ISL99135B: 35A DrMOS Module with Diode Emulation and PS4

The ISL99125B, ISL99135B are high-performance DrMOS power modules designed for high-frequency power conversion. By combining a high-performance FET driver and MOSFETs in an advanced package, high-density DC/DC converters may be created. Combined with an Intersil PWM controller, a complete voltage regulator solution can be created with reduced external components and minimum overall PCB real estate.

ISL99125B, ISL99135B feature a three-state PWM input that, working together with Intersil’s 5V PWM controllers (such as ISL6398, ISL9585x, ISL637x, ISL633x, ISL636x and ISL68201), will provide a robust solution in the event of abnormal operating conditions.

The ISL99125B, ISL99135B support high-efficiency operations not only at heavy loads, but also at light loads via its diode emulation capability. Diode emulation can be disabled for those applications where variable frequency operation is not desired at light loads.

ISL99125B, ISL99135B also feature very low shutdown supply current (3μA) to ensure the low power consumption, especially designed for IMVP8 PS4 shutdown operation.

Key Features
  • VIN range: 0V to 25V
  • Current capability: 25A (ISL99125B), 35A (ISL99135B)
  • Supports three-state 5.0V PWM input
  • 0.5Ω ON-resistance and 4A sink current capability
  • Diode emulation for enhanced light-load efficiency
  • Ultra low shutdown supply current (3μA) for PS4 operation
  • Low three-state hold-off time
  • Adaptive shoot-through protection
  • Integrated high-side gate-to-source resistor to prevent self turn-on due to high input bus dv/dt
  • VCC undervoltage lockout
  • Switching frequencies up to 2MHz
  • Pb-free (RoHS compliant)
  • 3.5x5 QFN 24 Ld package
Applications
  • High-efficiency and high-density VRM and VRD
  • Core, graphic, and memory regulators for microprocessors
  • High-density VR for server, networking, and cloud computing
  • POL DC/DC converters and video gaming consoles
Typical Diagram
Datasheets
TitleTypeUpdatedSizeOther Languages
ISL99125B, ISL99135B DatasheetPDF24 Jan 2017515 KB
User Guides
TitleTypeUpdatedSizeOther Languages
ISL68201-99135DEMO1Z User GuidePDF18 Aug 20161.27 MB
White Papers
TitleTypeUpdatedSizeOther Languages
Five Easy Steps to Create a Multi-Load Power SolutionPDF30 Jan 2017502 KB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
ISL99135BDRZ-T24 Ld QFNNA241260RoHS
ISL68201-99135DEMO1ZN/ARoHS
ISL99125B, ISL99135B Datasheet 24 Jan 2017
ISL68201-99135DEMO1Z User Guide 18 Aug 2016
Five Easy Steps to Create a Multi-Load Power Solution 30 Jan 2017