ISL6228HRTZ

Frequency - Switching:	200kHz ~ 600kHz
Base Part Number:	ISL6228
Supplier Device Package:	28-TQFN (4x4)
Package / Case:	28-WFQFN Exposed Pad
Operating Temperature:	-10°C ~ 100°C (TA)
Control Features:	Enable, Frequency Control, Phase Control, Power Good
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	--
Series:	Robust Ripple Regulator™ (R3)
Voltage - Supply (Vcc/Vdd):	3.3 V ~ 25 V
Output Phases:	1
Number of Outputs:	2
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

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ISL6228 is an integrated high-performance DC/DC synchronous buck controller designed for sub 1V field applications. It combines a low-power and low-voltage structure with high-performance analog and digital features valuable for efficient power conversion in low-voltage systems. It is designed to operate in the typical sub 1V range and can be used in a 0.8V output power application. The integrated high-efficiency PWM buck controller featuring advanced synchronous ORing, load transient response and low-voltage protection characteristics, enabling excellent regulation even in the presence of variable loads. ISL6228 synchronous buck controllers support wide input voltage range from 0.8V to 15V and up to 2A of output current. It is integrated with dual-channel control circuitry to provide synchronized pulse-by-pulse current limiting and thermal shutdown protection. The device utilizes a dual-channel high and low voltage monitoring system, each with its own independent input and output voltage levels, for fast response and accurate regulation.The integrated synchronous ORing feature enables efficient, balanced power delivery and provides maximum efficiency in synchronous buck conversion. It also helps reduce external component component count and cost. Low delay standby boosts the system\'s sleep and wake-up times, while the high-resolution programmable current limit provides maximum control and protection while saving power and reducing component count.The integrated 100uA fast-start current feature allows fast start-up and output voltage stabilization, while the Built-in gate drive pulse boost feature helps reduces switching losses and improve system efficiency. The integrated oscillator, frequency synchronization and current limit can be easily programmed to match the application\'s power requirements, while the integrated voltage feed forward and oscillator synchronization provide reliable and accurate operation over an extended range. In summary, the ISL6228 offers a complete solution for 1-Volt power management with an integrated design that eliminates the need for external components and reduces system cost. With its wide input voltage range, high current-handling capability and advanced synchronous ORing, this controller offers improved efficiency for DC/DC conversion over a wide range of applications.

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