3A, 50V, 100kHz Step-Down Converter with Programmable Output OVP Threshold



The MP2497 is a monolithic step-down switch mode converter with a programmable output current limit. It achieves 3A continuous output current over a wide input supply range with excellent load and line regulation. An internal 2~4ms soft start prevents inrush current at turning on. And it is capable of providing output line drop compensation.  MP2497 achieves low EMI signature with well controlled switching edges.  Fault condition protection includes hiccup current limit and short circuit protection, programmable output over voltage protection and thermal shutdown.  The MP2497 requires a minimum number of readily available standard external components. The MP2497 is available in SOIC8 and SOIC8E package.


  • Wide 4.5V to 50V Operating Input Range
  • Programmable Output Over Voltage Protection
  • Output Adjustable from 0.8V to 15V
  • 0.15O Internal Power MOSFET Switch
  • Internal 4ms Soft Start
  • Stable with Low ESR Output Ceramic Capacitors
  • Fixed 100kHz Frequency
  • Low EMI Signature
  • Thermal Shutdown
  • Output Line Drop Compensation
  • Hiccup Circuit Limit and Short Circuit Protection
  • Available in SOIC8 and SOIC8E Package


  • fsw (max) (kHz)100
  • 最小输入电压4.5
  • Vin (max) (V)50
  • Iout (max) (A)3
  • Isw Limit (typ) (A)5
  • Vfb (V)0.8
  • Iq (typ) (mA)1.2
  • 额定输出1
  • Vout (max) (V)25
  • Vout (min) (V)0.8
  • PG
  • SS内部
  • GradeCatalog
  • PackageSOIC-8
  • Control ModeCurrent Mode