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See Technical Specifications

ISL6217ACVZ

PWM Controller, IMVP License Required, CPU Power for Centrino

Manufacturer:

Renesas Electronics Corporation
Mfr.Part #:

ISL6217ACVZ
Datasheet:

ISL6217ACVZ Datasheet (PDF)
Applications:

Controller, Intel Pentium® IMVP-IV, IMVP+
Voltage - Input:

5.5V ~ 25V
Number of Outputs:

1
Operating Temperature:

-10°C ~ 85°C

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

ISL6217ACVZ General Description

The ISL6217A Multi-Phase Buck PWM controller IC, with integrated half bridge gate drivers, provides a precision voltage regulation system for advanced Pentium IV microprocessors in notebook computers. Two-phase operation eases the thermal management issues and load demand of Intel's latest high performance processors. This control IC also features both input voltage feed-forward and average current mode control for excellent dynamic response, Loss-less current sensing using MOSFET r_DS(ON) and user-selectable switching frequencies from 250kHz to 1MHz per phase. The ISL6217A includes a 6-bit digital-to-analog converter (DAC) that dynamically adjusts the CORE PWM output voltage from 0. 700V to 1. 708V in 16mV steps and conforms to the Intel IMVP-IV™ and IMVP-IV+™ mobile VID specification. The ISL6217A also has logic inputs to select Active, Deep Sleep and Deeper Sleep modes of operation. A precision reference, remote sensing and proprietary architecture, with integrated, processor-mode, compensated Droop, provide excellent static and dynamic CORE voltage regulation. To improve efficiency at light loading, the ISL6217A can be configured to run in single phase PWM in ACTIVE, DEEP or DEEPER SLEEP modes of operation. Also, in deep and deeper sleep modes the ISL6217A will operate in diode emulation. Another feature of this IC controller is the PGOOD monitor circuit that is held low until CORE voltage increases, during its soft-start sequence, to within 12% of the Boot voltage. This PGOOD signal is masked during VID changes. Output overcurrent, overvoltage and undervoltage are monitored and result in the converter latching off and PGOOD signal being held low. The overvoltage and undervoltage thresholds are 112% and 84% of the VID, Deep or Deeper Sleep setpoint, respectively. Overcurrent protection features a 32 cycle overcurrent shutdown. PGOOD, overvoltage, undervoltage and overcurrent provide monitoring and protection for the microprocessor and power system. The ISL6217A IC is available in a 38 lead TSSOP.

Key Features

Diode Emulation Functionality in deep and deeper sleep modes for improved light load efficiency
IMVP-IV™ and IMVP-IV+™ Compliant CORE Regulator
Single and/or Two-phase Power Conversion
"Loss-less" Current sensing for improved efficiency and reduced board area
Optional Discrete Precision Current Sense Resistor
Internal Gate-Drive and Boot-Strap Diodes
Precision CORE Voltage Regulation
0.8% system accuracy over temperature
6-Bit Microprocessor Voltage Identification Input
Programmable "Droop" and CORE Voltage Slew Rate to comply with IMVP-IV™ and IMVP-IV+™ specification
Direct Interface with System Logic (STP_CPU# and DPRSLPVR) for Deep and Deeper Sleep modes of operation
Easily Programmable voltage setpoints for Initial "Boot", Deep Sleep and Deeper Sleep Modes
Excellent Dynamic Response
Combined Voltage Feed-Forward and Average Current Mode Control
Overvoltage, Undervoltage and Overcurrent Protection
Power-Good Output with internal blanking during VID and mode changes
User programmable Switching Frequency of 250kHz - 1MHz per phase
Pb-Free Plus Anneal Available (RoHS Compliant)

Specifications

Series	-	Applications	Controller, Intel Pentium® IMVP-IV, IMVP+
Voltage - Input	5.5V ~ 25V	Number of Outputs	1
Voltage - Output	-	Operating Temperature	-10°C ~ 85°C
Mounting Type	Surface Mount	Base Product Number	ISL6217