FAN5094MTCX

FAN5094MTCX Datasheet

FAN5094

Part	Datasheet
FAN5094MTCX	FAN5094MTCX (pdf)

Related Parts	Information
FAN5094MTC	FAN5094MTC

PDF Datasheet Preview
FAN5094 Multi-Phase Interleaved Buck Converter • Programmable output from 1.100V to 1.850V in 25mV steps using an integrated 5-bit DAC • Two interleaved synchronous phases per IC for maximum performance • Up to 4 phase power system • Built-in current sharing between phases and between ICs • Frequency and phase synchronization between ICs • Remote sense and Programmable Active Droop • High precision voltage reference • High speed transient response • Programmable frequency from 200KHz to 2MHz • Adaptive delay gate switching • Integrated high-current gate drivers • Integrated Power Good, OV, UV, Enable/Soft Start functions • Drives N-channel MOSFETs • Operation optimized for 12V operation • High mode at light load • Overcurrent protection using MOSFET sensing • 28 pin TSSOP package • Power supply for • Power supply for • Power supply for Ultrasparc • VRM for Pentium IV processor • Programmable step-down power supply Block Diagram +12V VFB The FAN5094 is a synchronous multi-phase DC-DC controller IC which provides a highly accurate, programmable output voltage for all high-performance processors. Two interleaved synchronous buck regulator phases with built-in current sharing operate 180° out of phase to provide the fast transient response needed to satisfy high current applications while minimizing external components. FAN5094s can be paralleled while maintaining both frequency and phase synchronization and ensuring current sharing in a high-power system. The FAN5094 features remote voltage sensing, Programmable Active and advanced response for optimal converter transient response with minimum output capacitance. It has integrated high-current gate drivers with adaptive delay gate switching, eliminating the need for external drive devices. These make it possible to create power supplies running at a switching frequency as high as 4MHz, for ultra-high density. The FAN5094 uses a 5-bit D/A converter to program the output voltage from 1.100V to 1.850V in 25mV steps with an accuracy of The FAN5094 uses a high level of integration to deliver load currents in excess of 150A from a 12V source with minimal external circuitry. The FAN5094 also offers integrated functions including Power Good, Output Enable/Soft Start, under-voltage lockout, overvoltage protection, and current limiting with independent current sense on each phase. It is available in a 28-pin TSSOP package. FAN5094 + PHASE CLK ISHR CLK ISHR PHASE +12V +12V FAN5094 +12V Processor Pentium is a registered trademark of Intel Corporation. Athlon is a registered trademark of AMD. Programmable Active Droop is a trademark of Fairchild Semiconductor. FAN5094 Pin Assignments VID0 VID1 VID2 VID3 VID4 CLK BYPASS AGND LDRVB GNDB ISNSB SWB HDRVB BOOTB FAN5094 VFB RT ENABLE/SS DROOP/E* ISHR PHASE PWRGD VCC LDRVA GNDA ISNSA SWA HDRVA BOOTA PRODUCT SPECIFICATION Pin Number Pin Name VID0-4 BYPASS AGND LDRVB GNDB ISNSB HDRVB BOOTB BOOTA HDRVA ISNSA Ordering Information Product Number FAN5094MTC FAN5094MTCX Package 28 pin TSSOP Tape & Reel PRODUCT SPECIFICATION DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 5/13/02 0.0m 001 Stock#DS30005094 200 Fairchild Semiconductor Corporation

PDF Datasheet Preview

FAN5094

Multi-Phase Interleaved Buck Converter
• Programmable output from 1.100V to 1.850V in 25mV steps using an integrated 5-bit DAC
• Two interleaved synchronous phases per IC for maximum performance
• Up to 4 phase power system
• Built-in current sharing between phases and between ICs
• Frequency and phase synchronization between ICs
• Remote sense and Programmable Active Droop
• High precision voltage reference
• High speed transient response
• Programmable frequency from 200KHz to 2MHz
• Adaptive delay gate switching
• Integrated high-current gate drivers
• Integrated Power Good, OV, UV, Enable/Soft Start
functions
• Drives N-channel MOSFETs
• Operation optimized for 12V operation
• High mode at light load
• Overcurrent protection using MOSFET sensing
• 28 pin TSSOP package
• Power supply for
• Power supply for
• Power supply for Ultrasparc
• VRM for Pentium IV processor
• Programmable step-down power supply

Block Diagram
+12V VFB

The FAN5094 is a synchronous multi-phase DC-DC controller IC which provides a highly accurate, programmable output voltage for all high-performance processors. Two interleaved synchronous buck regulator phases with built-in current sharing operate 180° out of phase to provide the fast transient response needed to satisfy high current applications while minimizing external components. FAN5094s can be paralleled while maintaining both frequency and phase synchronization and ensuring current sharing in a high-power system. The FAN5094 features remote voltage sensing, Programmable Active and advanced response for optimal converter transient response with minimum output capacitance. It has integrated high-current gate drivers with adaptive delay gate switching, eliminating the need for external drive devices. These make it possible to create power supplies running at a switching frequency as high as 4MHz, for ultra-high density. The FAN5094 uses a 5-bit D/A converter to program the output voltage from 1.100V to 1.850V in 25mV steps with an accuracy of The FAN5094 uses a high level of integration to deliver load currents in excess of 150A from a 12V source with minimal external circuitry. The FAN5094 also offers integrated functions including Power Good, Output Enable/Soft Start, under-voltage lockout, overvoltage protection, and current limiting with independent current sense on each phase. It is available in a 28-pin TSSOP package.

FAN5094 +

PHASE

CLK ISHR

CLK ISHR PHASE
+12V +12V

FAN5094
+12V

Processor

Pentium is a registered trademark of Intel Corporation. Athlon is a registered trademark of AMD. Programmable Active Droop is a trademark of Fairchild Semiconductor.

FAN5094

Pin Assignments

VID0 VID1 VID2 VID3 VID4 CLK BYPASS AGND LDRVB GNDB ISNSB

SWB HDRVB

BOOTB

FAN5094

VFB RT ENABLE/SS

DROOP/E* ISHR PHASE PWRGD VCC LDRVA GNDA ISNSA SWA HDRVA BOOTA

PRODUCT SPECIFICATION

Pin Number

Pin Name

VID0-4

BYPASS

AGND

LDRVB

GNDB

ISNSB

HDRVB

BOOTB

BOOTA

HDRVA

ISNSA
Ordering Information

Product Number FAN5094MTC FAN5094MTCX

Package 28 pin TSSOP Tape & Reel

PRODUCT SPECIFICATION

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:

Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.

A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
5/13/02 0.0m 001 Stock#DS30005094 200 Fairchild Semiconductor Corporation

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Datasheet ID: FAN5094MTCX 513919