RT6259BLGQW

Voltage - Input (Max):	18V
Supplier Device Package:	16-WQFN (3x3)
Package / Case:	16-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	650kHz
Current - Output:	3A
Voltage - Output (Max):	7V
Voltage - Output (Min/Fixed):	0.765V
Series:	ACOT™
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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PMIC is an abbreviation for Power Management Integrated Circuit, and Voltage Regulators is one of its specialized fields. DC DC Switching Regulators are a subcategory of these, exhibiting improved performance and faster response times. The RT6259BLGQW is a part of this area, and its application field and working principle is what this paper will be discussing.When it comes to DC-DC voltage regulation, there are two main components that are needed: the converter which regulates voltage, and the controller which determines the adjustments that the converter makes. The RT6259BLGQW is one such combination of these: a hybrid, synchronous buck regulator and its embedded controller. It is specifically tailored to provide low-noise, low-distortion power delivery for applications where power-efficiency is highly valued. The hybrid synchronous buck regulator of the RT6259BLGQW has its maximum output current set at 1A and an adjustable voltage range from 6.5V to 20V. The internal circuitry enables the selection of either a synchronous buck for higher power efficiency, or an asynchronous buck for lower output ripple. Its internal bias current and well-matched current limit sense voltage also allow it to auto-select the best buck operating mode during operation while avoiding extra heat dissipation. It also features an output voltage adjustment control pin which can be used to change its output voltage flexibly. The voltage of this control pin is generated by an internal voltage divider and digitally set using a Data Flash register. This ensures accuracy and reliability when dealing with repetitive changing output voltages. The embedded controller of the RT6259BLGQW offers adjustable frequency over a wide range but keeps the function of system analysis intact. The inductor current is sensed externally by the current limit sense input, and the design of the kernel code provides a programmable soft start timing, output voltage rise time control, overvoltage protection control and more. This ensures smooth output voltage transitions at all times and makes it easier to prevent over-shoots and disturbances on the output end. The RT6259BLGQW’s comprehensive range of features makes it an excellent regulation solution for the vast majority of applications. This includes those involving the car, solar energy, computer, communications, and power systems. Its improved performance over the traditional systems, along with its digital programmability, makes it an ideal choice for any system needing wide dynamic range power control.In addition to its technical benefits, the RT6259BLGQW also includes an EN pin to improve system reliability and a power switch output so it can be used to turn on and off various circuits. This not only helps improve overall stability but also makes the system more energy-efficient and responsive. To sum it up, the RT6259BLGQW includes the ultra-low quiescent current hybrid synchronous buck regulator and its embedded controller, making it an excellent power regulation solution for any system requiring fast response, low-noise and low-distortion power delivery. Its power switch output and adjustable voltage range allow it to be used for a wide range of applications, and on top of this its digital programmability and EN pin ensure system stability and improve its energy-efficiency. In conclusion, the RT6259BLGQW is a valuable part of DC-DC voltage regulation with its synchronous buck converter, embedded controller and other additional features making it an attractive and effective solution for any application.

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