RT9166-33GX

Voltage Dropout (Max):	0.23V @ 300mA (Typ)
Supplier Device Package:	SOT-89-3
Package / Case:	TO-243AA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	55dB (1kHz)
Current - Quiescent (Iq):	300µA
Current - Output:	300mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V
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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What is RT9166-33GX?

RT9166-33GX is a linear voltage regulator designed with a low quiescent current for mobile and consumer electronic applications. It is a single element, low dropout (LDO) voltage regulator that can deliver up to 156 milliamperes of continuous output current. It has a wide operating temperature range of -40 to +125 Celsius.

Application field of RT9166-33GX

The RT9166-33GX is designed to be used in many consumer (portable equipment) as well as industrial and automotive applications. This includes consumer electronics, computer system, computing boards, power management, communications, etc. In addition, its low quiescent current allows it to be used in portable consumer devices that require extended long battery life and depend on battery power.

Working Principle for RT9166-33GX

At its core, the RT9166-33GX uses the same basic working principle as most other linear voltage regulators. It utilizes a complex combination of transistors and resistors to create a controlled voltage source. In most cases, the desired voltage is set using an external resistor to the regulator’s input or output.The RT9166-33GX also uses a loop compensation structure that helps to provide a stable output voltage, even when the input voltage fluctuates significantly. It features an internal transistor that monitors its output voltage and is capable of regulating the output voltage within a range of +/- 1.5% accuracy.The transistor’s internal circuitry also provides protection against inrush current and over-voltage or over-temperature protection. It utilizes an electromechanical switch to ensure the output voltage remains within specs and that there is no risk from short-circuits or thermal shortening due to excessive current.

Conclusion

The RT9166-33GX is an efficient and reliable linear voltage regulator designed for mobile and consumer electronic applications. Its main advantage is its low quiescent current and wide operating temperature, allowing it to be used in many battery-powered devices. Its protection features provide good overload protection ensuring a stable output voltage within a tight tolerance. This makes the RT9166-33GX a good choice for applications that require an efficient and reliable power supply.

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