ISL8105BCBZ

Frequency - Switching:	300kHz
Base Part Number:	ISL8105B
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Control Features:	Current Limit, Enable
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	100%
Series:	--
Voltage - Supply (Vcc/Vdd):	6.5 V ~ 14.4 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tube

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ISL8105BCBZ Application Field and Working Principle

The ISL8105BCBZ are high performance DC/DC switching controllers with integrated high side power MOSFET. They are ideal for applications such as high current graphics cards, gaming consoles, embedded computers and application-specific industrial/automotive requirements. The controllers feature an active current limit profile and overcurrent protection, allowing them to accurately control large output currents up to 23A.The ISL8105BCBZ are designed to operate in a fixed frequency pulse width modulation (PWM) mode with an adjustable switching frequency up to 400kHz. Internal compensation and current limit loop ensure stability and correct operation of the power supply regardless of input voltage, output voltage and transient response requirements.In PWM operation mode, the ISL8105BCBZ drives an N-channel power MOSFET connected to the output supply able to deliver a load current from no load up to 23A. This high load-current capability enables the application to provide power for high load conditions. Outside of PWM mode, the device enters power save mode which reduces the supply current down to 20mA.The ISL8105BCBZ is available with overvoltage protection and power sequencing to provide high current output in an efficient and reliable manner. The device also offers a wide range of features such as thermal shutdown, UVLO, and over temperature protection making them robust and reliable.The ISL8105BCBZ is a versatile device that can be used in a wide range of applications such as gaming consoles, portable computers, digital TVs and multimedia-point-of-sale systems. The device can also be used in automotive, industrial, and consumer electronics applications where high performance and reliability is desired. The ISL8105BCBZ also offers different integration capabilities, allowing customers to integrate additional features such as LED control, power sequencer, and audio control into the system design. The ISL8105BCBZ represents technological advances in DC/DC switching controllers, providing greater accuracy and higher resolution when configuring the power supply. Additionally, the ISL8105BCBZ employs an intelligent gate driver that allows the device to work with a wide range of output voltage, minimizing the effort required for powering appliances with a wide variety of input voltages. In conclusion, the ISL8105BCBZ is a universal DC/DC converter for a wide range of applications and provides excellent performance, efficiency, and features for customers to implement complex power delivery solutions. It has several features such as thermal shutdown, UVLO, over-temperature protection and overvoltage protection to ensure reliable, robust operation. Its integrated high side power MOSFET enables the application to provide power for high load conditions and its power sequencing feature allows for reliable, efficient power delivery. Its active current limit profile and overcurrent protection provides excellent accuracy in controlling large output currents up to 23A, as well as additional integration capabilities such as LED control, power sequencing and audio control.

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