High-Efficiency Point-of-Load Regulators

Fairchild's High-Efficiency Point-of-Load Regulators family provides higher system efficiency, which helps system designers meet tough energy standards and improve battery life while reducing total cost of ownership.

The High-Efficiency Point-of-Load Regulators family enables end-user applications to achieve greater than 96 percent efficiency over a very wide load range. This is achieved through multiple optimizations:

  1. Fine-tuned gate driver circuitry with optimized gate drive current and dead times for each specific part number, giving two percent higher efficiency, when compared to competitive solutions
  2. Constant on-time architecture with pulse frequency modulation (PFM) for highest light load efficiency

Additional optimizations help improve thermal performance and system robustness.

  1. Reduced switch node ringing and optimized wide duty cycle achieved by leveraging Fairchild's PowerTrench® MOSFETs with Shielded Gate technology
  2. Advanced packaging technology to minimize parasitic inductance and resistance, to achieve superior thermal performance

Key Features

  • 4 A, 6 A, 10 A and 15 A devices
  • Single, small footprint (5mm x 5.5mm PQFN 34L) compatibility for all devices
  • Minimizes external component count for reduced bill of materials (BOM) cost and improved system reliability
  • VIN = 4.5 V – 15 V
    • FAN2306/06M/10/15:
      • External 5 V bias required
      • VIN range of 4.5 V – 15 V
    • FAN23SV06/06P/SV10M/SV15M:
      • Integrated linear regulator for single voltage (+5 V and +12 V typ) operation
      • VIN range of 4.5 V - 5.5 V and 7 V – 15 V
    • FAN23SV04T:
      • Integrated linear regulator for single voltage (+12 V) operation
      • VIN range of 7 V – 15 V
      • Tracking operation for DDR Termination (Vtt)
  • VIN= 4.5 V – 24 V
    • FAN2356/60/65:
      • External 5 V bias required
      • VIN range of 4.5 V – 24 V
    • FAN23SV56/SV60/SV65:
      • Integrated linear regulator for single voltage (+5 V, +12 V and +19 V typ) operation
      • VIN range of 4.5 V - 5.5 V and 7 V – 24 V
  • Constant on-time controller with PFM mode
  • Compatible with all output capacitor types (MLCC, POSCAP, etc.)

Applications

  • Servers and desktop computers
  • Telecommunications
  • Game consoles
  • Base stations
  • General purpose POL
  • Notebooks

Typical Application with VIN = 12V - 19V

TinyBuck Typical Applications Diagram

FAN2310 Efficiency vs. Vout

Chart of FAN2310 Efficiency