Analog Devices Inc. LT8614 Step-Down Regulators

Analog Devices Inc. LT8614 Step-Down Regulators feature Silent Switcher architecture to minimize EMI/EMC emissions. The regulators deliver high efficiency at frequencies up to 3MHz. The devices are housed in a 3x4mm QFN and feature monolithic construction with integrated power switches. All necessary circuitry is included and yields a solution with a minimal PCB footprint.


  • Silent Switcher® Architecture
    • Ultralow EMI/EMC Emissions
  • High Efficiency at High Frequency
    • Up to 96% Efficiency at 1MHz, 12VIN to 5VOUT
    • Up to 94% Efficiency at 2MHz, 12VIN to 5VOUT
  • Wide Input Voltage Range: 3.4V to 42V
  • Ultralow Quiescent Current Burst Mode® Operation:
    • 2.5μA IQ Regulating 12VIN to 3.3VOUT
    • Output Ripple < 10mVP-P
  • Fast Minimum Switch On-Time: 30ns
  • Low Dropout Under All Conditions: 125mV at 1A
  • Safely Tolerates Inductor Saturation in Overload
  • Adjustable and Synchronizable: 200kHz to 3MHz
  • Peak Current Mode Operation
  • Accurate 1V Enable Pin Threshold
  • Internal Compensation
  • Output Soft-Start and Tracking
  • Small 18-Lead 3x4mm QFN


  • Automotive and Industrial Supplies
  • General Purpose Step-Down
  • GSM Power Supplies

Typical Application Circuit

Analog Devices Inc. LT8614 Step-Down Regulators
Published: 2019-06-11 | Updated: 2022-03-10