FAN23SV04TAMPX: 4 A Synchronous Buck Regulator for DDR Termination

Description: The FAN23SV04TAMPX is a highly efficient, integrat...
  • The FAN23SV04TAMPX is a highly efficient, integrated synchronous buck regulator for use in tracking applications, such as DDR termination rails. The VDDQ input includes an internal 2:1 resistive voltage divider to reduce total circuit size and component count. The regulator operates with an input range from 7 V to 18 V and supports up to 4 A load currents. The device can operate from a 5 V rail (±10%) if VIN, PVIN, and PVCC are connected together to bypass the internal linear regulator.
    This device utilizes Fairchild’s constant on-time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency.
    Switching frequency and sourcing over-current protection can be programmed to provide a flexible solution for various applications.
    Output over-current, and thermal shutdown protections help prevent damage during fault conditions. A hysteresis feature restarts the device when normal operating temperature is reached.
  • Features
  • VIN Range: 7 V to 18 V Using Internal Linear Regulator for Bias
  • VIN Range: 4.5 V to 5.5 V with VIN/PVIN/PVCC Connected to Bypass Internal Regulator
  • High Efficiency
  • Continuous Output Current: 4 A
  • Internal Linear Bias Regulator
  • Internal VDDQ Resistor Divider
  • Excellent Line and Load Transient Response
  • Output Voltage Range: 0.5 to 1.5 V
  • Programmable Frequency: 200 kHz to 1.5 MHz
  • Programmable Soft-Start
  • Low Shutdown Current
  • Adjustable Sourcing Current Limit
  • Internal Boot Diode
  • Thermal Shutdown
  • Halogen and Lead Free, RoHS Compliant
  • Applications
  • Servers, Desktop Computers
  • Notebooks, Netbooks
  • Game Consoles
  • Bus Termination
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Availability and Samples
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 4 A Synchronous Buck Regulator for DDR Termination
  • Package Type: PQFN-34
  • Package Case Outline: 483AM
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):13 to 16
  • Arrow:0
  • ON Semiconductor:18,000
  • Specifications
  • Topology: Step-Down 
  • Control Mode: Hysteretic 
  • VCC Min (V): null 
  • VCC Max (V): 18 
  • VO Typ (V): Adjustable 
  • IO Typ (A):
  • Efficiency (%): ≥90% 
  • fSW Typ (kHz): Adjustable 
  • Package Type: PQFN-34 
  • ON Semiconductor Full Web Site