ISL78234ARZ-T

Voltage - Input (Max):	5.5V
Supplier Device Package:	16-TQFN (3x3)
Package / Case:	16-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	420kHz ~ 4.2MHz
Current - Output:	4A
Voltage - Output (Max):	5.5V
Voltage - Output (Min/Fixed):	0.6V
Series:	Automotive, AEC-Q100
Voltage - Input (Min):	2.7V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction to ISL78234ARZ-T

The ISL78234ARZ-T power management integrated circuit (PMIC) by Intersil is a DC-DC switch-mode voltage regulator. It is a single-channel regulator that is also capable of dual-mode operation. This capability allows for seamless transition between two different operating modes, or different operating points, which can significantly reduce the power consumption of external components. The switch-mode voltage regulator is capable of operating from an input voltage range of 2.1V to 5.25V, and provides a regulated output voltage range of 0.8 to 5V. It utilizes a high-efficiency step-down converter architecture, and features an adjustable soft-start mechanism that is optimized for low noise, low output voltage ripple, and low total harmonic distortion (THD).

Features of ISL78234ARZ-T

The ISL78234ARZ-T DC-DC voltage regulator delivers a wide variety of features designed to enable system designers to efficiently and reliably deliver power. This device is rated for an output current of 1.8A over an operating temperature range of -40°C to 125°C. Other features include thermal shutdown and overload protection, allowing the device to survive an overload current up to 1.7 times the rated load current. It is compatible with the latest PMBUS v1.3 compliant commands, and supports pulse-width modulation (PWM) and linear control algorithms. The device further features adjustable minimum-on-time and fixed frequency control. This allows for a minimum output voltage to be accurately set, and enables the system to accurately optimize for noise performance. Additionally, the device includes an internal power-on reset (POR) generator to ensure the automated safe startup of systems. This helps to guarantee that the system is always in a stable state on power-up and after related voltage transients.

Application of ISL78234ARZ-T

The ISL78234ARZ-T DC-DC voltage regulator is designed primarily for use in automotive, industrial, and consumer applications. In automotive applications, this device can be utilized as part of 24-V fuel pump and injection systems, as well as automotive telecom, vehicle driving/parking sensors, and door/window security systems. It is well suited for powering microcontrollers and other low-power digital circuitry.It is also well suited for industrial applications such as 10-Gigabit Ethernet transceivers, test and measurement equipment, cameras and video surveillance systems, motor control and power converters, digital signage and networking systems, UPS systems, robotics, and more. Lastly, this device can be used with basic consumer appliances such as home automation systems and game consoles.

Working Principle of ISL78234ARZ-T

The ISL78234ARZ-T DC-DC voltage regulator utilizes a high-efficiency step-down regulator topology. Specifically, this device utilizes a fixed frequency, current-mode buck converter. This allows the device to achieve fast transient response and system stability while operating at low switching frequencies. This also helps reduce electromagnetic interference (EMI) and improve system reliability.The ISL78234ARZ-T regulates its output voltage by a feedback loop, which monitors the output voltage level. When the amount of output is increased or decreased, the feedback loop adjusts the pulse duty cycle of the switching regulator to regulate the output voltage level. This results in the desired voltage output. The feedback loop also helps to regulate the power supply, minimizing power losses and enabling efficient regulation over a wide range of operating conditions.The ISL78234ARZ-T is also integrated with various advanced features, including soft-start and adjustable current limit. The adjustable current limit allows for efficient operation over a wide range of input and output conditions. This helps protect the device from excessive current and short-circuit conditions. The built-in soft-start feature helps minimize the inrush current, allowing for gentle power-up and improved system reliability.

Conclusion

In conclusion, the ISL78234ARZ-T DC-DC voltage regulator is a highly efficient, reliable, and cost-effective device designed to provide power management solutions for automotive, industrial, and consumer applications. The device is highly integrated and features a wide range of features which enable system designers to optimize their designs for improved power efficiency, reliability, and system stability. By utilizing a high-efficiency, step-down regulator architecture, the ISL78234ARZ-T enables smooth transitions between operating modes, and provides an adjustable output voltage range of 0.8 to 5V with current ratings of up to 1.8A. In combination with its other features, this device is an excellent choice for a wide range of applications.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description