ISL6265A Multi-Output Controller with Integrated MOSFET Drivers for AMD SVI Capable Mobile CPUs

VIN (min) (V)	5
VIN (max) (V)	24
VOUT (min) (V)	0.5
VOUT (max) (V)	1.55
IOUT (max) (A)	60

The ISL6265A is a multi-output controller with embedded gate drivers. A single-phase controller powers the Northbridge (VDDNB) portion of the CPU. The two remaining controller channels can be configured for two-phase or individual single-phase outputs. For uniplane CPU applications, the ISL6265A is configured as a two-phase buck converter. This allows the controller to interleave channels to effectively double the output voltage ripple frequency, and thereby reduce output voltage ripple amplitude with fewer components, lower component cost, reduced power dissipation, and smaller area. For dual-plane processors, the ISL6265A can be configured as independent single-phase controllers powering VDD0 and VDD1. The heart of the ISL6265A is the patented R3 TechnologyTM, Intersil's Robust Ripple Regulator modulator. Compared with the traditional buck regulator, the R3 TechnologyTM has a faster transient response. This is due to the R3 modulator commanding variable switching frequency during a load transient.

The Serial VID Interface (SVI) allows dynamic adjustment of the Core and Northbridge output voltages independently and in combination from 0.500V to 1.55V. Core and Northbridge output voltages achieve a 0.5% system accuracy over-temperature.

A unity-gain differential amplifier is provided for remote CPU die sensing. This allows the voltage on the CPU die to be accurately regulated per AMD mobile CPU specifications. Core output current sensing is realized using lossless inductor DCR sensing. All outputs feature overcurrent, overvoltage and undervoltage protection.

ISL6265A 特点

Core Configuration Flexibility
- Dual Plane, Single-Phase Controllers
- Uniplane, Two-Phase Controller
Precision Voltage Regulators
- 0.5% System Accuracy Over-temperature
Voltage Positioning with Adjustable Load Line and Offset
Internal Gate Drivers with 2A Driving Capability
Differential Remote CPU Die Voltage Sensing
Core Differential Current Sensing: DCR or Resistor
Northbridge Lossless rDS(ON) Current Sensing
Serial VID Interface
- Two Wire Clock and Data Bus
- Supports High-Speed I2C
- 0.500V to 1.55V in 12.5mV Steps
- Supports PSI_L Power-Saving Mode
Core Outputs Feature Phase Shedding with PSI_L
Adjustable Output-Voltage Offset
Digital Soft-Start of all Outputs
User Programmable Switching Frequency
Static and Dynamic Current Sharing (Uniplane Core)
Overvoltage, Undervoltage, and Overcurrent Protection
Pb-Free (RoHS compliant)

ISL6265A 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL6265AHRTZ	量产	Hi-Temp Comm	48 Ld TQFN	2	3.62
ISL6265AHRTZ-T	量产	Hi-Temp Comm	48 Ld TQFN T +R	2	3.62