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Fairchild Semiconductor FAN21 TinyBuck Regulators

Fairchild Semiconductor FAN21 TinyBuck™ integrated synchronous buck regulators contain synchronous MOSFETs and a controller/driver with optimized interconnects in one package, enabling designers to solve high-current requirements in a small area with minimal external components. The devices boast a peak efficiency of over 95% and wide input and output voltage ranges.

FAN21 TinyBuck regulators provide programmable frequency operation of 200KHz to 600KHz and include external compensation, programmable switching frequency, and current limit features that allow design optimization and flexibility. These Fairchild Semiconductor buck regulators also offer a summing current mode modulator that uses lossless current sensing for current feedback and over-current protection.

• Communication and DC-DC
• FPGA Core - Core Power
• POL Module - 12/5Vin, 1-3.3Vout, 3-10A
• Telecom Router - Auxiliary voltage rails
• Server and Storage
• Server - Auxiliary voltage rails
• Blade Server - Auxiliary voltage rails/Non V _core Sockets
  
• Consumer
• Consumer Robotics - Auxiliary power
• Set Top Boxes - Core Power/DDR Power
  
• Desktop Computing
• High-End Desktop - Auxiliary voltage rails
• Small Form Factor Desktops - Auxiliary voltage rails/Memory Voltage Rails
• Graphic Cards
  

• Higher System Efficiency
• Up to 95% peak efficiency, depending on duty cycle and frequency conditions.
• Higher system efficiency than conventional discrete solutions in the market.
• Higher system efficiency than other integrated products from the competition.
  
• Smaller Solution Size
• FAN21 TinyBuck integrates one controller IC, one driver IC and both high and low side FETs into a space-efficient 5mm X 6mm MLP package.
• FAN21 TinyBuck offers the smallest total system size in the market today.
• FAN21 TinyBuck has been designed to operate also at higher switching frequencies, reducing passive component count and further saving additional PCB area.
  
• Easier, Faster and More Flexible Design
• FAN21 TinyBuck solutions reduce design cycle time and design complexity.
• Wide input voltage gives designers the convenience of using one part number for multiple needs within their applications.