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ISL6313IRZ-T +BOM

Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications

Manufacturer:

Renesas Electronics Corporation
Mfr.Part #:

ISL6313IRZ-T
Datasheet:

ISL6313IRZ-T Datasheet (PDF)
Applications:

Controller, Intel VR11, AMD CPU
Voltage - Input:

5V ~ 12V
Number Of Outputs:

1
Voltage - Output:

0.5V ~ 1.6V

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

ISL6313IRZ-T General Description

The ISL6313 two-phase PWM control IC provides 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 multiphase product families. By reducing the number of external parts, this integration is optimized for a cost and space saving power management solution. One outstanding feature of this controller IC is its multiprocessor compatibility, allowing it to work with both Intel and AMD microprocessors. Included are programmable VID codes for Intel VR11 as well as AMD 5-bit and 6-bit DAC tables. 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 ISL6313 also includes advanced control loop features for optimal transient response to load apply 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 ISL6313 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 ISL6313 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 this controller IC include a set of sophisticated overvoltage, undervoltage, and overcurrent protection. Furthermore, the ISL6313 includes protection against an open circuit on the remote sensing inputs. Combined, these features provide advanced protection for the microprocessor and power system.

Key Features

Integrated Multi-Phase Power Conversion
2-Phase or 1-Phase Operation with Internal Drivers
Precision Core Voltage Regulation
Differential Remote Voltage Sensing
±0.5% System Accuracy Over Temperature
Adjustable Reference-Voltage Offset
Optimal Transient Response
Active Pulse Positioning (APP) Modulation
Adaptive Phase Alignment (APA)
Fully Differential, Continuous DCR Current Sensing
Integrated Programmable Current Sense Resistors
Accurate Load Line Programming
Precision Channel Current Balancing
Variable Gate Drive Bias: 5V to 12V
Multi-Processor Compatible
Intel VR11 Mode of Operation
AMD Mode of Operation
Microprocessor Voltage Identification Inputs
8-Bit DAC
Selectable between Intel VR11, AMD 5-bit, and AMD 6-bit DAC tables
Dynamic VID Technology
Dynamic VID Compensation
Overcurrent Protection
Multi-tiered Overvoltage Protection
Digital Soft-Start
Selectable Operation Frequency up to 1.5MHz Per Phase
Pb-free Available (RoHS Compliant)

Specifications

Series	-	Applications	Controller, Intel VR11, AMD CPU
Voltage - Input	5V ~ 12V	Number of Outputs	1
Voltage - Output	0.5V ~ 1.6V	Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount	Base Product Number	ISL6313