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M7085 - PFM STEP-DOWN DC-DC CONTROLLER

General Description

The UTC M7085 step-down DC-DC Controller is optimized for use with a power PMOSFET.

It utilize a Pulse-Frequency Modulation (PFM) control scheme that implies high efficiency operation at light loads.

Key Features

  • High efficiency 90% and up is possible.
  • Low dropout operation 100% duty cycle.
  • Maximum operating frequency > 1MHz.
  • Two methods of over-current protection.
  • 4.5V ~ 35V wide input range.
  • 1.24V ~ VIN adjustable output range.

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www.DataSheet4U.com UNISONIC TECHNOLOGIES CO., LTD M7085 PFM STEP-DOWN DC-DC CONTROLLER DESCRIPTION The UTC M7085 step-down DC-DC Controller is optimized for use with a power PMOSFET. It utilize a Pulse-Frequency Modulation (PFM) control scheme that implies high efficiency operation at light loads. There are two user-selectable over-current protection methods one provides over-current protection by taking advantage of the RDS(ON) of the P- Channel. The other provides accurate over-current protection with the use of an external sense resistor. The cycle-by-cycle current limit threshold can be adjusted with a external resistor.