FDMF3035 USB Lithium Ion Battery Charger IC Ultra Compact High Current Handling

FDMF3035 Power Path Management IC Gate Drivers SMART POWER STAGE MODULE

Features

•  Supports PS4 Mode for IMVP-8

•  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

•  Low Shutdown Current IVCC < 6 μA

•  Diode Emulation for Enhanced Light Load Efficiency

•  Fairchild PowerTrench® MOSFETs for Clean Voltage Waveforms and Reduced Ringing

•  Fairchild SyncFETTM Technology (Integrated Schottky Diode) in Low-Side MOSFET

•  Integrated Bootstrap Schottky Diode

•  Optimized / Extremely Short Dead-Times

•  Under-Voltage Lockout (UVLO) on VCC

•  Optimized for Switching Frequencies up to 1.5 MHz

•  Operating Junction Temperature Range: -40°C to +125°C

•  Fairchild Green Packaging and RoHS Compliance

Description

The SPS family is Fairchild’s next-generation, fully optimized, ultra-compact, integrated MOSFET plus driver power stage solution for high-current, high- frequency, synchronous buck, DC-DC applications. The FDMF3035 integrates a driver IC with a bootstrap Schottky diode and two power MOSFETs into a thermally enhanced, ultra-compact 5 mm x 5 mm package.

With an integrated approach, the SPS switching power stage is optimized for driver and MOSFET dynamic performance, minimized system inductance, and power MOSFET RDS(ON). The SPS family uses Fairchild's high- performance PowerTrench® MOSFET technology, which reduces switch ringing, eliminating the need for a snubber circuit in most buck converter applications.

A driver IC with reduced dead times and propagation delays further enhances the performance. The FDMF3035 supports diode emulation (using FCCM pin) for improved light-load efficiency. The FDMF3035 also provides a 3-state 5 V PWM input for compatibility with a wide range of PWM controllers.

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