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UD38251 - 38V SYNCHRONOUS BUCK CONVERTER

General Description

The UTC UD38251 is a monolithic synchronous buck regulator.

The device integrates two internal power MOSFETs, and provides 2.5A of continuous load current over a wide input voltage of 8V to 38V.

Current mode control provides fast transient response and cycle-by-cycle current limit.

Key Features

  • S 　.
  • Wide 8V to 38V Operating Input Range.
  • Integrated 140mΩ Power MOSFET Switches.
  • Output Adjustable from VFB(1.00V±2%) to 20V.
  • Up to 93% Efficiency.
  • Internal Soft-Start.
  • Stable with Low ESR Ceramic Output Capacitors.
  • Fixed 160KHz Frequency.
  • Cycle-by-Cycle Over Current Protection.
  • Input Under/Over Voltage Lockout.

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UNISONIC TECHNOLOGIES CO., LTD UD38251 38V SYNCHRONOUS BUCK CONVERTER CMOS IC  DESCRIPTION The UTC UD38251 is a monolithic synchronous buck regulator. The device integrates two internal power MOSFETs, and provides 2.5A of continuous load current over a wide input voltage of 8V to 38V. Current mode control provides fast transient response and cycle-by-cycle current limit. An internal soft-start prevents inrush current at turn-on, provides a very compact solution with minimal external components.  FEATURES 　* Wide 8V to 38V Operating Input Range * Integrated 140mΩ Power MOSFET Switches * Output Adjustable from VFB(1.