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IC manufacturers JoulWatt

JoulWatt JW5017

500mA, 30V Synchronous Step-Down Converter Evaluation Board


TopologyBuck Converter
Input voltage7.5-30 V
Output 15 V / 0.5 A


The JW5017 is a current mode monolithic buck switching regulator. Operating with an input range of 4.7V~30V, the JW5017 delivers 500mA ofcontinuous output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency withoutthe use of an external Schottky diode. At light loads, the regulator operates in low frequency to maintain high efficiency and low output ripples.Current mode control provides tight load transient response and cycle-by-cycle current limit.The JW5017 guarantees robustness with short-circuit protection, thermal protection, current run-away protection, and input under voltage lockout.


  • 4.7V to 30V operating input range
  • 500mA output current
  •  Up to 93% efficiency
  •  High efficiency (>78%) at light load
  •  Internal Soft-Start
  •  2MHz switching frequency
  •  Input under voltage lockout
  •  Available in SOT23-6 package
  •  Current run-away protection
  •  Short circuit protection
  •  Thermal protection

Typical applications

  • High Voltage Power Conversion
  • Automotive Systems
  • Industrial Power Systems
  • Distributed Power Systems
  • Battery Powered Systems