal shutdown circuit prevents overvoltage or overcurrent conditions and shuts down the device in order to protect it from damage without affecting the performance of the system.In conclusion, the RT9030-11GU5 integrates several components, such as a power switch, a voltage regulator and a driver into a single package. It provides high-efficiency operation, wide input/output voltage range, low quiescent current and a adaptive startup circuit. It finds its application in automotive, industrial and consumer electronics and is capable of switching 500mA of current and operating at a wide input voltage range of 0.9V to 18V.

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