Overview
The FDMF3035-F135, produced by onsemi, is a Smart Power Stage (SPS) Module designed for high-current, high-frequency synchronous buck DC-DC converter applications. This module integrates a driver IC with a bootstrap Schottky diode and two power MOSFETs into a thermally enhanced, ultra-compact 5 mm x 5 mm PQFN package. It leverages onsemi’s high-performance POWERTRENCH® MOSFET technology to optimize driver and MOSFET dynamic performance, minimize system inductance, and reduce power MOSFET RDS(ON).
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | -0.3 | - | 7.0 | V |
| Drive Voltage (PVCC) | -0.3 | - | 7.0 | V |
| PWM Signal Input (VPWM) | -0.3 | - | VCC + 0.3 | V |
| Current Rating | - | - | 50 A | A |
| Switching Frequency | - | - | Up to 1.5 MHz | Hz |
| Operating Junction Temperature | -40 | - | 125 | °C |
| Package Type | - | - | 31-Lead PQFN | - |
Key Features
- Ultra-compact 5 mm x 5 mm PQFN package with copper-clip and flip-chip low-side MOSFET.
- High current handling: up to 50 A.
- 3-state 5 V PWM input for compatibility with a wide range of PWM controllers.
- Low shutdown current: IVCC < 6 μA.
- Diode emulation for enhanced light-load efficiency.
- onsemi POWERTRENCH MOSFETs for clean voltage waveforms and reduced ringing.
- Integrated bootstrap Schottky diode and onsemi SyncFET™ technology in low-side MOSFET.
- Optimized for extremely short dead-times and under-voltage lockout (UVLO) on VCC.
Applications
- Notebook, Tablet PC, and Ultrabook.
- Servers and Workstations: V-Core and Non-V-Core DC-DC Converters.
- Desktop and All-in-One Computers: V-Core and Non-V-Core DC-DC Converters.
- High-Current DC-DC Point-of-Load Converters.
- Small Form-Factor Voltage Regulator Modules).
Q & A
- What is the FDMF3035-F135 module used for?
The FDMF3035-F135 is used for high-current, high-frequency synchronous buck DC-DC converter applications).
- What is the package type and size of the FDMF3035-F135?
The module is packaged in a 31-lead, 5 mm x 5 mm PQFN package).
- What is the maximum current handling of the FDMF3035-F135?
The module can handle up to 50 A of current).
- What is the switching frequency range of the FDMF3035-F135?
The module supports switching frequencies up to 1.5 MHz).
- Does the FDMF3035-F135 support diode emulation?
Yes, the module supports diode emulation for enhanced light-load efficiency).
- What is the operating junction temperature range of the FDMF3035-F135?
The operating junction temperature range is from -40°C to +125°C).
- What are the key features of the onsemi POWERTRENCH MOSFETs in the FDMF3035-F135?
The onsemi POWERTRENCH MOSFETs provide clean voltage waveforms and reduced ringing).
- How does the FDMF3035-F135 handle shutdown?
The module can be shut down by setting the FCCM pin to a HIGH impedance state, resulting in a low shutdown current of IVCC < 6 μA).
- What are some typical applications of the FDMF3035-F135?
Typical applications include notebook, tablet PC, servers, workstations, desktop and all-in-one computers, and high-current DC-DC point-of-load converters).
- Does the FDMF3035-F135 have any power-on reset features?
Yes, the module incorporates a Power-On Reset (POR) feature and Under-Voltage Lockout (UVLO) on VCC).
