ISL78236ARZ-T

Voltage - Output (Min/Fixed):	1.2V
Base Part Number:	ISL78236
Supplier Device Package:	24-QFN (4x4)
Package / Case:	24-VFQFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 105°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	2.5MHz
Current - Output:	3A
Voltage - Output (Max):	6V
Series:	Automotive, AEC-Q100
Voltage - Input (Max):	6V
Voltage - Input (Min):	2.85V
Number of Outputs:	2
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The ISL78236ARZ-T is an efficient, highly integrated synchronous dual-phase buck controller intended for use as a DC-DC switching regulator. It is designed to operate with an input supply voltage of 2.7V to 5.5V and can deliver an output current of 4A. The ISL78236ARZ-T is capable of operating at switching frequencies up to 1.5 MHz.The dual-phase architecture of the ISL78236ARZ-T allows for the utilization of simultaneous high current outputs and for the power supply design to be optimized for improved power efficiency. It provides regulated outputs with accuracy better than ±0.8%. The ISL78236ARZ-T also has integrated circuit under-voltage lockout (UVLO) thresholds as well as cycle-by-cycle current limit and hiccup short circuit protection for the power FETs.The ISL78236ARZ-T has a variety of features that make it suitable for a wide range of applications. It is particularly suited to applications such as portable devices, cellular phones, and automotive applications that require a dual-phase, high current DC-DC buck converter. In addition, its very fast transient response, line and load regulation, as well as low noise output makes it suitable for a wide range of applications.The ISL78236ARZ-T is designed with a synchronous buck topology and operates according to the fixed frequency, PWM mode. It features proprietary ramp control block and digital voltage positioning that enable fast output voltage tracking and transient response times. The ramp control block automatically adjusts the inductor current sense value, thus improving the system efficiency.The ISL78236ARZ-T is designed with a user-programmable current setting by modifying the current sense resistor value. This allows the optimized use of the power stages based on the user application, thus ensuring that the power supply meets the requirements for efficiency, size and performance.The ISL78236ARZ-T includes all the necessary features required to implement a complete, single IC synchronous buck converter. It features advanced current sensing, as well as cycle-by-cycle current limit and over-temperature shutdown based on the external sense resistor. The ISL78236ARZ-T also has an integrated soft-start feature to avoid over-charging or over-discharging during start-up.In conclusion, the ISL78236ARZ-Tis a highly integrated, dual-phase buck controller, designed for applications that require high current output and fast transient response times. It has advanced current sensing, cycle-by-cycle current limit and over-temperature protection, together with an integrated soft-start for improved power efficiency. The ISL78236ARZ-T also includes a user-programmable current setting, as well as other features that make it an ideal solution for a wide range of applications, from portable devices to automotive applications.

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