RT9819C-33GV

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	143 ms Minimum
Voltage - Threshold:	3.3V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3

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Introduction

The RT9819C-33GV is a synchronous buck regulator that is designed to be used in a myriad of applications, including television and multimedia devices, industrial devices, servers, and PCs. It is the first device of its kind to provide features such as integrated dual-outputs, maximum total output current of 3A, low quiescent current of 10μA, low dropout voltage, and internal voltage regulation. The RT9819C-33GV is classified as a Power Management Integrated Circuit (PMIC) - Supervisors.

Application Field of the RT9819C-33GV PMIC and its Working Principle

The RT9819C-33GV PMIC is mainly used in applications that require a dual-output power source and have strict requirements for total power consumption and load transient response time. Its main applications include powering high-performance CPUs, memory modules, and displays.The RT9819C-33GV is a synchronous buck regulator with dual-output capability. Its unique feature is its programmable load disconnect capability, which allows the device to accurately control the load disconnect state. This capability helps minimize the power consumption of the system and ensure rapid system response time.The RT9819C-33GV has two types of outputs: a secondary output and a main output. The secondary output is designed to supply the low power devices such as TVs, monitors, and so on. This output has a lower output voltage than the main output and is usually used to power digital equipment. The main output is designed to handle the higher power devices such as processors and memory modules. The main output has a higher output voltage than the secondary output, which ensures adequate power delivery.The programmable load disconnect control of the RT9819C-33GV allows the device to reduce power consumption by disconnecting unneeded components from the source when the supply conditions are such that the load is not needed. The main purpose of this is to ensure rapid system response time and reduce power consumption.The RT9819C-33GV is also integrated with a high-efficiency, low-noise step-down DC/DC converter. This converter uses a switching regulator topology to provide a very high frequency output. This allows the output voltage to be changed quickly in order to suit the needs of the application without generating too much noise.Lastly, the RT9819C-33GV has a maximum total output current of 3A and a low dropout voltage of 300mV. This ensures that the device is able to deliver adequate power for its applications. The low quiescent current of 10μA ensures that the device does not draw too much power from the source when it is not needed.

Conclusion

In conclusion, the RT9819C-33GV is a highly integrated dual-output device that is ideal for a variety of applications. Its programmable load disconnect control ensures rapid system response time and reduced power consumption. Its high-efficiency, low-noise step-down DC/DC converter allows it to quickly and accurately respond to varying supply conditions. Its maximum total output current of 3A and low quiescent current of 10μA ensure that the device can reliably supply adequate power while reducing power consumption. The RT9819C-33GV is classified as a Power Management Integrated Circuit (PMIC) - Supervisors.

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