FDMF3170

This device is not recommended for new designs. Please consider using the pin-to-pin replacement FDMF5062 instead.

The FDMF3170 is ON Semiconductor’s next generation Smart Power Stage (SPS) solutions with fully optimized, ultra-compact, integrated MOSFETs with advanced driver IC current and temperature sensors, for high-current, high frequency, and synchronous buck DC-DC converters.
With an integrated approach, the SPS switching power stage is optimized for driver and MOSFET dynamic performance, system parasitic reduction, and power MOSFET R_DS(ON).
The integration of Power MOSFETs with a driver IC also enables high accuracy module-level current and thermal monitoring. The FDMF3170 provides an output signal (IMON), which reports the real-time module current. The IMON signal can be used to replace inductor DCR current sense or resistor sense methods. There is also very accurate thermal monitoring (TMON) that provides a 0.8V output at 25°C with an 8 mV / °C slope.

Key Features

• Up to 70 A Instantaneous Peak Current Handling Capability
• High-Performance, Universal Footprint, Copper-Clip 5 mm x 6 mm PQFN Package
• ON Semiconductor’s PowerTrench® MOSFETs for Clean Voltage Waveforms and Reduced Ringing
• 30 V / 25 V Breakdown Voltage MOSFETs for Higher Long Term Reliability
• Optimized FET Pair for Highest Efficiency at 10% ~ 15 % Duty Cycle
• Optimized for Switching Frequencies up to 1 MHz
• Integrated Current Monitoring (IMON)
• Integrated Temperature Monitor (TMON)
• Catastrophic Fault Detection Features
• Thermal Flag (OTP) for Over-Temperature Condition
• Over-Current Protection FAULT (OCP)
• High-Side Short Detect FAULT
• Under-Voltage Lockout (UVLO) on VCC and PVCC
• ON Semiconductor Green Packaging
• Pb-Free, Halogen Free/BFR Free and RoHS Compliant

Application

• CPU and Memory Voltage Regulators Compliant with Intel's VR13 Purley Systems
• High-Current Multiphase Voltage Regulators
• Graphics Processing Unit (GPU) Cards
• Server, Storage, Telecom
• DC/DC Power Module