ISL6605 Data Sheet May 9, 2006 FN9091.7 Synchronous Rectified MOSFET Driver Features Drives Two N-Channel MOSFETs The ISL6605 is a high frequency, MOSFET driver optimized Adaptive Shoot-Through Protection to drive two N-Channel power MOSFETs in a synchronous- rectified buck converter topology. This driver combined with 0.4 On-Resistance and 4A Sink Current Capability an Intersil HIP63xx or ISL65xx Multi-Phase Buck PWM Supports High Switching Frequency controller forms a complete single-stage core-voltage - Fast Output Rise and Fall Time regulator solution with high efficiency performance at high - Ultra Low Propagation Delay 8ns switching frequency for advanced microprocessors. Three-State PWM Input for Power Stage Shutdown Internal Bootstrap Schottky Diode The IC is biased by a single low voltage supply (5V) and minimizes low driver switching losses for high MOSFET gate Low Bias Supply Current (5V, 30A) capacitance and high switching frequency applications. Enable Input Each driver is capable of driving a 3000pF load with an 8ns QFN Package propagation delay and less than 10ns transition time. This - Compliant to JEDEC PUB95 MO-220 QFN-Quad Flat product implements bootstrapping on the upper gate with an No Leads-Product Outline. internal bootstrap Schottky diode, reducing implementation - Near Chip-Scale Package Footprint Improves PCB Efficiency and Thinner in Profile. cost, complexity, and allowing the use of higher performance, cost effective N-Channel MOSFETs. Adaptive Pb-Free Plus Anneal Available (RoHS Compliant) shoot-through protection is integrated to prevent both Applications MOSFETs from conducting simultaneously. Core Voltage Supplies for Intel and AMD The ISL6605 features 4A typical sink current for the lower Microprocessors gate driver, which is capable of holding the lower MOSFET High Frequency Low Profile DC/DC Converters gate during the Phase node rising edge to prevent shoot- High Current Low Voltage DC/DC Converters through power loss caused by the high dv/dt of the Phase Synchronous Rectification for Isolated Power Supplies node. The ISL6605 also features a Three-State PWM input that, Related Literature working together with Intersil multi-phase PWM controllers, Technical Brief TB363 Guidelines for Handling and will prevent a negative transient on the output voltage when Processing Moisture Sensitive Surface Mount Devices (SMDs) the output is being shut down. This feature eliminates the Schottky diode that is usually seen in a microprocessor power system for protecting the microprocessor from reversed-output-voltage damage. Pinouts ISL6605 ISL6605 (8 LD SOIC) (8 LD QFN) TOP VIEW TOP VIEW UGATE 1 8 PHASE 8 7 BOOT 2 7 EN PWM 3 6 VCC BOOT EN 6 1 6 GND 4 5 LGATE 2 5 PWM VCC 3 4 CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2002-2006. All Rights Reserved Intel is a registered trademark of Intel Corporation. AMD is a registered trademark of Advanced Micro Devices, Inc. All other trademarks mentioned are the property of their respective owners. FOR NEW DESIGNS, INTERSIL RECOMMENDS DROP-IN ENHANCED PRODUCT - ISL6609 GND UGATE LGATE PHASEISL6605 Ordering Information Ordering Information PART PART TEMP. PKG. PART PART TEMP. PKG. NUMBER* MARKING RANGE (C) PACKAGE DWG. NUMBER* MARKING RANGE (C) PACKAGE DWG. ISL6605IBZA 6605IBZ -40 to 85 8 Ld SOIC M8.15 ISL6605CB ISL6605CB 0 to 70 8 Ld SOIC M8.15 (Note) (Pb-free) ISL6605CBZ ISL6605CBZ 0 to 70 8 Ld SOIC M8.15 ISL6605IR 605I -40 to 85 8 Ld 3x3 QFN L8.3x3 (Note) (Pb-free) ISL6605IRZ 05IZ -40 to 85 8 Ld 3x3 QFN L8.3x3 ISL6605CBZA ISL6605CBZ 0 to 70 8 Ld SOIC M8.15 (Note) (Pb-free) (Note) (Pb-free) ISL6605IRZA 05IZ -40 to 85 8 Ld 3x3 QFN L8.3x3 ISL6605CR 605C 0 to 70 8 Ld 3x3 QFN L8.3x3 (Note) (Pb-free) ISL6605CRZ 05CZ 0 to 70 8 Ld 3x3 QFN L8.3x3 ISL6558EVAL2 Evaluation Platform (ISL6558IR+ISL6605IR) (Note) (Pb-free) *Add -T suffix for tape and reel. ISL6605CRZA 05CZ 0 to 70 8 Ld 3x3 QFN L8.3x3 (Note) (Pb-free) NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets molding compounds/die attach materials and 100% matte ISL6605IB ISL6605IB -40 to 85 8 Ld SOIC M8.15 tin plate termination finish, which are RoHS compliant and compatible ISL6605IBZ 6605IBZ -40 to 85 8 Ld SOIC M8.15 with both SnPb and Pb-free soldering operations. Intersil Pb-free (Note) (Pb-free) products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. ti Block Diagram ISL6605 VCC BOOT EN UGATE VCC PHASE SHOOT- THROUGH 20K PROTECTION PWM CONTROL VCC LOGIC LGATE 20K GND FN9091.7 2 May 9, 2006