40A DrMOS Power Module with Integrated Diode Emulation and Thermal Warning Output


The ISL99140 is a high performance DrMOS power module designed for high frequency power conversion. By combining a high performance FET driver and MOSFETs in an advanced package, high density DC/DC converters can 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 ISL99140 features a three-state PWM input that, working together with Intersil’s multiphase PWM controllers, will provide a robust solution in the event of abnormal operating conditions. To further support robust applications, the ISL99140 features a thermal warning output that can be used to notify the power system of an impending thermal fail event.

The ISL99140 supports high efficiency operation not only at heavy loads, but also at light loads through its diode emulation capability. Diode emulation can be disabled for those applications in which variable frequency operation is not desired at light loads.


  • Compliant with Intel DrMOS revision 4.0 specifications
  • 40A average output current capability
  • Supports 3-state 3.3V PWM input
  • Supports 2-state 5V PWM input
  • Thermal warning output
  • Diode emulation option
  • Adaptive shoot-through protection
  • Integrated high-side gate-to-source resistor to prevent self turn-on due to high input bus dV/dt
  • Undervoltage lockout
  • Switching frequencies up to 2MHz
  • Pb-free (RoHS compliant)
  • 6x6 QFN package


 Block Diagram


Basic Information
Production Status
Mass Production
Output Current Max (A)
Bias Voltage Range (V)
4.75 to 5.25
Input Voltage Min (V)
Input Voltage Max (V)
PWM Level
3.3V 3-State, 5V 2-State
Switching Freq. (max) (MHz)
Qualification Level
Temperature Range
-40 to +85

Confirm below disclaimers

Input Renesas account name and password