Overview

Support is limited to customers who have already adopted these products.

The ISL99125B and 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. The ISL99125B and 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.

ISL99125B_ISL99135B Functional Diagram
ISL99125B_ISL99135B Functional Diagram
  • 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

Documentation

= Featured Documentation
Type Title Date
Datasheet
ISL99125B, ISL99135B Datasheet
PDF 840 KB
End Of Life Notice
PLC18031 - Cy 18 2H End of Life Notification
PDF 222 KB
Manual - Development Tools
ISL68201-99135DEMO1Z User Guide
PDF 1.95 MB
Application Note
AN1681: Grounding Techniques
PDF 509 KB
Application Note
AN1684: Nonideality of Ground
PDF 397 KB
5 items

Design & Development

ISL68201-99135DEMO1Z PWM Controller Demo Board Bottom

ISL68201-99135DEMO1Z

Demonstration
Learn More

Single-Phase R4™ Digital Hybrid PWM Controller and 35A DrMOS Module Demonstration Board

The ISL68201-99135DEMO1Z is a 6-layer board used to demonstrate a compact 13mm x 13mm 20A synchronous buck converter. Transient performance, fault protections, DC/AC...

Featured Documents:
ISL68201-99135DEMO1Z User Guide

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Buy / Sample
    Part Number
    ISL99135BDRZ-T
    circleObsolete
    memory
    view_in_ar
    		QFN
    Parametric Table tips

    Tips for Using This Parametric Table:

    • Hide Filters button in header: Collapse or expands filters
    • Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
    • Reset button in header: Reset all filters to the page default
    • Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
    • Export button in header: Export the filtered results of the table to an Excel document
    • Filter parts search bar in header: Type to filter table results by part number
    • Hide column button in column headers: Select to hide columns in table
    • AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
    • Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
    • Document icon next to product name in row: View the featured document for this product
    • Chip icon next to the right of the document icon in row: View the block diagram for this product
    • Cart icon to the right of the chip icon: Indicates that samples are available for this product