ISL68134IRAZ-T7A

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ISL68134IRAZ-T7A is a Quad-Channel, Autonomous Source-Synced Buck Controllers, designed to support the most demanding and advanced power management topologies. It is categorized in the field of PMIC (Power Management Integrated Circuit), Voltage Regulators, DC DC Switching Controllers.

The ISL68134IRAZ-T7A offers independent dual source-synced buck controllers that are optimized for very high efficiency application requirements. The independently regulated regulators share power input (BIAS) rail, which is switched between the two sources according to the application needs. Each of the regulators can also be used in constant on-time modes to further enhance their efficiency. The controllers have high-side and low-side MOSFET drivers for adding external MOSFETs for synchronous control.

The ISL68134IRAZ-T7A can operate from 2.5V to 5.5V supply voltage, and each channel can output up to 8V. The ISL68134IRAZ-T7A supports high current step-down converter, supporting dual output applications with load current up to 25A. The controllers include high accuracy voltage monitors, under-voltage/over-voltage lockout and thermal protection features.

The working principle of ISL68134IRAZ-T7A is based on the source-synchronous control method, which takes advantage of the dropout voltage of the synchronous MOSFETs at the power stage to accurately set the regulated output voltage. The controller measures Drain-Source voltage of the low-side MOSFET and compares it to the reference voltage. When the measured voltage exceeds that of the reference, the controller inhibits further PWM pulses to the MOSFET drivers until the measured voltage becomes equal to the reference voltage.

The major features of the ISL68134IRAZ-T7A include two independent dual-channel PWM controllers designed to operate in source-synchronous buck mode, supply voltage of 2.5V to 5.5V, integrated low RDS(on) high-side and low-side MOSFET drivers, up to 8V output voltage, up to 25A output current, spread spectrum, output voltage accuracy within +/-1% (3.3V mode), +/-2.5 % (2.5V mode), integrated power good indicator, UV/OV/OTP protection, positive or negative slew rate control, and adjustable soft start.

The ISL68134IRAZ-T7A is a versatile device suitable for multiple applications. It can be used in high power supply systems such as automotive, industrial, telecom, and medical systems. The device can be used in applications ranging from PoE (Power over Ethernet) to high power motor control. The device is also ideal for high current battery charging applications. The integrated protection features and high accuracy voltage regulation make it an ideal choice for reliable and robust power supply systems and systems with long-term reliability.

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