LT8650S-1

Obsolete

Dual Channel 4A, 42V, Synchronous Step-Down Silent Switcher 2 with 6.2µA Quiescent Current

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Part Details

  • Silent Switcher®2 Architecture:
    • Ultralow EMI on Any PCB
    • Eliminates PCB Layout Sensitivity
    • Internal Bypass Capacitors Reduce Radiated EMI
    • Optional Spread Spectrum Modulation
  • 4A DC from Each Channel Simultaneously
  • Up to 6A on Either Channel
  • Ultralow Quiescent Current Burst Mode® Operation:
    • 6.2μA IQ Regulating 12VIN to 5VOUT1 and 3.3VOUT2
    • Output Ripple <10mVP-P
  • Optional External VC Pin: Fast Transient Response and Current Sharing (Extra 50µA IQ/Channel)
  • Forced Continuous Mode
  • High Efficiency at High Frequency
  • 94.6% Efficiency at 2A, 5VOUT from 12VIN at 2MHz
  • 93.3% Efficiency at 4A, 5VOUT from 12VIN at 2MHz
  • Fast Minimum Switch-On Time: 40ns
  • Wide Input Voltage Range: 3.0V to 42V
  • Adjustable and Synchronizable: 300kHz to 3MHz
  • Small 4mm × 6mm 32-Pin LQFN Package
LT8650S-1
Dual Channel 4A, 42V, Synchronous Step-Down Silent Switcher 2 with 6.2µA Quiescent Current
LT8650S-1 Application Circuit LT8650S-1 Pin Configuration LT8650S-1 Performance Graph
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