TDK FS3303 µPOL™ Buck Regulator

TDK FS3303 µPOL™ Buck Regulator is an easy-to-use, fully integrated, and highly efficient micro-Point-of-Load (µPOL™) voltage regulator. This buck regulator, featuring an on-chip Pulse-Width Modulation (PWM) controller and integrated MOSFETs, incorporates an inductor, resulting in an ultra-compact 3A synchronous buck regulator. The FS3303 regulator operates at a 2.75V to 5.5V input voltage range and -40°C to 125°C operating temperature range. This regulator built-in protection features include soft-start protection, over-voltage protection, thermally compensated overcurrent protection with hiccup mode, and thermal shutdown with auto-recovery. The FS3303 regulator is ideal for optical networking systems, FPGAs, ASICs, SoCs, storage requirements, industrial applications, LDO replacement at high efficiency, drones, robotics, IoT, and portable devices. 

The FS3303 µPOL buck regulator features a low-profile package, making it suitable for automated assembly using standard surface-mount equipment. This buck regulator is lead-free, halogen-free, and compliant with EU Directives REACH and RoHS.

Features

  • µPOL™ package with output inductor included
  • 2.5mm x 2.5mm x 1.2mm small size dimesions
  • 3A load continuous capability
  • Plug and play, where no external compensation is required
  • 2.75V to 5.5V input voltage range
  • 0.4V to 3.3V adjustable output voltage
  • ±0.5% initial accuracy
  • Enable and power good
  • Over-current and short circuit protection
  • Open-drain power-good indicator
  • -40°C to 125°C operating temperature range
  • Lead-free and halogen-free
  • Compliant with EU Directives REACH and RoHS

Applications

  • Optical networking systems
  • FPGA, ASIC, and SOC
  • Storage requirements
  • Industrial requirements
  • LDO replacement at high efficiency
  • Drones, robotics, and IoT requirements
  • Portable requirements

Application Circuit

Application Circuit Diagram - TDK FS3303 µPOL™  Buck Regulator

Block Diagram

Block Diagram - TDK FS3303 µPOL™  Buck Regulator
發佈日期: 2025-12-17 | 更新日期: 2025-12-25