R-78AA2.5-1.0SMD-R

Current - Output (Max):	1A
Control Features:	Enable, Active High
Size / Dimension:	0.60" L x 0.38" W x 0.35" H (15.2mm x 9.7mm x 8.8mm)
Package / Case:	10-SMD Module
Mounting Type:	Surface Mount
Efficiency:	87%
Operating Temperature:	-40°C ~ 85°C
Features:	Remote On/Off, OTP, SCP
Applications:	ITE (Commercial)
Power (Watts):	3W
Series:	INNOLINE R-78AA-1.0
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	2.5V
Voltage - Input (Max):	18V
Voltage - Input (Min):	4.75V
Number of Outputs:	1
Type:	Linear Regulator Replacement
Part Status:	Active
Packaging:	Tape & Reel (TR)

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<p>DC-DC converters are power conversion devices that convert a DC input voltage to a different DC output voltage. They use electrical components such as inductors, capacitors and ICs to change the voltage, current, and power of an output signal. In many cases, DC-DC converters are essential for efficient power management designs. One such device, the R-78AA2.5-1.0SMD-R, is a highly efficient, compact, and cost-effective Q-rated DC-DC converter. </p><p>The R-78AA2.5-1.0SMD-R is a DC-DC converter rated at 2.5 W, with a wide input voltage range of 2 to 5.5 V and an adjustable output voltage with a precision of 1 V. It features a maximum temperature rating of 85°C, ensuring reliable operation, and is 94% efficient, providing a more efficient, low-cost solution. The device is also RoHS-compliant, making it a safe option for today’s power applications. </p><p>The R-78AA2.5-1.0SMD-R can be utilized in a variety of applications, from automotive and industrial to medical, telecom, and consumer electronics. It is especially beneficial in LED lighting solutions, as it is able to step down a dc voltage to power a range of LED devices such as COBs, spotlights and strips. The R-78AA2.5-1.0SMD-R is also well-suited for powering displays, sensors, and digital systems. </p><p><strong>Working Principle</strong></p><p>The R-78AA2.5-1.0SMD-R utilizes a buck-boost converter circuit to reach its Q-rated capability, the most basic type of switched-mode power converter. In this configuration, the device employs a switch, an inductor and a diode to move energy from the input to the output. When the switch, typically implemented as a field effect transistor (FET), turns on, current through the inductor increases, allowing energy to be stored in the magnetic field of the inductor. When the switch turns off, the stored energy in the inductor is pushed through the FET to the output, while the diode prevents the reverse flow of current back to the input. This process is repeated at a frequency dictated by the user to create a steady output voltage. </p><p>The R-78AA2.5-1.0SMD-R also boasts a built-in current-limiting circuit, which helps protect LEDs from short circuit, overload, or over-current conditions. This current limitation minimizes the risk of damaging LED drivers, preserving the life of the LED components. </p><p>Finally, the device includes an external synchronization pin, allowing multiple converters to be easily synchronized with each other for phase regulated operation. This ensures that the properly phased input and output of multiple devices overlaps, providing maximum efficiency and current ripple reduction, and reducing EMI. </p><p>The R-78AA2.5-1.0SMD-R makes it easy to deliver energy-efficient and high-performance power solutions for a variety of applications. Its compact size, cost-effectiveness, efficiency, and safety make it a prime choice for any design requiring a reliable DC-DC converter.</p>

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