ACT4525YH-T

Voltage - Input (Max):	36V
Supplier Device Package:	8-SOP-EP
Package / Case:	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	125kHz
Current - Output:	3.5A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5.1V
Series:	--
Voltage - Input (Min):	4.5V
Number of Outputs:	2
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ACT4525YH-T is a synchronous step-down DC-DC converter which belongs to the family of dc-dc switching regulators. It integrates two independent high-side and low-side power MOSFETs, providing up to 12A of continuous output current. This device provides two preset output voltage options, 0.598V and 0.992V, which makes it suitable for various applications.The ACT4525YH-T is designed to provide a constant output voltage with very little variation. This is achieved by regulating the input voltage by a feedback mechanism with a control loop. The high current step-down DC-DC converter operates with a feedback control loop to maintain the output voltage at a consistent level. During operation, the converter monitors the output voltage and adjusts the switching frequency accordingly so that it can ensure a steady output voltage with minimal variation.The switch regulator also features frequency foldback and cycle-by-cycle current limiting for improved efficiency and stability. This is achieved by decreasing the frequency and reducing the available output current based on load conditions. The frequency foldback allows for a lower switching frequency and reduces switching losses, and the cycle-by-cycle current limiting limits the output current in order to prevent any damage to the device.This device is ideal for applications such as DC-DC converters, battery-based power supplies, and board level power supplies. In DC-DC converters, the ACT4525YH-T is a cost-efficient, reliable solution for regulating and converting incoming DC power to the appropriate levels required by downstream components. Battery-based power supplies require precise and reliable voltage regulation, especially when using a single-cell battery source, and the ACT4525YH-T provides a reliable and dependable solution for this application. Board level power supplies are used for converting, regulating, and distributing the power for multiple downstream components, and the ACT4525YH-T is able to regulate and provide power to the necessary peripherals with high efficiency and accuracy.The device also features an integrated bootstrap diode and high efficiency MOSFET which reduce external components and lower board space requirements. In addition, the device\'s design allows for high-switching frequencies up to 1MHz, which enables competitive solutions in space limited applications. The device also has a low stand-by current, making it ideal for portable, battery-powered applications.Overall, the ACT4525YH-T is an ideal solution for applications requiring a reliable and cost-efficient DC-DC converter with high current and high switching frequency capabilities. It combines high efficiency and accuracy with reduced board space requirements, making it an ideal solution for a variety of applications.

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