Dual 1.5A, 23V, 1.4MHz Step-Down Converter. Available in TSSOP20 with Exposed Pad and SOIC Packages

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Product Description

The MP28372 is a dual monolithic step-down switch mode converter with built-in internal power MOSFETs. It achieves 1.5A continuous output current for each output over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle­by­cycle current limiting and thermal shutdown. In shutdown mode, the regulator draws 40µA of supply current. The MP28372 requires a minimum number of readily available standard external components.

Product Features

  • 1.5A Current for Each Output
  • 0.18O Internal Power MOSFET Switches
  • Stable with Low ESR Output Ceramic Capacitors
  • Up to 90% Efficiency
  • 40µA Shutdown Mode
  • Fixed 1.4MHz Frequency
  • Thermal Shutdown
  • Cycle-by-Cycle Over Current Prot
  • Wide 4.75V to 23V Operating Input Range
  • Each Output Adjustable from 0.92V to 16V
  • Configurable for Single Output with Double the Current
  • Programmable Under Voltage Lockout
  • Programmable Soft-Start
  • Available in TSSOP20 with Exposed Pad and SOIC Packages


  • Vfb (V)0.92
  • Vin (min) (V)4.75
  • Vin (max) (V)23
  • Iout (max) (A)1.5
  • Iq (typ) (mA)2.4
  • Regulated Outputs2
  • fsw (max) (kHz)1400
  • Step-Down DC/DC Controller0
  • Step-Down DC/DC Converter2
  • Step-Up DC/DC Controller0
  • Step-Up DC/DC Converter0
  • Internal LDO0
  • GradeCatalog
  • PackageSOIC-16, TSSOP20F
  • Internal LDO
  • Step-Down Converter Current (A)1.5/1.5
  • Special FeaturesProgrammable UVLO
  • Common FeaturesDual Output, External Soft Start
  • SS外部
  • PGNo