ACT4528YH-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:	Yes
Frequency - Switching:	125kHz
Current - Output:	3A
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5.1V, 9.1V, 12.1V
Series:	--
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Programmable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to ACT4528YH-T

The ACT4528YH-T is a versatile voltage regulator module from the PMIC (Power Management IC) family from Texas Instruments. It is a DC (Direct Current) DC (Direct Current) switching regulator that provides high quality output power with the reliable performance of an adjustable voltage regulator. It has an adjustable output voltage range from 1V to 36V and supports a wide input voltage range from 6V to 81V. The ACT4528YH-T is suitable for a variety of applications such as motor drives, audio amplifiers, power supplies, and DC-DC converters.

Application Field

The ACT4528YH-T is suitable for applications that require high quality output voltage regulation. It can provide a wide range of adjustable voltage outputs, from 1V to 36V, as well as a wide range of input voltages from 6V to 81V.This device can be used for a variety of applications that require a reliable, adjustable voltage regulator. This includes motor drives, audio amplifiers, power supplies and DC-DC converters. For example, it can be used to power motor drives, where the output voltage must be adjusted in order to achieve the desired motor speed. It can also be used to provide a stabilized power supply for digital audio systems.

Working Principle

The ACT4528YH-T uses a pulsed current mode switch-mode voltage regulator control scheme to achieve high quality output power with reliable performance. It consists of several main features that enable accurate voltage regulation through fast loop response.The main elements of this control scheme are the output voltage amplifier, feedback network, reference voltage source, voltage slicing, and the oscillator. The output voltage amplifier is responsible for providing the desired regulated output voltage. The feedback network provides the output voltage feedback to the amplifier, allowing for accurate voltage regulation. The reference voltage source provides the reference voltage to enable a stable output voltage even when the input voltage is changing. The voltage slicing prevents the output voltage from exceeding the rated voltage. The oscillator provides the necessary switching signals for the switching elements which control the power conversion.

Conclusion

The ACT4528YH-T is a versatile voltage regulator module from the PMIC (Power Management IC) family from Texas Instruments. It is a DC (Direct Current) DC switching regulator that provides high quality output power with reliable performance along with an adjustable output voltage range from 1V to 36V and supports a wide input voltage range from 6V to 81V. This device is suitable for applications that require high quality output voltage regulation and can be used for a variety of motor drives, audio amplifiers, power supplies, and DC-DC converters. It uses a pulsed current mode switch-mode voltage regulator control scheme to achieve high quality output power with reliable performance.

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