FAN53600: 3 MHz, 600 mA / 1A Synchronous Buck Regulator

Description: The FAN53600/10 is a 3 MHz step-down switching vol...
  • The FAN53600/10 is a 3 MHz step-down switching voltage regulator, available in 600 mA or 1 A options, that delivers a fixed output from an input voltage supply of 2.3 V to 5.5 V. Using a proprietary architecture with synchronous rectification, the FAN53600/10 is capable of delivering a peak efficiency of 92%, while maintaining efficiency over 80% at load currents as low as 1 mA.
    The regulator operates at a nominal fixed frequency of 3 MHz, which reduces the value of the external components to as low as 1 µH for the output inductor and 4.7 µF for the output capacitor. In addition, the Pulse-Width Modulation (PWM) modulator can be synchronized to an external frequency source.
    At moderate and light loads, Pulse Frequency Modulation (PFM) is used to operate the device in Power-Save Mode with a typical quiescent current of 26 µA. Even with such a low quiescent current, the part exhibits excellent transient response during large load swings. At higher loads, the system automatically switches to fixed-frequency control, operating at 3 MHz. In Shutdown Mode, the supply current drops below 1 µA, reducing power consumption. For applications that require minimum ripple or fixed frequency, PFM Mode can be disabled using the MODE pin.
    The FAN53600/10 is available in 6-bump, 0.4 mm pitch, Wafer-Level Chip-Scale Package (WLCSP).
  • Features
  • 600 mA or 1 A Output Current Capability
  • 26 µA Typical Quiescent Current
  • 3 MHz Fixed-Frequency Operation
  • Best-in-Class Load Transient Response
  • Best-in-Class Efficiency
  • 2.3 V to 5.5 V Input Voltage Range
  • 0.8 V to 3.3 V Fixed Output Voltage
  • Low Ripple Light-Load PFM Mode
  • Forced PWM and External Clock Synchronization
  • Internal Soft-Start
  • Input Under-Voltage Lockout (UVLO)
  • Thermal Shutdown and Overload Protection
  • Optional Output Discharge
  • 6-Bump WLCSP, 0.4 mm Pitch
  • Technical Documentation & Design Resources
    Availability and Samples
    FAN53600AUC28X
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 3 MHz, 600 mA / 1A Synchronous Buck Regulator
  • Package Type: WLCSP-6
  • Package Case Outline: 567QE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):17 to 20
  • Arrow:0
  • Mouser:>1K
  • FAN53600AUC33X
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 3 MHz, 600 mA / 1A Synchronous Buck Regulator
  • Package Type: WLCSP-6
  • Package Case Outline: 567RQ
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):4 to 8
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • ON Semiconductor:93,000
  • Specifications
  • Topology: Step-Down 
  • Control Mode: Voltage Mode 
  • VCC Min (V): 2.3 
  • VCC Max (V): 5.5 
  • VO Typ (V): 2.8  3.3 
  • IO Typ (A): 0.6 
  • Efficiency (%): 97 
  • fSW Typ (kHz): 3000 
  • Package Type: WLCSP-6 
  • ON Semiconductor Full Web Site