Controller IC Chip - MOSFET ISL95858HRZ ISL95858 HRZ chip for laptop - Integrated Laptop Chip (Code 1-CHIP0549)

Controller IC Chip - MOSFET ISL95858HRZ ISL95858 HRZ chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0549)

3+2 Multiphase PWM Regulator for Intel IMVP8â„¢ Desktop CPUs

Compliant with Intel IMVP8™, the ISL95858 provides a complete power solution for desktop microprocessors supporting both the core (IA) and graphics (GT) rails. The controller provides control and protection for one voltage regulator (VR), which can be configured for 3-, 2- or 1-phase operation. The second VR is configurable for 2- or 1-phase operation. The VRs feature a programmable SVID address to allow maximum flexibility in supporting desktop processor SKUs. Both controller outputs share a common serial control bus to communicate with the CPU and achieve lower cost and smaller board area compared with a two-chip approach.Based on Intersil’s robust ripple regulator R3™ technology, the R3™ modulator has many advantages compared to traditional modulators. These include faster transient settling time, variable switching frequency in response to load transients and improved light-load efficiency due to diode emulation mode with load-dependent low switching frequency.The ISL95858 has several other key features. The controller features three integrated +12V gate drivers with two drivers on the VR B output. The controller supports either DCR current sensing with a single NTC thermistor for DCR temperature compensation or more precision through resistor current sensing if desired. Both outputs feature remote voltage sense, programmable IMAX, adjustable switching frequency, OC protection and single VR_READY power-good indicator.

Supports Intel serial data bus interface• SMBus/PMBus/I2C interface with SVID conflict free•Green hybrid digitalR3™ modulator- Excellent transient response- Phase shedding with power state selection- Diode emulation in single-phase for high light-load efficiency• Dual output controller- Voltage regulator A: 3-, 2-, or 1-phase designs with two +12V integrated gate drivers- Voltage regulator B: 2-, or 1-phase designs with one +12V integrated gate driver• 0.5% system accuracy over-temperature• Supports multiple current sensing methods- Lossless inductor DCR current sensing- Precision resistor current sensing• Differential remote voltage sensing• Resistor programmable address selection, IMAX and switching frequency for both outputs• Adaptive body diode conduction time reduction

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