Key features ISL78322
Serial data bus
Dual Outputs:
Configuration 3 - 2 - 1 stage is the first time two integrated gate driver outputs are used
Configure 2 - 1 phase 2 outputs
Modulator for R3
Excellent transient response
Light load and high efficiency
0.5% system accuracy overheating
Supports multi-current detection methods
Non-destructive inductive DCR current sensing
Precision current sense resistors
Differential voltage remote sensing
Programmable V start voltage start
The resistor is programmable to the maximum switching frequency of the two outputs
Adaptive body diode on-time is reduced
description
The ISL95838 Pulse Width Modulation (PWM) controller IC provides a complete solution for powering IMVP-7/VR12™ compatible microprocessor and graphics processor cores. It provides control and protection of two voltage regulators (VR). The first VR, typical of Vcore, employs an integrated driver 2 and can run in a 3-2-1 phase configuration. The second round of voluntary retirement, typical graphics, can work in 2 – 1 phase configurations. The two village representatives share a serial control bus to communicate with the CPU, achieving lower cost and smaller board area compared to the dual-chip approach, which utilizes Intersil's robust ripple regulator R3 technology ™. The R3's modulator offers numerous advantages over traditional modulators, including faster transient response, variable switching frequency during load transients, and improved light-load efficiency due to its ability to automatically change the switching frequency. ISL95838 has several other key features. The two outputs support a single NTC thermistor DCR temperature compensation, or if more precise resistor current sensing or DCR current sensing is required. Two outputs to remote voltage sensing, programmable V starting voltage, I max, switching frequency, adjustable overcurrent protection and independent power supply good signal.