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Three-Phase Buck PWM Controller with Integrated MOSFET Drivers and Light Load Efficiency Enhancements for Intel VR11.1 Applications

封装信息

Lead Count (#) 48
Pkg. Code LLY
Pitch (mm) 0.5
Pkg. Type QFN
Pkg. Dimensions (mm) 7.01 x 7.01 x 0.90

环境和出口类别

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
RoHS (ISL6333IRZ) 下载
HTS (US)

产品属性

Lead Count (#) 48
Carrier Type Tube
Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range -40 to +85°C
Bias Voltage Range (V) 4.75 - 5.25
Droop Yes
Input Voltage (Max) (V) 12
Input Voltage (Min) (V) 5
Integrated MOSFET Driver (s) Yes
Length (mm) 7
MOQ 430
Output Current (Max) [Rail 1] (A) 100
Output Voltage (Max) (V) 1.6
Output Voltage (Min) (V) 0.5
Outputs (Max) (#) 1
Parametric Applications VR11.1
Parametric Category Multiphase DC/DC Switching Controllers
Phases (Max) 3
Pitch (mm) 0.5
Pkg. Dimensions (mm) 7.0 x 7.0 x 0.90
Pkg. Type QFN
Qualification Level Standard
Thickness (mm) 0.9
VID Yes
Width (mm) 7

描述

The ISL6333 three-phase PWM family of control ICs provide a precision voltage regulation system for advanced microprocessors. The integration of power MOSFET drivers into the controller IC marks a departure from the separate PWM controller and driver configuration of previous multi-phase product families. By reducing the number of external parts, this integration is optimized for a cost and space saving power management solution. The ISL6333 controllers are designed to be compatible with Intel VR11. 1 Applications. Features that make these controllers compatible include an IMON pin for output current monitoring, and a Power State Indicator (PSI#) pin for phase dropping and higher efficiency during light load states. An 8-bit VID input is used to select the desired output voltage from the VR11 DAC table. A circuit is provided for remote voltage sensing, compensating for any potential difference between remote and local grounds. The output voltage can also be positively or negatively offset through the use of a single external resistor. The ISL6333 controllers also include advanced control loop features for optimal transient response to load application and removal. One of these features is highly accurate, fully differential, continuous DCR current sensing for load line programming and channel current balance. Active Pulse Positioning (APP) Modulation and Adaptive Phase Alignment (APA) are two other unique features, allowing for quicker initial response to high di/dt load transients. With this quicker initial response to load transients, the number of output bulk capacitors can be reduced, helping to reduce cost. Integrated into the ISL6333 controllers are user-programmable current sense resistors, which require only a single external resistor to set their values. No external current sense resistors are required. Another unique feature of the ISL6333 controllers is the addition of a dynamic VID compensation pin that allows optimizing compensation to be added for well-controlled dynamic VID response. Protection features of these controller ICs include a set of sophisticated overvoltage, undervoltage, and overcurrent protection. Furthermore, the ISL6333 controllers include protection against an open circuit on the remote sensing inputs. Combined, these features provide advanced protection for the microprocessor and power system.