F E S OR N W DE IGNS, INTERSIL RECOMMENDS OP N E O DR -IN E HANC D PR DUCT - ISL6609 DATASHEET ISL6605 FN9091 Rev 7.00 Synchronous Rectified MOSFET Driver May 9, 2006 The ISL6605 is a high frequency, MOSFET driver optimized Features to drive two N-Channel power MOSFETs in a synchronous- Drives Two N-Channel MOSFETs rectified buck converter topology. This driver combined with Adaptive Shoot-Through Protection an Intersil HIP63xx or ISL65xx Multi-Phase Buck PWM 0.4 On-Resistance and 4A Sink Current Capability controller forms a complete single-stage core-voltage Supports High Switching Frequency regulator solution with high efficiency performance at high - Fast Output Rise and Fall Time switching frequency for advanced microprocessors. - Ultra Low Propagation Delay 8ns The IC is biased by a single low voltage supply (5V) and Three-State PWM Input for Power Stage Shutdown minimizes low driver switching losses for high MOSFET gate Internal Bootstrap Schottky Diode capacitance and high switching frequency applications. Low Bias Supply Current (5V, 30A) Each driver is capable of driving a 3000pF load with an 8ns Enable Input propagation delay and less than 10ns transition time. This product implements bootstrapping on the upper gate with an QFN Package - Compliant to JEDEC PUB95 MO-220 QFN-Quad Flat internal bootstrap Schottky diode, reducing implementation No Leads-Product Outline. cost, complexity, and allowing the use of higher - Near Chip-Scale Package Footprint Improves PCB performance, cost effective N-Channel MOSFETs. Adaptive Efficiency and Thinner in Profile. shoot-through protection is integrated to prevent both Pb-Free Plus Anneal Available (RoHS Compliant) MOSFETs from conducting simultaneously. Applications The ISL6605 features 4A typical sink current for the lower gate driver, which is capable of holding the lower MOSFET Core Voltage Supplies for Intel and AMD Microprocessors gate during the Phase node rising edge to prevent shoot- through power loss caused by the high dv/dt of the Phase High Frequency Low Profile DC/DC Converters node. High Current Low Voltage DC/DC Converters Synchronous Rectification for Isolated Power Supplies The ISL6605 also features a Three-State PWM input that, working together with Intersil multi-phase PWM controllers, Related Literature will prevent a negative transient on the output voltage when Technical Brief TB363 Guidelines for Handling and the output is being shut down. This feature eliminates the Processing Moisture Sensitive Surface Mount Devices Schottky diode that is usually seen in a microprocessor (SMDs) 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 1 6 6 GND 4 5 LGATE 2 5 PWM VCC 3 4 FN9091 Rev 7.00 Page 1 of 10 May 9, 2006 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 Rev 7.00 Page 2 of 10 May 9, 2006