NCP3235: 4.5 V to 23 V, DC/DC Converter with Integrated MOSFETs

Datasheet: Buck Converter - High Current, Synchronous
Rev. 2 (488kB)
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The NCP3235 is a 15 A DC/DC converter with internal MOSFETs and offers flexibility in design. The device can deliver an adjustable output voltage as low as 0.6V to over 80% of the input voltage. Features include adjustable current limit, output voltage, and soft-start timing. Pin selectable features enable switching frequencies of 550 kHz or 1 MHz, selecting DCM/CCM operating modes, and the ability latch off or hiccup mode during over current. The part can be configure to operate in ultra-sonic mode to stay out of the audio band. The part is offered in a thermally enhanced 6mm by 6mm TQFN package.
Features   Benefits
  • Accurate 0.6 V reference
  • Adjustable output to set desired voltage as low as 0.6 V
  • DCM/CCM selectable options
  • Operate in discontinuous mode for higher efficiency at light loads
  • 550kHz/1.1MHz switching frequency
  • Design flexibility to select higher efficiency or smaller output filter
  • Ultra-sonic mode
  • Keeps capacitors from making audio sounds
  • Thermally enhanced QFN package
  • Higher dissipation with 3 exposed pads
  • Wide operating range 4.5 V to 21 V
  • Allows for use across multiple applications
  • Adjustable soft start
  • Allows smooth ramp up during power up
Applications   End Products
  • Computing/Servers
  • Datacom/Networking
  • FGPA, ASIC, DSP power
  • 12 V Point of load
  • Desktops
  • Servers
  • Networking
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
High Current Sync Buck Converter
STR-NCP3235-EVK Active
Strata Enabled NCP3235, 23V Input, 15A, Synchronous Buck Converter with Internal MOSFETs
Avnet (2020-08-19) : 2
Budgetary Price/Unit
Case Outline
NCP3235MNTXG Active, Not Rec
Halide free
NCP3235 QFN-40 485CM 3 260 Tape and Reel 2500 $0.927
Market Leadtime (weeks) : Contact Factory
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