The ISL6612B and ISL6613B are high frequency MOSFET drivers specifically designed to drive upper and lower power N-Channel MOSFETs in a synchronous rectified buck converter topology. These drivers combined with HIP63xx or ISL65xx Multi-Phase Buck PWM controllers and N-Channel MOSFETs form complete core-voltage regulator solutions for advanced microprocessors. The ISL6612B drives the upper gate to above rising VCC POR (7V), while the lower gate can be independently driven over a range from 5V to 12V. The ISL6613B drives both upper and lower gates over a range of 5V to 12V. This drivevoltage provides the flexibility necessary to optimize applications involving trade-offs between gate charge and conduction losses. These drivers are optimized for POL DC/DC Converters for IBA Systems. An advanced adaptive zero shoot-through protection is integrated to prevent both the upper and lower MOSFETs from conducting simultaneously and to minimize the dead time. These products add an overvoltage protection feature operational before VCC exceeds its turn-on threshold, at which the PHASE node is connected to the gate of the low side MOSFET (LGATE). The output voltage of the converter is then limited by the threshold of the low side MOSFET, which provides some protection to the microprocessor if the upper MOSFET(s) is shorted during initial start-up. These drivers also feature a three-state PWM input which, working together with Intersil’s multi-phase PWM controllers, prevents a negative transient on the output voltage when the output is shut down. This feature eliminates the Schottky diode that is used in some systems for protecting the load from reversed output voltage events.

Features

  • Pin-to-pin Compatible with HIP6601 SOIC family
  • Dual MOSFET Drives for Synchronous Rectified Bridge
  • Low VCC Rising Threshold (7V) for IBA Applications.
  • Advanced Adaptive Zero Shoot-Through Protection
  • Body Diode Detection
  • Auto-zero of rDS(ON) Conduction Offset Effect
  • Adjustable Gate Voltage (5V to 12V) for Optimal Efficiency
  • 36V Internal Bootstrap Schottky Diode
  • Bootstrap Capacitor Overcharging Prevention
  • Supports High Switching Frequency (up to 2MHz)
  • 3A Sinking Current Capability
  • Fast Rise/Fall Times and Low Propagation Delays
  • Three-State PWM Input for Output Stage Shutdown
  • Three-State PWM Input Hysteresis for Applications With Power Sequencing Requirement
  • Pre-POR Overvoltage Protection
  • VCC Undervoltage Protection
  • Expandable Bottom Copper Pad for Enhanced Heat Sinking
  • Dual Flat No-Lead (DFN) Package
  • Near Chip-Scale Package Footprint; Improves PCB Efficiency and Thinner in Profile
  • Pb-Free (RoHS Compliant)

Applications

  • Optimized for POL DC/DC Converters for IBA Systems
  • Core Regulators for Intel® and AMD® Microprocessors
  • High Current DC/DC Converters
  • High Frequency and High Efficiency VRM and VRD

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active DFN Tube 100
Availability
Active DFN Reel 6000
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL6612B, ISL6613B Datasheet Datasheet PDF 679 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1116: CMOS Applications Information Application Note PDF 576 KB
PCNs & PDNs
PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II Product Change Notice PDF 398 KB
PCN10055 - Alternate Bond Wire Material for Assembly of the Listed Intersil DFN/QFN Packaged Products - STATS ChipPAC Malaysia Product Change Notice PDF 248 KB
Other
TB363: Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs) Other PDF 293 KB
TB458: Converting a Fixed PWM to an Adjustable PWM Other PDF 315 KB
TB417: Designing Stable Compensation Networks for Single Phase Voltage Mode Buck Regulators Other PDF 562 KB