LTC3622/LTC3622-2 – 17V, Dual 1A Synchronous Step-Down Regulator with Ultralow Quiescent Current




Features

  • Dual Step-Down Outputs: 1A Per Channel
  • Wide VIN Range: 2.7V to 17V
  • Wide VOUT Range: 0.6V to VIN
  • Up to 95% Efficiency
  • No-Load IQ = 5μA with Both Channels Enabled; IQ < 4μA with Only One Channel Enabled
  • High Efficiency, Low Dropout Operation (100% Duty Cycle)
  • Constant Frequency (1MHz/2.25MHz) with External Frequency Synchronization
  • ±1% Output Voltage Accuracy
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Phase Shift Programmable with External Clock
  • Selectable Current Limit
  • Internal Compensation and Soft-Start
  • Compact 14-Pin DFN (3mm × 4mm) Package

Step-Down Regulator with Ultralow Quiescent Current

Description

The LTC®3622 is a dual 1A output, high efficiency synchronous monolithic step-down regulator capable of operating from input supplies up to 17V. The switching frequency is fixed to 1MHz or 2.25MHz with a ±50% synchronization range to an external clock. The regulator features ultralow quiescent current and high efficiency over a wide output voltage range.

 

For more detail: LTC3622/LTC3622-2 – 17V, Dual 1A Synchronous Step-Down Regulator with Ultralow Quiescent Current




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