ISL8120IR Datasheet | Renesas

feature functions provide plete control and protection for a 2/n-phase synchronous buck converter, dual independent regulators, or DDR tracking applications (VDDQ and VTT outputs). The output voltage of a ISL8120IRZEC-based converter can be precisely regulated to as low as the internal reference voltage 0.6V, with a system accuracy of ±0.9% over industrial temperature and line load variations. Channel 2 can track an external ramp signal for DDR/tracking applications. The ISL8120IRZEC integrates an internal linear regulator, which generates VCC from input rail for applications with only one single supply rail. The internal oscillator is adjustable from 150k Hz to 1.5MHz, and is able to track an external clock signal for frequency synchronization and phase paralleling applications. The integrated Pre-Biased Digital Soft-Start, Differential Remote Sensing Amplifier, and Programmable Input Voltage POR features enhance the value of ISL8120IRZEC. The ISL8120IRZEC protects against overcurrent conditions by inhibiting the PWM operation while monitoring the current with r DS(ON) of the lower MOSFET, DCR of the output inductor, or a precision resistor. It also has a PRE-POR Overvoltage Protection option, which provides some protection to the load device if the upper MOSFET(s) is shorted. See “PRE-POR Overvoltage Protection (PRE-POROVP)” on page 24 for details. The ISL8120IRZEC’s Fault Hand Shake feature protects any channel from overloading/stressing due to system faults or phase failure. The undervoltage fault protection features are also designed to prevent a negative transient on the output voltage during falling down. This eliminates the Schottky diode that is used in some systems for protecting the load device from reversed output voltage damage. Features - Full Traceability Through Assembly and Test by Date/Trace Code Assignment - Enhanced Process Change Notification per MIL-PRF-38535 - Enhanced Obsolescence Management - Wide VIN Range Operation: 3V to 22V - VCC...