Overview
The FDMF3035 is a Smart Power Stage (SPS) module from onsemi, designed for high-current, high-frequency synchronous buck, DC-DC applications. This module integrates a driver IC, a bootstrap Schottky diode, and two power MOSFETs into a thermally enhanced, ultra-compact 5 mm x 5 mm PQFN Copper-Clip package. It utilizes onsemi’s high-performance POWERTRENCH® MOSFET technology, which reduces switch ringing and eliminates the need for a snubber circuit in most buck converter applications. The module is optimized for driver and MOSFET dynamic performance, minimized system inductance, and low power MOSFET RDS(ON).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | PQFN-31 | |
| Package Size | 5 mm x 5 mm | |
| Maximum Current Handling | 50 A | A |
| PWM Input Voltage | 3-state 5 V | V |
| Shutdown Current (IVCC) | < 6 μA | μA |
| Operating Ambient Temperature Range | -40°C to +125°C | °C |
| Switching Frequency | Up to 1.5 MHz | MHz |
| Supply Voltage (VCC) | -0.3 to 7.0 V | V |
| Drive Voltage (PVCC) | -0.3 to 7.0 V | V |
Key Features
- Ultra-compact 5 mm x 5 mm PQFN Copper-Clip package with flip chip low-side MOSFET
- High current handling: 50 A
- 3-state 5 V PWM input gate driver for compatibility with a wide range of PWM controllers
- Diode emulation for enhanced light-load efficiency
- onsemi POWERTRENCH® MOSFETs for clean voltage waveforms and reduced ringing
- onsemi SyncFET™ technology (integrated Schottky diode) in low-side MOSFET
- Integrated bootstrap Schottky diode
- Optimized for extremely short dead times
- Under-voltage lockout (UVLO) on VCC
- Supports PS4 Mode for IMVP-8
Applications
- Automotive systems, including infotainment and navigation systems
- Industrial control systems, such as motor drives and robotics
- Consumer electronics, like smartphones and tablets
- Data centers and cloud computing infrastructure
Q & A
- Q: What is the FDMF3035 module designed for?
A: The FDMF3035 is designed for high-current, high-frequency synchronous buck, DC-DC applications.
- Q: What are the key components integrated into the FDMF3035 module?
A: The module integrates a driver IC, a bootstrap Schottky diode, and two power MOSFETs.
- Q: What is the package size of the FDMF3035 module?
A: The module is packaged in an ultra-compact 5 mm x 5 mm PQFN Copper-Clip package.
- Q: What is the maximum current handling of the FDMF3035?
A: The module can handle up to 50 A of current.
- Q: What is the purpose of the diode emulation feature in the FDMF3035?
A: Diode emulation enhances light-load efficiency by detecting zero current crossing of the output inductor and preventing negative inductor current.
- Q: What is the operating ambient temperature range of the FDMF3035?
A: The module operates within an ambient temperature range of -40°C to +125°C.
- Q: What is the maximum switching frequency supported by the FDMF3035?
A: The module is optimized for switching frequencies up to 1.5 MHz.
- Q: What is the shutdown current of the FDMF3035?
A: The shutdown current (IVCC) is less than 6 μA.
- Q: Is the FDMF3035 RoHS compliant?
A: Yes, the FDMF3035 is RoHS compliant.
- Q: What are some typical applications of the FDMF3035?
A: Typical applications include automotive systems, industrial control systems, consumer electronics, and data centers.
